People: Kevin Swiber
Components (All)
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Tweets
Last Week
Kevin Swiber
- Sat, Oct 30, 2021 - The scatter-gather pattern in the API Gateway was the precursor to the Backend-for-Frontend pattern. The former is _still_ a viable option often at lower cost.
- Sat, Oct 30, 2021 - In 2012, I co-presented a Webinar we called The New 3-Tier Architecture. It has been almost 10 years, and it’s incredible how much this still rings true. Frontend -> API Gateway -> APIs. https://t.co/ZmKbg14tog
- Sat, Oct 30, 2021 - When we talk about API-first, it’s more than just domain modeling. We are building networked applications, distributed systems. The contracts are influenced by the architecture. It’s the combination of multiple disciplines that make this successful.
- Sat, Oct 30, 2021 - We could probably do a meaningful breakdown of different technologies using these thoughts as a guide. What’s the impact of GraphQL vs an API with materialized views? How much behavior should move to the client-server interface given evolution requirements? And so on.
- Sat, Oct 30, 2021 - It’s important to understand this when designing your data transfer mechanism—the API. What compromises will you make on state ownership, storage, and compute?
- Mon, Oct 25, 2021 - I'm trying to get a handle on @webMethods_io API Gateway for a gateway research project I'm doing. Anyone have experience with this? Software AG offers an awful lot, and I'm getting lost in the docs.
Last Month
Kevin Swiber
- Sat, Oct 23, 2021 - @taylor_atx Regional conferences often depend on sponsorship from local tech companies. This floods the conference with vendor talks and may homogenize it with the bulk of attendees being employed by sponsors.
- Sat, Oct 23, 2021 - @taylor_atx This is a very thoughtful take. So, here’s my experience. For API Craft Conference 2013, we capped it at 150. We went all-in on an Open Space Technology approach. To this day, I hear from people about how it was the best experience. Transparent sponsors were a huge part of that.
- Mon, Oct 18, 2021 - Really excited about the work @palindromeotter has done here! If you’re at #DevNetCreate tomorrow, definitely check out their talk! https://t.co/UWO6UO7PG9
- Sun, Oct 17, 2021 - I’m not sure why I didn’t think of coupling static site generators with read-only, static APIs before recently. @GatsbyJS has a particular model that allows me to use those static API representations as data to populate pages at build time.
- Fri, Oct 15, 2021 - Do you think about debugging and observability when designing APIs? How do you effectively capture the application state within a consumer-producer interaction? Do you wanna see that survivorship bias plane again? Check out my talk from @APISpecs 2021! https://t.co/cCdHGKnBEC
- Fri, Oct 15, 2021 - 2 years ago today, I was in Vancouver for @APISpecs 2019. I was so re-invigorated, seeing old friends and making new ones. 4 months later, I finished my consulting gigs and joined an API company again. Really excited to see how the industry continues to evolve! 💖
- Sun, Oct 10, 2021 - Big news! I took a new position at Postman. I’ll be doing R&D encompassing the full API lifecycle with a focus on how dev tools can best integrate for a cohesive experience. I’m now part of the Open Technologies team, joining @kinlane, @libel_vox, @relequestual, @fmvilas, & more!


Why we made this Project?
Phishing is one of the most dangerous cyber attacks that
this world has ever seen.
Facebook,Instagram,Wells Fargo,Twitter,Bank Of America, and
more companied have reported having thousands of their
users, manipulated using phishing tactics.
Our mission is to assist in helping prevent this, by
simulating the hacker's attacks themselves and teaching
others how to combat them.


This is a description of my website with id.
Want to know more about us?
Also here
Just a test
Div wrap1.
Div wrap2
Div wrap3


This is the most famous island of Australia. People love visiting here specially in summers. On weekends its the mosh rashy beech here. People often come for picnic. Swimming is the most favourite hobby of people here. Families often visit here on weekend and spend time here.
This is the most famous island of Australia. People love visiting here specially in summers. On weekends its the mosh rashy beech here. People often come for picnic. Swimming is the most favourite hobby of people here. Families often visit here on weekend and spend time here.
My name is Chamkaur Singh and My Father name -Mr.Jagseer Singh.I live in a Village kishangarh pharwahi (mansa) Punjab ,India My Hobbies are singing ,dancing and reading Date of birth - 08/02/1999
I have done my undergraduation (+2) with non medical from Svm school bhikhi ,Punjab Now I am doing bachelor of IT from Federation University Australia


1 reference to SilentlyContinue
System.Management.Automation (1)
cimSupport\cmdletization\ScriptWriter.cs (1)
1550
return BehaviorOnNoMatch.
SilentlyContinue
;


A multimedia re-imagining of Eliot's classic modernist poem by The Tunnel Artists
The exhibition 'Heart of Darkness' opens at Hundred Years Gallery in Hoxton on the 31st Nov 2019


We at R&C Farm provide the best products for you. White meat has been considered to have numerous health benefits.That is why we at Oigara's sell chicken and rabbit meat.
Are you looking for Kienyeji chicken? Or are you looking for broilers? The choice is yours. We also sell Kienyeji eggs at a reasonable price.
If you are looking to keep your own rabbits, we also sell the young ones at an affordable price.
Rabbit meat is very nutrious and healthy. You should definitely try it!
In addition to the above product, we also have some additional services:
| Service | Information |
|---|---|
| Delivery | We offer delivery Services within Nairobi at a reasonable price |
| Booking | If you want to prepare for a big occasion and want to book products in advance we can also reserve them for you. |
| Chicks | We sell chicks that 3-5 days old to anyone who wants to venture in the field of poultry farming. |


Credits
Frameworks
All content built on top of these frameworks is the original work of the MTHS TSA Webmaster Team.
Bulma
The MIT License (MIT) Copyright (c) 2019 Jeremy Thomas Permission is hereby granted, free of charge, to any person obtaining a copy of this software and associated documentation files (the "Software"), to deal in the Software without restriction, including without limitation the rights to use, copy, modify, merge, publish, distribute, sublicense, and/or sell copies of the Software, and to permit persons to whom the Software is furnished to do so, subject to the following conditions: The above copyright notice and this permission notice shall be included in all copies or substantial portions of the Software.  IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE SOFTWARE.
Fonts
Cairo-ExtraLight.ttf: Copyright 2009 The Cairo Project Authors<EMAIL_ADDRESS>Cairo-Light.ttf: Copyright 2009 The Cairo Project Authors<EMAIL_ADDRESS>Cairo-Regular.ttf: Copyright 2009 The Cairo Project Authors<EMAIL_ADDRESS>Cairo-SemiBold.ttf: Copyright 2009 The Cairo Project Authors<EMAIL_ADDRESS>Cairo-Bold.ttf: Copyright 2009 The Cairo Project Authors<EMAIL_ADDRESS>Cairo-Black.ttf: Copyright 2009 The Cairo Project Authors<EMAIL_ADDRESS>Images
All pictures used are either royalty free or were taken or created by the MTHS TSA Webmaster team.
Photo by Andrew Roberts on Unsplash
Photo by John Cameron on Unsplash
Photo by Ronnie Overgoor on Unsplash
Photo by Morgan McDonald on Unsplash
Photo by Olav Tvedt on Unsplash


Not only is Zurich isn't known for it's special must see attractions, it’s consistently ranked in the first places in the list of the most expensive cities in the world – and this, is one of the things that could totally ruin my vacation.
The Altstadt district is arguably the most beautiful area in Zurich. Divided into two parts across the river, the winding streets are lined with houses from medieval times. Some great cafés, restaurants and shops are found here and also Switzerland’s highest concentration of clubs. On a tour of the Old Town it’s impossible to miss landmarks including the towering trio of churches, Fraumünster’s curiously green steeple and the St. Peter church that has the largest clock face in Europe. In short, you’ll want to visit, if only to spend your time in the Old Town.
Sure, it’s not the Mediterranean, but at Lake Zurich it’s possible to go for a dip (although not recommended in winter), hire a pedal boat or just lounge by the shore at one of the many parks that surround it. Cafés, bars and restaurants are dotted around the lake as well, providing a drink with a view.
Zurich has got some fantastic restaurants where it’s possible to try out traditional Swiss dishes. Aside from that it’s also got a great selection of international restaurants to cater to its diverse populations. Tantalise your tastebuds and take a look at some of the top foods you simply have to try before you pack your bags.
Zurich is a gateway to explore central Switzerland. There are so many great day-trips to take from Zurich that you’ll want to put aside some of your time to get out of the city and explore. The Rhine Falls (Europe’s largest waterfall), the beautiful and historic city of Lucerne, and towering Mount Titlis are all within a day’s trip of Zurich.


One day my employer decided to send me as a spy to find out the prices of fish and fish food at a competitive fish shop. I tried to behave like a casual customer and walked coolly into the competitor’s shop and gradually began to ask the prices of fish and fish food. After I had found out what was needed I bought a pair of cheap Black Mollies from his shop just to show him that I was a genuine customer. From the information I got, we found Ashok’s to be comparatively cheaper than the competitor.
During this period I improved my knowledge about aquarium fish tremendously. This was mainly due to two things. Firstly, I had spent a lot of time observing the fish at Ashok’s shop and getting practical experience from the places we visited.
Secondly, I had been reading the fish books that my father bought for me as a gift for getting a distinction in my SSC exam. The books were quite expensive but well worth the cost. Being able to get theoretical knowledge and practical experience at the same time gave me a lot of confidence with regard to aquarium fish.
One of the important highlights of my experience at Ashok’s was learning to make fish tanks. Ashok told me that since we were going through a slack period, he would teach me how to make fish tanks. I had to start from basics which meant purchasing glass for six tanks, having the glass pieces cut to specifications and then having the pieces delivered at the shop without a scratch.


Numbers 28:13
And a several tenth deal of flour mingled with oil for a meat offering unto one lamb; for a burnt offering of a sweet savor, a sacrifice made by fire unto the LORD.


{% extends 'main.html' %} {% block content %}
Your code is {{ code }}.
The instruction mail has been resent to {{ email }}.


{% extends "hydraviewer/base.html" %} {% load tethys_gizmos staticfiles %} {% block styles %} {{ block.super }} {% endblock %} {% block scripts %} {{ block.super }} {% endblock %} {% block app_content %}
During the 2015 monsoon season Cyclone Komen made landfall in Bangladesh in July, bringing additional heavy rains into Myanmar. These rains lead to a significant increase in monsoonal flood water, leading to severe flooding and landslides. Of the areas affected, Rakhine State was among the hardest hit regions during this flood event.


| Vector Basemap Style Editor Esri Vector Basemaps | Style Reference | GitHub |
↶
↷
Zoom: 1
OR source-layer:
Style Type
Basemap Color Palette


We provide a wide range of services leading to our 6-D process from -Discover -Define -Design -Develop -Deploy -Deliver
“People ignore design that ignores people.” Good UX design is all about putting the user first. Any aspect of a website, app or software that doesn’t consider the user’s needs is ultimately doomed to fail.
A primary benefit of adopting a responsive design is that it takes less time than creating an additional stand-alone mobile site, which has been the traditional approach. Testing across a number of websites also increases your development, support and maintenance overhead.
>“Software is easy to make, except when you want it to do something new. And then, of course, there is a corollary: The only software that's worth making is software that does something new.”
“We may have a perfectly adequate way of doing something, but that does not mean there cannot be a better way. So, we set out to find an alternative way. This is the basis of any improvement that is not fault correcting or problem-solving.”
A brilliant strategy, blockbuster product, or breakthrough technology can put you on the competitive map, but only solid execution can keep you there. Gary L. Neilson
Shop with A3Carl Online Store
"Often times we get to buy/sell a lot of things and try to give account of what went down, so i'm up with a budget App that helps you note down important items and i call it "Pen iT."!
"Shop with Buyitcarl online store."!
"Aged folks may not remember to take their medications at the right time and also the appropriate dosage to be taken. So, therefore, this logbook application is a handy tool that enables one to track and monitor key diabetes data activities."
“Innovative and self-starting Front-End Developer with 2+ years experience building stable eCommerce websites and apps in fast-paced, collaborative environments. Highly skilled in HTML/CSS/JavaScript/jQuery and working knowledge of Adobe XD. Well-versed in WordPress and Flutter.”
Download Resume


#^------------------------------ #^title trim=ends {_blog_post_json.title} #^------------------------------ #^_blog_post_json { "title":"Bards Log 13", "author":"Strumm", } #^------------------------------ #^_blog_post_body form=markdown It's been 2 whole years since we've gotten this band together to set off on this meandering adventure. Nothing could have prepared us for the events that were to unfold before our very eyes. After the incredulous Drummer Dave's secret-dwarven-time-travelling affair, and not to mention, his new found appreciation of self-erected statues, we were more than happy to jump into the offered portal to our initial intended holiday destination. It's been so long since we've had some time off, who knew saving lives were so much effort. Anyway, so we did just that - only to be transported to the wrong city where every single denizen was brainwashed to serve our heads on a silver platter to none other than that drasted band, Channel Divinity! What does a bard have to do to get some alone time around here?! Do these people not have lives? {tuwitu1} {tuwitu2} {tuwitu3} {tuwitu4} {tuwitu5} {tuwitu0} #^tuwitu5
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Gwinny Hilltopple 1 moon ago
Destroyed them and burnt down their house and remains.  It's over. We did it!!!
|
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Gwinny Hilltopple 1 moon ago
Naturally we broke into their house (using the wookie maneuver, and left a little brown present on their beds. Bards bards bards wins again.
|
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Gwinny Hilltopple 1 moon ago
The evil rival bard band "Channel Divinty" were back, turned a city into an army of zombies to try to kill us. Our drummer got trampled.
|
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Gwinny Hilltopple 1 moon ago
The demon i accidentally sold my soul to demanded i murder someone. Wasnt going to do it but the target was an arsehole. Oh well
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Sir Strumm-a-lot 1 moon ago
I'm sorry, Harmony.
|


| Property Name | Type | Description | Units | Range | Notes | Tags |
|---|---|---|---|---|---|---|
| colorCorrection | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public]
|
When android. |
||||
| android. |
rational
x
3 x 3
[public]
3x3 rational matrix in row-major order
|
A color transform matrix to use to transform from sensor RGB color space to output linear sRGB color space |
Output values are expected to be in the range
(0, |
This matrix is either set by HAL when the request
android. In the latter case, |
||
| android. |
float
x
4
[public]
A 1D array of floats for 4 color channel gains
|
Gains applying to Bayer color channels for white-balance |
The 4-channel white-balance gains are defined in
the order of [R G_ This array is either set by HAL when the request android. The ouput should be the gains actually applied by the HAL to the current frame. |
|||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
rational
x
3 x 3
[public]
3x3 rational matrix in row-major order
|
A color transform matrix to use to transform from sensor RGB color space to output linear sRGB color space |
Output values are expected to be in the range
(0, |
This matrix is either set by HAL when the request
android. In the latter case, |
||
| android. |
float
x
4
[public]
A 1D array of floats for 4 color channel gains
|
Gains applying to Bayer color channels for white-balance |
The 4-channel white-balance gains are defined in
the order of [R G_ This array is either set by HAL when the request android. The ouput should be the gains actually applied by the HAL to the current frame. |
|||
| control | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public]
|
Enum for controlling antibanding |
android. |
|||
| android. |
int32 [public] | Adjustment to AE target image brightness |
count of positive/ |
For example, |
||
| android. |
byte
[public as boolean]
|
Whether AE is currently locked to its latest calculated values |
Note that even when AE is locked, |
|||
| android. |
byte
[public]
|
Whether AE is currently updating the sensor exposure and sensitivity fields |
android. |
Only effective if android. |
||
| android. |
int32 x 5 x area_count [public] | List of areas to use for metering |
Each area is a rectangle plus weight: xmin, The coordinate system is based on the active pixel array, If all regions have 0 weight, |
|||
| android. |
int32 x 2 [public] | Range over which fps can be adjusted to maintain exposure |
android. |
Only constrains AE algorithm, |
||
| android. |
byte
[public]
|
Whether the HAL must trigger precapture
metering. |
This entry is normally set to IDLE, The effect of AE precapture trigger depends on the current AE mode and state; see the camera HAL device v3 header for details. |
|||
| android. |
byte
[public]
|
Whether AF is currently enabled, |
||||
| android. |
int32 x 5 x area_count [public] | List of areas to use for focus estimation |
Each area is a rectangle plus weight: xmin, The coordinate system is based on the active pixel array, If all regions have 0 weight, |
|||
| android. |
byte
[public]
|
Whether the HAL must trigger autofocus. |
This entry is normally set to IDLE, When included and set to START, |
|||
| android. |
byte
[public as boolean]
|
Whether AWB is currently locked to its latest calculated values |
Note that AWB lock is only meaningful for AUTO
mode; in other modes, |
|||
| android. |
byte
[public]
|
Whether AWB is currently setting the color
transform fields, |
[BC - AWB lock, |
|||
| android. |
int32 x 5 x area_count [public] | List of areas to use for illuminant estimation |
Only used in AUTO mode. Each area is a rectangle plus weight: xmin, The coordinate system is based on the active pixel array, If all regions have 0 weight, |
|||
| android. |
byte
[public]
|
Information to 3A routines about the purpose
of this capture, |
all must be supported |
Only used if android. |
||
| android. |
byte
[public]
|
Whether any special color effect is in use. |
android. |
|||
| android. |
byte
[public]
|
Overall mode of 3A control routines | all must be supported | |||
| android. |
byte
[public]
|
Which scene mode is active when
android. |
android. |
|||
| android. |
byte
[public as boolean]
|
Whether video stabilization is active |
If enabled, |
|||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
x
n
[public]
list of enums
|
Which set of antibanding modes are supported | ||||
| android. |
byte
x
n
[system]
list of enums
|
Which subset of AE modes is supported |
OFF, |
|||
| android. |
int32
x
2 x n
[public]
list of pairs of frame rates
|
List of frame rate ranges supported by the
AE algorithm/ |
||||
| android. |
int32 x 2 [public] |
Maximum and minimum exposure compensation
setting, |
At least (-2, |
|||
| android. |
rational [public] | Smallest step by which exposure compensation can be changed |
<= 1/ |
|||
| android. |
byte
x
n
[public]
List of enums
|
List of AF modes that can be selected |
OFF must be included. |
|||
| android. |
byte
x
n
[public]
list of enums
|
what subset of the full color effect enum list is supported | OFF must be listed | |||
| android. |
byte
x
n
[public]
list of enums from android.
|
what subset of the scene mode enum list is
supported. |
SCENE_ |
|||
| android. |
byte
x
n
[public]
List of enums.
|
List of video stabilization modes that can be supported | OFF must be included | |||
| android. |
byte
x
n
[public]
List of enums (android.
|
OFF, |
||||
| android. |
int32 [public] |
For AE, |
>= 1 | |||
| android. |
byte x 3 x length(availableSceneModes) [system] |
List of AE, |
For each listed scene mode, |
When a scene mode is enabled, To simplify communication with old camera API applications, It is recommended that for FACE_ |
||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32 [hidden] |
The ID sent with the latest
CAMERA2_ |
Must be 0 if no
CAMERA2_ |
|||
| android. |
int32 x 5 x area_count [public] | List of areas to use for metering |
Each area is a rectangle plus weight: xmin, The coordinate system is based on the active pixel array, If all regions have 0 weight, |
|||
| android. |
byte
[public]
|
Current state of AE algorithm |
Whenever the AE algorithm state changes, |
|||
| android. |
byte
[public]
|
Whether AF is currently enabled, |
||||
| android. |
int32 x 5 x area_count [public] | List of areas to use for focus estimation |
Each area is a rectangle plus weight: xmin, The coordinate system is based on the active pixel array, If all regions have 0 weight, |
|||
| android. |
byte
[public]
|
Current state of AF algorithm |
Whenever the AF algorithm state changes, |
|||
| android. |
int32 [hidden] |
The ID sent with the latest
CAMERA2_ |
Must be 0 if no CAMERA2_ |
|||
| android. |
byte
[public]
|
Whether AWB is currently setting the color
transform fields, |
[BC - AWB lock, |
|||
| android. |
int32 x 5 x area_count [public] | List of areas to use for illuminant estimation |
Only used in AUTO mode. Each area is a rectangle plus weight: xmin, The coordinate system is based on the active pixel array, If all regions have 0 weight, |
|||
| android. |
byte
[public]
|
Current state of AWB algorithm |
Whenever the AWB algorithm state changes, |
|||
| android. |
byte
[public]
|
Overall mode of 3A control routines | all must be supported | |||
| demosaic | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[system]
|
Controls the quality of the demosaicing processing | ||||
| edge | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public]
|
Operation mode for edge enhancement | ||||
| android. |
byte [system] | Control the amount of edge enhancement applied to the images | 1-10; 10 is maximum sharpening | |||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public]
|
Operation mode for edge enhancement | ||||
| flash | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte [system] |
Power for flash firing/ |
10 is max power; 0 is no flash. |
0 - 10 |
Power for snapshot may use a different scale than
for torch mode. |
|
| android. |
int64 [system] | Firing time of flash relative to start of exposure | nanoseconds | 0-(exposure time-flash duration) |
Clamped to (0, |
|
| android. |
byte
[public]
|
Select flash operation mode | ||||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte [public] | Whether this camera has a flash |
boolean (0 = false, |
If no flash, |
||
| android. |
int64 [system] | Time taken before flash can fire again | nanoseconds | 0-1e9 |
1 second too long/ |
|
| android. |
byte [system] |
The x, |
pair of floats | 0-1 for both | ||
| android. |
byte [system] | Max energy output of the flash for a full power single flash | lumen-seconds | >= 0 | ||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte [system] |
Power for flash firing/ |
10 is max power; 0 is no flash. |
0 - 10 |
Power for snapshot may use a different scale than
for torch mode. |
|
| android. |
int64 [system] | Firing time of flash relative to start of exposure | nanoseconds | 0-(exposure time-flash duration) |
Clamped to (0, |
|
| android. |
byte
[public]
|
Select flash operation mode | ||||
| android. |
byte
[public]
|
Current state of the flash unit | ||||
| geometric | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[system]
|
Operating mode of geometric correction | ||||
| android. |
byte [system] | Control the amount of shading correction applied to the images | unitless: 1-10; 10 is full shading compensation | |||
| hotPixel | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[system]
|
Set operational mode for hot pixel correction | ||||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32
x
2 x n
[system]
list of coordinates based on android.
|
Location of hot/ |
||||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[system]
|
Set operational mode for hot pixel correction | ||||
| jpeg | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
double
x
3
[public]
latitude,
|
GPS coordinates to include in output JPEG EXIF |
(-180 - 180], |
|||
| android. |
byte [public as string] | 32 characters describing GPS algorithm to include in EXIF | UTF-8 null-terminated string | |||
| android. |
int64 [public] | Time GPS fix was made to include in EXIF |
UTC in seconds since January 1, |
|||
| android. |
int32 [public] | Orientation of JPEG image to write | Degrees in multiples of 90 |
0, |
||
| android. |
byte [public] | Compression quality of the final JPEG image | 1-100; larger is higher quality | 85-95 is typical usage range | ||
| android. |
byte [public] | Compression quality of JPEG thumbnail | 1-100; larger is higher quality | |||
| android. |
int32 x 2 [public as size] | Resolution of embedded JPEG thumbnail |
from android. |
|||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32
x
2 x n
[public as size]
list of resolution pairs
|
Supported resolutions for the JPEG thumbnail |
Must include at least one valid resolution, |
|||
| android. |
int32 [system] | Maximum size in bytes for the compressed JPEG buffer | Must be large enough to fit any JPEG produced by the camera | This is used for sizing the gralloc buffers for JPEG | ||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
double
x
3
[public]
latitude,
|
GPS coordinates to include in output JPEG EXIF |
(-180 - 180], |
|||
| android. |
byte [public as string] | 32 characters describing GPS algorithm to include in EXIF | UTF-8 null-terminated string | |||
| android. |
int64 [public] | Time GPS fix was made to include in EXIF |
UTC in seconds since January 1, |
|||
| android. |
int32 [public] | Orientation of JPEG image to write | Degrees in multiples of 90 |
0, |
||
| android. |
byte [public] | Compression quality of the final JPEG image | 1-100; larger is higher quality | 85-95 is typical usage range | ||
| android. |
int32 [system] |
The size of the compressed JPEG image, |
>= 0 |
If no JPEG output is produced for the request, Otherwise, |
||
| android. |
byte [public] | Compression quality of JPEG thumbnail | 1-100; larger is higher quality | |||
| android. |
int32 x 2 [public as size] | Resolution of embedded JPEG thumbnail |
from android. |
|||
| lens | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
float [public] | Size of the lens aperture |
f-number (f/ |
android. |
Will not be supported on most devices. |
|
| android. |
float [public] | State of lens neutral density filter(s) | number of stops of filtering |
android. |
Will not be supported on most devices. |
|
| android. |
float [public] | Lens optical zoom setting | focal length in mm | > 0 |
Will not be supported on most devices. |
|
| android. |
float [public] |
Distance to plane of sharpest focus, |
diopters (1/ |
>= 0 |
0 = infinity focus. |
|
| android. |
byte
[public]
|
Whether optical image stabilization is
enabled. |
android. |
Will not be supported on most devices. |
||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
float x n [public] | List of supported aperture values |
one entry required, |
If variable aperture not available, |
||
| android. |
float x n [public] | List of supported ND filter values |
one entry required, |
If not available, |
||
| android. |
float
x
n
[public]
the list of available focal lengths
|
If fitted with optical zoom, |
> 0 |
If optical zoom not supported, |
||
| android. |
byte
x
n
[public]
list of enums
|
List of supported optical image stabilization modes | ||||
| android. |
float
x
2 x 3 x n x m
[system]
2D array of destination coordinate pairs for uniform grid points in source image,
|
A low-resolution map for correction of
geometric distortions and chromatic aberrations, |
N, |
[DNG wants a function instead]. |
||
| android. |
int32
x
2
[system as size]
width and height of geometric correction map
|
Dimensions of geometric correction map | Both values >= 2 | |||
| android. |
float [public] | Hyperfocal distance for this lens; set to 0 if fixed focus | diopters | >= 0 | The hyperfocal distance is used for the old API's 'fixed' setting | |
| android. |
float [public] | Shortest distance from frontmost surface of the lens that can be focused correctly | diopters | >= 0 |
If the lens is fixed-focus, |
|
| android. |
int32
x
2
[public as size]
width and height of lens shading map provided by the HAL.
|
Dimensions of lens shading map | Both values >= 1 | |||
| android. |
byte
[public]
|
Direction the camera faces relative to device screen | ||||
| android. |
float
x
2
[system]
degrees.
|
Relative angle of camera optical axis to the perpendicular axis from the display |
[0-90) for first angle, |
Examples:
(0, (45, (45, Use FACING field to determine perpendicular outgoing direction |
||
| android. |
float x 3, location in mm, in the sensor coordinate system [system] | Coordinates of camera optical axis on device | ||||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
float [public] | Size of the lens aperture |
f-number (f/ |
android. |
Will not be supported on most devices. |
|
| android. |
float [public] | State of lens neutral density filter(s) | number of stops of filtering |
android. |
Will not be supported on most devices. |
|
| android. |
float [public] | Lens optical zoom setting | focal length in mm | > 0 |
Will not be supported on most devices. |
|
| android. |
float [public] |
Distance to plane of sharpest focus, |
diopters (1/ |
>= 0 | Should be zero for fixed-focus cameras | |
| android. |
float
x
2
[public]
Range of scene distances that are in focus
|
The range of scene distances that are in sharp focus (depth of field) |
pair of focus distances in diopters: (near, |
>=0 |
If variable focus not supported, |
|
| android. |
byte
[public]
|
Whether optical image stabilization is
enabled. |
android. |
Will not be supported on most devices. |
||
| android. |
byte
[public]
|
Current lens status | ||||
| noiseReduction | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public]
|
Mode of operation for the noise reduction algorithm |
android. |
|||
| android. |
byte [system] | Control the amount of noise reduction applied to the images | 1-10; 10 is max noise reduction | 1 - 10 | ||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public]
|
Mode of operation for the noise reduction algorithm |
android. |
|||
| quirks | ||||||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte [system] |
If set to 1, |
Normalized coordinates refer to those in the
(-1000, HAL implementations should instead always use and emit sensor array-relative coordinates for all region data. |
|||
| android. |
byte [system] |
If set to 1, |
HAL implementations should implement AF trigger
modes for AUTO, |
|||
| android. |
byte [system] |
If set to 1, |
HAL implementations should use gralloc usage flags
to determine that a stream will be used for
zero-shutter-lag, |
|||
| android. |
byte [hidden] |
If set to 1, |
Does not need to be listed in static
metadata. |
|||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[hidden as boolean]
|
Whether a result given to the framework is the
final one for the capture, |
Optional. |
The entries in the result metadata buffers for a
single capture may not overlap, |
||
| request | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32 [system] |
A frame counter set by the framework. |
incrementing integer | Any int | ||
| android. |
int32 [hidden] |
An application-specified ID for the current
request. |
arbitrary integer assigned by application | Any int | ||
| android. |
int32 x n [system] |
List which camera reprocess stream is used
for the source of reprocessing data. |
List of camera reprocess stream IDs |
Typically, |
Only meaningful when android. |
|
| android. |
byte
[system]
|
How much metadata to produce on output | ||||
| android. |
int32 x n [system] | Lists which camera output streams image data from this capture must be sent to | List of camera stream IDs | List must only include streams that have been created |
If no output streams are listed, |
|
| android. |
byte
[system]
|
The type of the request; either CAPTURE or
REPROCESS. |
||||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32 x 3 [public] | How many output streams can be allocated at the same time for each type of stream |
The number of raw sensor streams; the number of
processed, |
>=1 for Raw and JPEG-compressed stream. |
Video snapshot with preview callbacks requires 3
processed streams (preview, |
|
| android. |
int32 x 1 [system] | How many reprocessing streams of any type can be allocated at the same time | >= 1 | |||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32 [public] |
A frame counter set by the framework. |
count of frames | > 0 | Reset on release() | |
| android. |
int32 [hidden] |
An application-specified ID for the current
request. |
arbitrary integer assigned by application | Any int | ||
| android. |
byte
[system]
|
How much metadata to produce on output | ||||
| android. |
int32 x n [system] | Lists which camera output streams image data from this capture must be sent to | List of camera stream IDs | List must only include streams that have been created |
If no output streams are listed, |
|
| scaler | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32 x 4 [public as rectangle] |
(x, A rectangle with the top-level corner of (x, HAL2. |
(x, |
Any additional per-stream cropping must be done to
maximize the final pixel area of the stream. For example, Conversely, The output streams must maintain square pixels at all times, |
||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32
x
n
[public as imageFormat]
values from HAL_
|
List of app-visible formats | ||||
| android. |
int64 x n [public] |
The minimum frame duration that is supported
for each resolution in availableJpegSizes. |
When multiple streams are configured, |
|||
| android. |
int32 x n x 2 [public as size] |
The resolutions available for output from
the JPEG block. |
Must include: - sensor maximum resolution Should
include: - half/ |
|||
| android. |
float [public] |
The maximum ratio between active area width
and crop region width, |
>=1 | |||
| android. |
int64 x n [public] |
The minimum frame duration that is supported
for each resolution in availableProcessedSizes. |
When multiple streams are configured, |
|||
| android. |
int32 x n x 2 [public as size] |
The resolutions available for use with
processed output streams, |
Must include: - sensor maximum resolution -
standard QCIF, |
The actual supported resolution list may be limited by
consumer end points for different use cases. |
||
| android. |
int64 x n [system] |
The minimum frame duration that is supported
for each raw resolution in availableRawSizes. |
When multiple streams are configured, |
|||
| android. |
int32 x n x 2 [system as size] |
The resolutions available for use with raw
sensor output streams, |
Must include: - sensor maximum resolution | |||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32 x 4 [public as rectangle] |
(x, A rectangle with the top-level corner of (x, HAL2. |
(x, |
Any additional per-stream cropping must be done to
maximize the final pixel area of the stream. For example, Conversely, The output streams must maintain square pixels at all times, |
||
| sensor | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int64 [public] |
Duration each pixel is exposed to
light. If the sensor can't expose this exact duration, |
nanoseconds |
android. |
1/ |
|
| android. |
int64 [public] | Duration from start of frame exposure to start of next frame exposure | nanoseconds |
see android. |
Exposure time has priority, |
|
| android. |
int32 [public] |
Gain applied to image data. If the sensor can't apply this exact gain, |
ISO arithmetic units |
android. |
ISO 12232:2006 REI method | |
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32
x
4
[public as rectangle]
Four ints defining the active pixel rectangle
|
Area of raw data which corresponds to only
active pixels; smaller or equal to
pixelArraySize. |
xmin, |
|||
| android. |
int32
x
2
[public]
Range of supported sensitivities
|
Range of valid sensitivities |
Min <= 100, |
|||
| android. |
byte
[system]
|
Arrangement of color filters on sensor;
represents the colors in the top-left 2x2 section of
the sensor, |
||||
| android. |
int64
x
2
[public]
nanoseconds
|
Range of valid exposure times |
Min <= 100e3 (100 us), |
|||
| android. |
int64 [public] | Maximum possible frame duration (minimum frame rate) | nanoseconds | >= 30e9 |
Minimum duration is a function of resolution, |
|
| android. |
float
x
2
[public]
width x height in millimeters
|
The physical dimensions of the full pixel array | Needed for FOV calculation for old API | |||
| android. |
int32 x 2 [system as size] |
Dimensions of full pixel array, |
Maximum output resolution for raw format must
match this in
android. |
|||
| android. |
int32 [system] | Maximum raw value output by sensor | > 1024 (10-bit output) | Defines sensor bit depth (10-14 bits is expected) | ||
| android. |
rational [public] | Gain factor from electrons to raw units when ISO=100 | ||||
| android. |
int32
x
4
[system]
2x2 raw count block
|
A fixed black level offset for each of the Bayer mosaic channels | >= 0 each |
As per DNG BlackLevelRepeatDim / |
||
| android. |
rational
x
9
[system]
3x3 matrix in row-major-order
|
Per-device calibration on top of color space transform 1 | ||||
| android. |
rational
x
9
[system]
3x3 matrix in row-major-order
|
Per-device calibration on top of color space transform 2 | ||||
| android. |
rational
x
9
[system]
3x3 matrix in row-major-order
|
Linear mapping from XYZ (D50) color space to
reference linear sensor color, |
Use as follows XYZ = inv(transform) * clip( (raw -
black level(raw) ) / |
|||
| android. |
rational
x
9
[system]
3x3 matrix in row-major-order
|
Linear mapping from XYZ (D50) color space to
reference linear sensor color, |
||||
| android. |
rational
x
9
[system]
3x3 matrix in row-major-order
|
Used by DNG for better WB adaptation | ||||
| android. |
rational
x
9
[system]
3x3 matrix in row-major-order
|
Used by DNG for better WB adaptation | ||||
| android. |
int32 [public] | Maximum sensitivity that is implemented purely through analog gain |
For android. |
|||
| android. |
float
x
2
[system]
float constants A,
|
Estimation of sensor noise characteristics |
var(raw pixel value) = electrons * (baseGainFactor
* iso/ |
A represents sensor read noise before analog
amplification; B represents noise from A/ |
||
| android. |
int32 [public] |
Clockwise angle through which the output
image needs to be rotated to be upright on the device
screen in its native orientation. |
degrees clockwise rotation, |
0, |
||
| android. |
byte
[system]
|
Light source used to define transform 1 | [EXIF LightSource tag] Must all these be supported? Need CCT for each! | |||
| android. |
byte [system] | Light source used to define transform 2 | Same as illuminant 1 | |||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int64 [public] |
Duration each pixel is exposed to
light. If the sensor can't expose this exact duration, |
nanoseconds |
android. |
1/ |
|
| android. |
int64 [public] | Duration from start of frame exposure to start of next frame exposure | nanoseconds |
see android. |
Exposure time has priority, |
|
| android. |
int32 [public] |
Gain applied to image data. If the sensor can't apply this exact gain, |
ISO arithmetic units |
android. |
ISO 12232:2006 REI method | |
| android. |
int64 [public] | Time at start of exposure of first row | nanoseconds | > 0 |
Monotonic, |
|
| android. |
float [public] |
The temperature of the sensor, The thermal diode being queried should be inside the sensor PCB, |
celsius |
Optional. |
||
| shading | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[system]
|
Quality of lens shading correction applied to the image data | ||||
| android. |
byte [system] | Control the amount of shading correction applied to the images | unitless: 1-10; 10 is full shading compensation | |||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[system]
|
Quality of lens shading correction applied to the image data | ||||
| statistics | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public]
|
State of the face detector unit |
android. |
Whether face detection is enabled, |
||
| android. |
byte
[system as boolean]
|
Operating mode for histogram generation | ||||
| android. |
byte
[system as boolean]
|
Operating mode for sharpness map generation | ||||
| android. |
byte
[public]
|
Whether the HAL needs to output the lens shading map in output result metadata |
When set to ON, |
|||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
x
n
[public]
List of enums from android.
|
Which face detection modes are available, |
List of enum: OFF SIMPLE FULL |
OFF means face detection is disabled, SIMPLE means the device supports the android. FULL means the device additionally supports the android. |
||
| android. |
int32 [system] | Number of histogram buckets supported | >= 64 | |||
| android. |
int32 [public] | Maximum number of simultaneously detectable faces |
>= 4 if availableFaceDetectionModes lists
modes besides OFF, |
|||
| android. |
int32 [system] | Maximum value possible for a histogram bucket | ||||
| android. |
int32 [system] |
Maximum value possible for a sharpness map
region. |
||||
| android. |
int32
x
2
[system as size]
width x height
|
Dimensions of the sharpness map | Must be at least 32 x 32 | |||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public]
|
State of the face detector unit |
android. |
Whether face detection is enabled, |
||
| android. |
int32 x n [public] | List of unique IDs for detected faces | Only available if faceDetectMode == FULL | |||
| android. |
int32
x
n x 6
[public]
(leftEyeX,
|
List of landmarks for detected faces | Only available if faceDetectMode == FULL | |||
| android. |
int32
x
n x 4
[public as rectangle]
(xmin,
|
List of the bounding rectangles for detected faces | Only available if faceDetectMode != OFF | |||
| android. |
byte x n [public] | List of the face confidence scores for detected faces | 1-100 |
Only available if faceDetectMode != OFF. |
||
| android. |
int32
x
n x 3
[system]
count of pixels for each color channel that fall into each histogram bucket,
|
A 3-channel histogram based on the raw sensor data |
The k'th bucket (0-based) covers the input range
(with w = android. |
|||
| android. |
byte
[system as boolean]
|
Operating mode for histogram generation | ||||
| android. |
int32
x
n x m x 3
[system]
estimated sharpness for each region of the input image.
|
A 3-channel sharpness map, |
If only a monochrome sharpness map is supported, |
|||
| android. |
byte
[system as boolean]
|
Operating mode for sharpness map generation | ||||
| android. |
float
x
4 x n x m
[public]
2D array of float gain factors per channel to correct lens shading
|
A low-resolution map of lens shading, |
Each gain factor is >= 1 |
Assume bilinear interpolation of map. When android. |
||
| android. |
float
x
4
[public]
A 1D array of floats for 4 color channel gains
|
The best-fit color channel gains calculated by the HAL's statistics units for the current output frame |
This may be different than the gains used for this frame, The 4 channel gains are defined in Bayer domain, This value should always be calculated by the AWB block, |
|||
| android. |
rational
x
3 x 3
[public]
3x3 rational matrix in row-major order
|
The best-fit color transform matrix estimate calculated by the HAL's statistics units for the current output frame |
The HAL must provide the estimate from its
statistics unit on the white balance transforms to use
for the next frame. These estimates must be provided for all frames, This value should always be calculated by the AWB block, |
|||
| android. |
byte
[public]
|
The HAL estimated scene illumination lighting frequency | Report NONE if there doesn't appear to be flickering illumination | |||
| tonemap | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
float
x
n x 2
[public]
1D array of float pairs (P_
|
Table mapping blue input values to output values |
same as android. |
same as android. |
Tonemapping / See android. |
|
| android. |
float
x
n x 2
[public]
1D array of float pairs (P_
|
Table mapping green input values to output values |
same as android. |
same as android. |
Tonemapping / See android. |
|
| android. |
float
x
n x 2
[public]
1D array of float pairs (P_
|
Table mapping red input values to output values |
0-1 on input and output coordinates. |
Tonemapping / Since the input and output ranges may vary depending on the camera pipeline, The curve should be linearly interpolated between the defined points. |
||
| android. |
byte
[public]
|
|||||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
int32 [public] | Maximum number of supported points in the tonemap curve | >= 128 | |||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
float
x
n x 2
[public]
1D array of float pairs (P_
|
Table mapping blue input values to output values |
same as android. |
same as android. |
Tonemapping / See android. |
|
| android. |
float
x
n x 2
[public]
1D array of float pairs (P_
|
Table mapping green input values to output values |
same as android. |
same as android. |
Tonemapping / See android. |
|
| android. |
float
x
n x 2
[public]
1D array of float pairs (P_
|
Table mapping red input values to output values |
0-1 on input and output coordinates. |
Tonemapping / Since the input and output ranges may vary depending on the camera pipeline, The curve should be linearly interpolated between the defined points. |
||
| android. |
byte
[public]
|
|||||
| led | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[hidden as boolean]
|
This LED is nominally used to indicate to the user
that the camera is powered on and may be streaming images back to the
Application Processor. In particular, The LED *may* be off if a trusted application is using the data that doesn't violate the above rules. |
||||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[hidden as boolean]
|
This LED is nominally used to indicate to the user
that the camera is powered on and may be streaming images back to the
Application Processor. In particular, The LED *may* be off if a trusted application is using the data that doesn't violate the above rules. |
||||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
x
n
[hidden]
|
A list of camera LEDs that are available on this system. |
||||
| info | ||||||
| static | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public]
|
The camera 3 HAL device can implement one of two possible
operational modes; limited and full. For full details refer to "S3. |
Optional. |
|||
| blackLevel | ||||||
| controls | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public as boolean]
|
Whether black-level compensation is locked
to its current values, |
When set to ON, Since changes to certain capture parameters (such as exposure time) may require resetting of black level compensation, The black level locking must happen at the sensor, |
|||
| dynamic | ||||||
| Property Name | Type | Description | Units | Range | Notes | Tags |
| android. |
byte
[public as boolean]
|
Whether black-level compensation is locked
to its current values, |
When set to ON, Since changes to certain capture parameters (such as exposure time) may require resetting of black level compensation, The black level locking must happen at the sensor, |


Vortexion Quality Equipment
|
TYPE C.B.L.
|
|
TYPE C.B.L.
|
Here is a versatile stereophonic recorder which has no equal in its price group.
IT CAN record monaurally or stereophonically with its own mixed inputs
from Gram, Radio or other sources and from high grade low impedance
balanced line microphones. With good
microphones, etc., the result is a suitable master for disc
manufacturers. "Before and After" monitoring is provided together with
adjustable metered bias for perfection.
IT CAN also make a recording on one track and then transfer it to the
other track while measuring and listening to it and adding one or two
more signals also metered.
IT CAN repeat the process and transfer this combined signal to the
first track with one or two more signals. Composers use it for this
purpose. One track may have music or commentary
and the other cueing signals or commentary and either may be altered
without the other.
IT CAN playback stereophonically or monaurally with its own amplifiers of 3 watts each.
Speeds 1¼/3¾/7½ i.p.s. Price: £172 0 0
Speeds 3¾/7½/15 i.p.s. Price: £180 0 0
The Vortexion W.V.B. is a high quality monaural machine with "Before
and After" monitoring. The recording inputs are a high sensitivity
socket for moving coil or ribbon microphone
and a high impedance socket for radio, etc., either of which can be
selected by a switch. Superimposing and echo work can be done and the
playback has reserve gain for abnormal
requirements. This model cannot be converted for stereo playback, but
it is a thoroughly reliable machine for the engineer specialising on
monaural work.
Speeds 1¼/3¾/7½ i.p.s. Price: £115 10 0
Speeds 3¾/7½/15 i.p.s. Price: £128 0 0
The Vortexion W.V.A. is a monaural machine which has a performance
equal in sound quality to the other models. It possesses all the
features of the W.V.B. except for "Before and
After" monitoring, Dubbing and Echoes. The recording being made can be
heard on the internal loudspeaker as in the W.V.B. and C.B.L. The
controls are uncomplicated.
Speeds 1¼/3¾/7½ i.p.s. Price: £96 7 0
Speeds 3¾/7½/15 i.p.s. Price: £107 3 0
All tape recorders have adjustable bias controls, low impedance mic.
inputs for unlimited lengths of cable, highly accurate position
indicators and meters to measure recording level and
bias.
VORTEXION LIMITED
257-263 The Broadway, Wimbledon, London, S.W.19
Telephones: LIBerty 2814 and 6242-3. Telegrams: " Vortexion, Wimble, London "


I had been suffering through a particularly annoying cough the last week or so. Dubbed the 'death cough' by my friends, I of course decided to self medicate instead of going to a doctor as university life was a bit too hectic to spare a few hours for a clinic. One night, I was wandering around the ground floor in my dorm asking if anyone had any cough syrup. One girl said she had some stuff she hadn't finished, tossed me a bottle, and told me to keep it.
Reading the prescription info on the outside, I began to realize I may have come across something interesting. 'Codeine Linctus, 5mg/ml' it read. Checking the indicators on the side, a little over 40ml was left. Having experience with codeine/apap pills and cold water extractions from a troublesome wisdom tooth removal, although at lower dosage levels, the concept of a sweetened codeine mixture with no liver worries was most intriguing.
The next day I went the gym at about 6pm, trying to get my body familiar with physical activity again, as the cough had killed my appetite and energy for the last week or so. After a rather lackluster session, I returned and ate a medium-sized meal at approximately 8pm. At 9pm I decided to consume the codeine syrup.
21:00- 40ml of syrup ingested, containing approximately 200mg codeine.
21:03- The death cough returns, and my body is wracked with terrible coughs of historic proportions. I decide to consume a good slug (30ml) of some generic cough syrup containing 15mg dxm, 30mg pseudoephidrine hcl, and 200mg guafenesin per 5ml.
21:10- First hint of liftoff? Maybe it's just placebo. I've had codeine hit me this fast before though, but that was on a far more empty stomach.
21:15- Started to get bored surfing the web. Note that approximately 2ml of codeine linctus remains in the bottle. Start getting weird ideas, decide to rail the rest. 1ml bumps in each nostril, there we go. Little to no burn, minor numbness, and the most delicious drip ever. Absolutely bizarre, it tasted fabulous. I really donít know how effective this was, but it was fun.
21:30- Noted a tendency to 'zone out' a bit more. Still not euphoric. Then mom phones, asking if the cough is alright. I end up talking for about 20 minutes, enjoying myself quite a bit. This indicates to me that it must be kicking in a bit, normally conversations tend toward the 'yep, ok, sounds good' variety.
21:50- Got off the phone. Realize I'm feeling a bit of a buzz, still not 200mg worth in my opinion. Perhaps the syrup has sat around for a while and started to degrade in potency?
22:15- A friend shows up unexpectedly and asks for help with her homework. I've resigned myself to a minor buzz at this point, and crank off some math for a while. I find myself calm and doing quite well solving these problems; I could get to really like the opiates I think. Only problem is that I find myself itching whenever I lose focus on the problem, a minor distraction.
22:45- Homework all done, I decide to play some videogames. I don't really feel like sleeping, as the codeine isn't quite knocking me out like I planned.
23:30- Wow. There we go. I zone out completely for an extended period on the computer, and as soon as I stand up I realize that I'm rather 'there'. Lucid mind, thinking about nothing in particular but focus, when required, is easily obtained. Calm exterior, with a warm fuzzy body feeling. Minor balance/coordination issues, similar to drunkenness, only without the idiocy and toxic body feeling. Zero nausea or itching, however thinking back I believe if the thought of itching had come to mind, I would have scratched up a storm.
23:45- I decide to go to bed listening to some music. I feel amazingly comfortable, and the scene in Trainspotting where Renton sinks into the floor comes to mind, without all the pesky overdose issues. I feel completely enveloped, completely calm.
I woke up the next day after approximately seven hours of sleep, a length that would normally leave me cranky and lethargic. Today I felt amazing however, a serene afterglow of subtle energy and focus. In a great mood, I headed to class.
This was by far my best codeine experience. Worryingly good. I currently have a desire to explore others in the opiate family. Here's to keeping it strictly weekends and hubris.
Experience Reports are the writings and opinions of the individual authors who submit them.
Some of the activities described are dangerous and/or illegal and none are recommended by Erowid.


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Lock-in Period
Type
Minimum Deposit Term
Type
And thereafter, In Multiples of
Type
Maximum Deposit Term
Type
Is For Pre-mature Closure?
Apply penal interest (less)
On
Is Withhold tax applicable?
Tax Group


Authenticating via DataOne API
Matt Jones provides a nice dataone
package to handle accessing and posting data to DataOne nodes such as the KNB from R. Uploading files through the API requires authentication, which in turn requires a certificate from CILogin. As this process proved a bit tricky to me, I add some documentation here. I am using a Ubuntu (13.04) system, so the procedure might differ slightly for other systems.
Select authentication credentials. I used Google as an OpenID provider.
This asked me to download a file named
shibCILaunchGSCA.jnlp
. This is a java webstart application and is suppsed to launch in the browser; a feature many operating systems apparently disabled due to security concerns. One could reconfigure the browser settings to execute this file type (using javaws), or simply download and run javaws manually in the command line:
$ javaws shibCILaunchGSCA.jnlp
My process was slightly more troublesome as I had java-6-openjdk
javaws
installed as the default but needed the java-7
one to correspond to the rest of my setup… Also more complicated in that I downloaded shibCILaunchGSCA.jnlp
twice and first tried javaws
on the earlier download, which had become invalid when I created the second download. Words to the wise…
This should basically finish the authentication by installing a certificate in /tmp/x509up_u0
, where the R package will look for it. If you already have a file of that name in /tmp
it will use a different name and the R package may be confused. You can work around this (see #3) but better to use the default for simplicity.
At this point we can successfully upload data to DataOne nodes such as the KNB as illustrated in Matt’s tutorial.
Notes
This presupposes a working rJava
package, which can be tricky on Linux systems given the plethora of different flavors of Java. Though rJava
is provided as a Ubuntu binary (apt-get install r-cran-rjava
) the version is rather behind. Stackoverflow has some useful hints.
ToDo
- Should now be able to wrap the dataone API in
reml
in a similar way as we have done for figshare. - Might consider implementing the REST-based DataONE API calls directly through
RCurl
orhttr
to avoid the java issues. Will need to handle the certificate issues above regardless, though some steps can perhaps be wrapped into an R function…


In this scenario you can pick any of the tile templates and insert your own text and images to see what they look like. If you are sending a square template, make sure you make the tile smaller in Start by selecting it and pressing smaller. If you are sending a wide template, make sure you make the tile larger in Start by selecting it and pressing larger.
Select a template, fill in text and images, and configure branding
Images
Images can use
http:// - web images
appx:/// - images in the .appx package
ms-appdata:///local/ - images saved in the app's local storage
For more information, see the Image Protocols scenario. You can also copy your own
images to this app's local storage to test them in a notification.
You can use the following local files:
ms-appx:///images/graySquare.png
ms-appx:///images/redWide.png
ms-appx:///images/blueWide.png
Image #1
Image #2
Image #3
Image #4
Image #5
Image #6
Text
Optionally set a language (BCP47 tag) so Windows knows which font to use to display
the text:
Text Field #1
Text Field #2
Text Field #3
Text Field #4
Text Field #5
Text Field #6
Text Field #7
Text Field #8
Text Field #9
Text Field #10
Branding
Applications can choose to use different branding for each notification, which impacts
the layout of the template. If a logo or name is shown on the tile, some text fields
will not display in certain templates. For example, if you send a notification with
TileWideText06 with a logo, text fields 9 and 10 are clipped.
Logo - specified in the manifest (default if branding is omitted)
Name - specified in the manifest
None - doesn't show logo or name


{{ 'Currently no download in line to display, use the' | translate }} {{ 'Add' | translate }} {{ 'download button to start downloading files!' | translate }}
{{download.name}}
- {{download.fmtCompletedLength}} / {{download.fmtTotalLength}}
- {{download.downloadSpeed | bspeed}}
- {{getEta(download) | time}}
- {{download.fmtCompletedLength}} / {{download.fmtTotalLength}}
- {{download.status}}
- {{download.fmtTotalLength}}
- {{download.status}}
- {{download.fmtTotalLength}}
- {{download.status}}
- {{download.fmtTotalLength}}
- {{getErrorStatus(download.errorCode)}}
- {{download.fmtTotalLength}}
- {{getEta(download) | time}}
- {{download.fmtTotalLength}}
- {{download.fmtCompletedLength}}
- {{download.fmtDownloadSpeed}}
- {{download.fmtUploadSpeed}}
- {{download.fmtUploadLength}}
- {{download.connections}}{{download.numSeeders}}
- {{download.gid}}
- {{ '# of' | translate }} {{download.numPieces}}
- {{ 'Length' | translate }} {{download.fmtPieceLength}}
- {{download.dir}}


The sports world mocked the irony of the NCAA making Memphis star James Wiseman donate $11,500 to a charity for accepting money
by Scott Davis- The NCAA suspended the Memphis, Tennessee, basketball star James Wiseman for 12 games over allegations that he and his family accepted $11,500 from Memphis coach Penny Hardaway for "moving expenses" in 2017.
- The NCAA is also making Wiseman donate $11,500 to a charity of his choice.
- The sports world immediately mocked the NCAA for its punishment, saying there was irony in making an unpaid college athlete donate a large sum of money after his family accepted money two years ago.
- Visit Business Insider's homepage for more stories.
The NCAA on Wednesday suspended the Memphis, Tennessee, basketball star James Wiseman for 12 games over allegations that he and his family accepted money from head coach Penny Hardaway in 2017.
Wiseman, the potential No. 1 pick in the NBA draft in June, initially played after the NCAA's injunction, as the university pushed back against the NCAA. The school relented last week and ruled Wiseman ineligible.
The NCAA alleged that Wiseman and his family took $11,500 in "moving expenses" from Hardaway, who was not Memphis' head coach at the time, during Wiseman's junior year of high school.
In addition, the NCAA on Wednesday ruled that Wiseman must donate $11,500 to a charity of his choice.
The latter punishment was immediately mocked by the sports world for, well, obvious reasons.
Wiseman will be eligible to return to the floor in January.


In Config, we described how to associate a configuration file with your
microservice.
In this section we describe how that configuration can be used to customize the behavior or your REST resource
classes.
The most common usage for the configuration file is to reference values using the {@link oaj.config.vars.ConfigVar $C} variable in annotations.
For example, the {@link oajr.config.DefaultConfig} interface that defines the annotations that control the look-and-feel of
classes that extend from {@link oajr.servlet.BasicRestServlet} use several $C variables to externalize values:
| @Rest(
| ...
| // These are static files that are served up by the servlet under the specified sub-paths.
| // For example, "/servletPath/htdocs/javadoc.css" resolves to the file "[servlet-package]/htdocs/javadoc.css"
| // By default, we define static files through the external configuration file.
| staticFiles="$C{REST/staticFiles}"
| )
| // HTML-page specific settings
| @HtmlDocConfig(
|
| // Default page header contents.
| header={
| "
$RS{title}
", // Use @Rest(title)
| "
$RS{operationSummary,description}
", // Use either @RestOp(summary) or @Rest(description)
| "$C{REST/header}" // Extra header HTML defined in external config file.
| },
|
| // Default stylesheet to use for the page.
| // Can be overridden from external config file.
| // Default is DevOps look-and-feel (aka Depression look-and-feel).
| stylesheet="$C{REST/theme,servlet:/htdocs/themes/devops.css}",
|
| // Default contents to add to the  section of the HTML page.
| // Use it to add a favicon link to the page.
| head={
| "<link rel='icon' href='$U{$C{REST/favicon}}'/>"
| },
|
| // No default page footer contents.
| // Can be overridden from external config file.
| footer="$C{REST/footer}",
| ...
| )
| public interface BasicRestConfig {}
These values in turn are pulled from the external configuration file shown below.
Note that the configuration file can also contain $C variables.
| #=======================================================================================================================
| # REST settings
| #=======================================================================================================================
| [REST]
|
| # Mappings to folders containing static files.
| # Can be in the working directory or in the classpath.
| staticFiles = htdocs:files/htdocs
|
| # Stylesheet to use for HTML views.
| theme = servlet:/htdocs/themes/devops.css
|
| headerIcon = servlet:/htdocs/images/juneau.png
| headerLink = http://juneau.apache.org
| footerIcon = servlet:/htdocs/images/asf.png
| footerLink = http://www.apache.org
|
| favicon = $C{REST/headerIcon}
| header =
|
|
|
| footer =
|
|
|
Configuration files can also be accessed programmatically.
There are 3 primary ways of getting access to the config file:
- {@link oaj.microservice.Microservice#getConfig()}
Any initialization-time variables can be used.
- {@link oajr.RestContext#getConfig()}
Any initialization-time variables can be used.
| #----------------------------------
| # Configuration for MyHelloResource
| #----------------------------------
| [MyHelloResource]
| greeting = Hello world!
| #---------------------------------
| # Contents of MyHelloResource.java
| #---------------------------------
| @Rest(...)
| public class MyHelloResource extends BasicRestServlet {
| private String greeting;
|
| // Or access config file in servlet init method.
| @Override /* Servlet */
| public void init() {
| Config config = getContext().getConfig();
| this.greeting = config.getString("MyHelloResource/greeting");
| }
| }
Additional user-defined variables at the servlet level can be defined by adding a
{@link oajr.annotation.RestInit} hook method
and using the oajr.RestContext.Builder.vars(Class...) method.
-
{@link oajr.RestRequest#getConfig()}
- An instance method to access it from inside a REST method.
Any initialization-time or request-time variables can be used.
| #----------------------------------
| # Configuration for MyHelloResource
| #----------------------------------
| [MyHelloResource]
| greeting = Hello $RP{person}! // $RP is RequestPathVar
| localizedGreeting = $L{HelloMessage,$RP{person}} // $L is LocalizationVar with args
| #---------------------------------
| # Contents of MyHelloResource.java
| #---------------------------------
| @Rest(
| path="/hello",
| messages="nls/Messages",
| ...
| )
| public class MyHelloResource extends BasicRestServlet {
|
| /** Standard hello message. */
| @RestGet("/{person}")
| public String sayHello(RestRequest req) {
| return req.getConfig().getString("MyHelloResource/greeting");
| }
|
| /** Hello message in users language. */
| @RestGet("/localized/{person}")
| public String sayLocalizedHello(RestRequest req) {
| return req.getConfig().getString("MyHelloResource/localizedGreeting");
| }
| }
| #---------------------------------------
| # Contents of nls/Messages_en.properties
| #---------------------------------------
| MyHelloResource.HelloMessage = Hello {0}!
Additional user-defined variables can be defined at this level by overriding the
oajr.RestContext.Builder.vars(Class...) method.
That sayLocalizedHello() example might need some explanation since there's a lot going on there.
Here's what happens when an HTTP call is made to GET /hello/localized/Bob:
-
The HTTP call matches the /hello path on the MyHelloResource class.
-
The HTTP call matches the /localized/{person} path on the sayLocalizedHello() method.
-
The request attribute person gets assigned the value "Bob".
-
The call to req.getConfig().getString("MyHelloResource/localizedGreeting")
finds the value "$L{HelloMessage,$RP{person}}".
-
The arguments in the $L{} variable get resolved, resulting in "$L{HelloMessage,Bob}".
-
The $L{} variable gets resolved to the message "Hello {0}!" in the localized properties
file of the servlet based on the Accept-Language header on the request.
-
The arguments get replaced in the message resulting in "Hello Bob!".
-
The resulting message "Hello Bob!" is returned as a POJO to be serialized to whatever content
type was specified on the Accept header on the request.
This particular example is needlessly complex but it gives an idea of how variables can be used
recursively to produce sophisticated results


Serialize N
-minibatch SparseTensor
into an [N, 3]
Tensor
.
tf.compat.v1.io.serialize_many_sparse
tf.compat.v1.serialize_many_sparse( sp_input, name=None, out_type=tf.dtypes.string )
The SparseTensor
must have rank R
greater than 1, and the first dimension
is treated as the minibatch dimension. Elements of the SparseTensor
must be sorted in increasing order of this first dimension. The serialized
SparseTensor
objects going into each row of the output Tensor
will have
rank R-1
.
The minibatch size N
is extracted from sparse_shape[0]
.
sp_input
: The input rank R
SparseTensor
.name
: A name prefix for the returned tensors (optional).out_type
: The dtype
to use for serialization.A matrix (2-D Tensor
) with N
rows and 3
columns. Each column
represents serialized SparseTensor
's indices, values, and shape
(respectively).
TypeError
: If sp_input
is not a SparseTensor
.


- getGrade() - Method in interface ClassPeriod
-
Gets the Student's grade for a ClassPeriod
- getGrade() - Method in class Lab
-
Gets the Student's grade for a Lab
- getGrade() - Method in class Lecture
-
Gets the Student's grade for a Lecture
- getGrade() - Method in class Recitation
-
Gets the Student's grade for a Recitation
- getHours() - Method in interface ClassPeriod
-
Gets the hours of a ClassPeriod
- getHours() - Method in class Lab
-
Gets the hours of a Lab
- getHours() - Method in class Lecture
-
Gets the hours of a Lecture
- getHours() - Method in class Recitation
-
Gets the hours of a Recitation
- getLabs() - Method in class Student
-
Gets the labs the Student is taking
- getLectures() - Method in class Student
-
Gets the lectures the Student is taking
- getProfessor() - Method in interface ClassPeriod
-
Gets the Professor for a ClassPeriod
- getProfessor() - Method in class Lab
-
Gets the Professor for a Lab
- getProfessor() - Method in class Lecture
-
Gets the Professor for a Lecture
- getProfessor() - Method in class Recitation
-
Gets the Professor for a Recitation
- getRecitations() - Method in class Student
-
Gets the recitations the Student is taking
- getSubject() - Method in interface ClassPeriod
-
Gets the subject of a ClassPeriod
- getSubject() - Method in class Lab
-
Gets the subject of a Lab
- getSubject() - Method in class Lecture
-
Gets the subject of a Lecture
- getSubject() - Method in class Recitation
-
Gets the subject of a Recitation
- getTotalHours() - Method in class Student
-
Gets the number of hours the Student is taking


The holonomic gradient method (HGM, hgm) gives a way to evaluate normalization constants of unnormalized probability distributions by utilizing holonomic systems of differential or difference equations. The holonomic gradient descent (HGD, hgd) gives a method to find maximal likelihood estimates by utilizing the HGM.
| Version: | 1.17 |
| Depends: | R (≥ 2.6.0), deSolve |
| Published: | 2017-04-01 |
| Author: | Nobuki Takayama, Tamio Koyama, Tomonari Sei, Hiromasa Nakayama, Kenta Nishiyama |
| Maintainer: | Nobuki Takayama <takayama at math.kobe-u.ac.jp> |
| License: | GPL-2 |
| URL: | http://www.openxm.org |
| NeedsCompilation: | yes |
| CRAN checks: | hgm results |
| Reference manual: | hgm.pdf |
| Package source: | hgm_1.17.tar.gz |
| Windows binaries: | r-devel: hgm_1.17.zip, r-release: hgm_1.17.zip, r-oldrel: hgm_1.17.zip |
| OS X binaries: | r-release: hgm_1.17.tgz, r-oldrel: hgm_1.17.tgz |
| Old sources: | hgm archive |
Please use the canonical form https://CRAN.R-project.org/package=hgm to link to this page.


WITNESS LIST Higher Education Committee May 23, 2000-10:00A Interim Charge 5 On: Estrada, Joseph A. (Texas A&M University-College Station) Goode, Steven (Self) Jackson, David M. (Texas Association for Alternative Education) Kauffman, Albert (Self and Mexican American Legal Defense and Educational Fund) Powers, William (Self) Rodriguez, Lynn (Texas Higher Education Coordinating Board) Smisko, Ann (Texas Education Agency) Walker, Bruce (Self and Education-The University of Texas at Austin)


According to Google:
As of 2020, the Collatz conjecture has been checked by computer for all starting values up to 268 ≈ 2.95×1020. All initial values tested so far eventually end in the repeating cycle (4;2;1) of period 3.
This page was made just to break that record. As of
the conjecture has been checked up to which is 268 + .


Media queries are a standard way to optimize layouts for small screen sizes on the web. In the email world, though, there are some “small screen scenarios” where media queries aren’t supported (eg. some Gmail Apps) or only partially supported (eg. some Android device native mail apps).
{% header "h3", "Hybrid design" %}
Hybrid design uses inline-block
, max-width
, min-width
, and ghost tables stack columns without media queries while imposing a fixed, desktop width for Outlook.
In this example, the two columns will display side-by-side on wide, desktop displays and stack on top of each other in narrow, mobile displays. The promotional email template uses this technique in a few places.
{% header "h3", "Media queries" %}Once a hybrid baseline is set, media queries can be used to fine-tune a responsive email layout. Since columns are (hopefully) already stacked, media queries can be used to change the width and text alignment in small viewports.
| Class | Description |
|---|---|
| stack-column | Makes table columns 100% wide and stacks them in source order. |
| stack-column-center | Makes table columns 100% wide, stacks them in source order, and centers everything inside. |
Default desktop padding for email templates is 30px. Utility classes can be used to reduce spacing to 20px or remove padding on smaller viewports. Useful for tightening up email layouts on mobile.
| Class | Output |
|---|---|
| .sm-p-none | padding: 0; |
| .sm-pt-none | padding-top: 0; |
| .sm-pb-none | padding-bottom: 0; |
| .sm-pr-none | padding-right: 0; |
| .sm-pl-none | padding-left: 0; |
| .sm-py-none | padding-top: 0; padding-bottom: 0; |
| .sm-px-none | padding-right: 0; padding-left: 0; |
| .sm-p | padding: 20px; |
| .sm-pt | padding-top: 20px; |
| .sm-pb | padding-bottom: 20px; |
| .sm-pr | padding-right: 20px; |
| .sm-pl | padding-left: 20px; |
| .sm-py | padding-top: 20px; padding-bottom: 20px; |
| .sm-px | padding-right: 20px; padding-left: 20px; |
| .sm-mb | margin-bottom: 20px; |


|
{% if challenge.total_number_of_submissions_defined and challenge.exceeds_total_number_of_submissions_allowed %}
100% in at least 1 phase
{% elif challenge.total_number_of_submissions_defined and challenge.exceeds_70_percent_of_submission_allowed %}
>70% in at least 1 phase
{% elif challenge.total_number_of_submissions_defined %}
<70% in all phases
{% else %}
Total number of submissions not defined!
{% endif %}
|


Digital Photo repair and colorization, email your photo, 1 digital photo restored $19 to $29, 7 days to complete, colormyphotos@gmail.com


Teaching
Big Data Analytics
Statistical Models: Theory and Practice
Publications
Conference Papers
- 7. Wei Yuan, Hongzhi Yin, Fangzhao Wu, Shijie Zhang, Tieke He, Hao Wang. Federated Unlearning for On-Device Recommendation. WSDM'23
- 6. Wei Yuan, Quanjun Zhang, Tieke He, Chunrong Fang, Nguyen Quoc Viet Hung, Xiaodong Hao, Hongzhi Yin. CIRCLE: Continual Repair across Programming Languages. ISSTA'22
- 5. Wei Yuan, Hongzhi Yin, Tieke He, Tong Chen, Qiufeng Wang, Lizhen Cui. Unified Question Generation with Continual Lifelong Learning. WWW'22
- 4. Wei Yuan, Tieke He, Xinyu Dai. Improving Neural Question Generation using Deep Linguistic Representation. WWW'21
- 3. Chao Guo, Tieke He, Wei Yuan, Yue Guo, Rui Hao. Crowdsourced Requirements Generation for Automatic Testing via Knowledge Graph. ISSTA'20
- 2. Zichen Guo, Jiawei Liu, Tieke He, Zhuoyang Li, Peitian Zhangzhu. TauJud: Test Augmentation of Machine Learning in Judicial Documents. ISSTA'20
- 1. Yaguang Li, Han Su, Ugur Demiryurek, Bolong Zheng, Tieke He, Cyrus Shahabi. PaRE: A System for Personalized Route Guidance. WWW'17
Journal Papers
- 4. Xin Chen, He Jiang, Xiaochen Li, Liming Nie, Dongjin Yu, Tieke He, Zhenyu Chen. A Systemic Framework for Crowdsourced Test Report Quality Assessment. EMSE (2020)
- 3. Tieke He, Lian Hao, Zemin Qin, Zhenyu Chen, Bin Luo. PTM: A Topic Model for the Inferring of the Penalty. JCST (2018)
- 2. Tieke He, Zhenyu Chen, Jia Liu, Xiaofang Zhou, Xingzhong Du, Weiqing Wang. An Empirical Study on User-topic Rating Based Collaborative Filtering Methods. WWWJ (2017)
- 1. Tieke He, Hongzhi Yin, Zhenyu Chen, Xiaofang Zhou, Shazia W. Sadiq, Bin Luo. A Spatial-Temporal Topic Model for the Semantic Annotation of POIs in LBSNs. TIST (2016)
Suggested Readings
The Three Golden Rules for Successful Scientific Research
Ten Simple Rules to Becoming a Principal Investigator
Beng Chin Ooi Speaks Out on Building a Strong Database Group
A Letter to the Lab Members from PU
Efficient Reading of Paper in Science and Technology
Some modest advice for graduate students
How to Succeed in Graduate School
How to do Research At the MIT AI Lab
Useful Things to Know About Ph.D Thesis Research


My Thoughts on Sports
Sports requires physical exercise. It opens up one's lungs and enhances the body to become more flexible, agile and reactive. Despite all the physical advantages, being involved in a sport is also so great for your brain and personality.
Sport is a competition where you contend with the opposition. You need to assess their moves and make quick decisions, improving your mental ability. Thinking quickly and responding in the correct manner has conclusive impact on a sportsperson's brain.
My Gaelic Football Background
- I can still remember the first day I set foot on my local football pitch in Kilmurry at the age of eight years old.
- I instantly fell in love with the sport and have been playing it ever since.
- My passion for Gaelic football has lead me to create many meaningful friendships.
- I believe I have grown and matured in many ways due to my dedication to football.
- My favourite football player is Daniel Goulding. He was a big influence on me as a young footballer and is a great idol for future aspiring county players.
Daniel Goulding
Soccer
It took a couple of years into my sporting career to finally begin playing soccer and I think it is safe to say that I haven't looked back since. It is a sport that I grew in to as I began to become more and more intersted in the Premier League. At the age of nineteen years old, I am a fully fledged Chelsea supporter and haven't missed watching one of their matches for the past two consecutive seasons.
My favourite soccer players
- Eden Hazard
- Michy Batshuayi
- Cristiano Ronaldo
- Lionel Messi
- Callum Hudson-Odoi
Eden Hazard
Click here to read an article on the mental benefits of sports!


Spring 2021
Due to the ongoing COVID-19 pandemic, the AGNT seminar will meeting virtually.
For security reasons, meeting info will be shared via the group's Zulip server. If you want to join the Zulip server, or want the meeting information for a particular talk, contact Alex Duncan.
| Date | Speaker | Title | Host |
| Friday, Jan 15 2:30pm - 3:30pm |
Frank Thorne University of South Carolina |
An Overview of Counting Number Fields | (local) |
| Friday, Jan 22 2:30pm - 3:30pm |
Alexander Duncan University of South Carolina |
Cremona groups and representation dimension | (local) |
| Friday, Jan 29 2:30pm - 3:30pm |
Michael Filaseta University of South Carolina |
Old and new information on digitally delicate primes | (local) |
| Friday, Feb 5 2:30pm - 3:30pm |
Matthew Ballard University of South Carolina |
An equivariant Betti table I'd like to compute without Macaulay2 | (local) |
| Friday, Feb 12 2:30pm - 3:30pm |
Keller VandeBogert University of South Carolina |
Cellular Resolutions for Monomial Ideals | (local) |
| Friday, Feb 19 3:30pm - 4:30pm |
Michael Filaseta University of South Carolina |
On a dense universal Hilbert set | (local) |
| Friday, Mar 5 2:30pm - 3:30pm |
Patrick Lank University of South Carolina |
Line Bundle-Valued Quadratic Forms | (local) |
| Friday, Mar 19 3:30pm - 4:30pm |
Joshua Cooper and Michael Filaseta University of South Carolina |
Number theoretic problems arising from a graph theoretic investigation | (local) |
| Friday, Apr 9 3:30pm - 4:30pm |
Bailey Heath University of South Carolina |
Affine Group Schemes | (local) |
| Friday, Apr 16 3:30pm - 4:30pm |
Jonathan Smith University of South Carolina |
An Introduction to Weil Divisors | (local) |
| Friday, Apr 23 3:30pm - 4:30pm |
Ning Ma SUNY Buffalo |
Generalizations of Alladi's formula for arithmetical semigroups | (Shaoyun Yi) |
| Friday, Apr 30 3:30pm - 4:30pm |
Demmas Salim University of South Carolina |
TBA | (local) |
Abstracts
Matthew Ballard - An equivariant Betti table I'd like to compute without Macaulay2
I'll tell you what the resolution is and hopefully convince you why it matters. Maybe you'll tell me it's an easy consequence of Kempf's geometric method.
Joshua Cooper and Michael Filaseta - Number theoretic problems arising from a graph theoretic investigation
The two speakers will take turns addressing results related to graphs which can be drawn on a plane (not necessarily planar graphs - the edges of ours can cross) in such a way that all the edges have the same length. We discuss how some natural Diophantine questions arise in connection with the venerable Hadwiger-Nelson Problem, aka “the chromatic number of the plane” -- questions which can be resolved by elementary applications of Galois theory. The background for Galois theory is easy enough to be explained during the talk. As an example, we will find all solutions to the equation $\cos( \pi x ) + \cos( \pi y ) = 1/2$ where $x$ and $y$ are rational numbers. This is joint work with Sarah (Kaylee) Weatherspoon.
Alexander Duncan - Cremona groups and representation dimension
The Cremona group of rank n is the group of birational automorphisms of n-dimensional projective space. Alternatively, the Cremona group is the group of automorphisms of a purely transcendental extension. The Cremona group is famously huge and cannot be embedded in any matrix group when n is greater than one. However, their finite subgroups are much more manageable. I discuss upper and lower bounds on the complexity of finite subgroups of Cremona groups via representation theory. This is joint work with Christian Urech.
Michael Filaseta - Old and new information on digitally delicate primes
The very oldest information is that Murray Klamkin posed the problem in a 1978 issue of Mathematics Magazine: "Does there exist any prime number such that if any digit (in base 10) is changed to any other digit, the resulting number is always composite?" So people typed code into their punch cards and fed them through a computer card reader to find some examples. Such primes exist (the smallest one is 294001) and are called digitally delicate primes. We will discuss results by Paul Erdos, by Terence Tao, and by Jackson Hopper and Paul Pollack. Then we will go into more recent work of the speaker with Jacob Juillerat and Jeremiah Southwick. The most recent work, just completed, is with Jacob.
Michael Filaseta - On a dense universal Hilbert set
A universal Hilbert set is an infinite set $S$ of integers having the property that for every $F(x,y)$ in $\mathbb{Z}[x,y]$, which is irreducible in $\mathbb{Q}[x,y]$ and of degree $\geq 0$ in $x$, we have that for all but finitely many $y_0$ in $S$, the polynomial $F(x,y_0)$ is irreducible in $\mathbb{Q}[x]$. The existence of universal Hilbert sets is due to P. C. Gilmore and A. Robinson in 1955, and since then a number of explicit examples have been given. In this talk, we discuss a connection between universal Hilbert sets and Siegel's Lemma on the finiteness of integral points on a curve of genus at least 1, and explain how a result of K. Ford (2008) implies the existence of a universal Hilbert set S that includes almost all integers and then some. This is joint work with Robert Wilcox.
Bailey Heath - Affine Group Schemes
There are many ways to construct a group from a ring R, such as the additive group $(R, +)$, the multiplicative group $R^{\times}$, and matrix groups such as the general and special linear groups. In this talk, we generalize these constructions by discussing a special class of group functors known as affine group schemes. We then explore representations of affine group schemes via algebras, discuss a special case of Yoneda's Lemma, and use this lemma and a fresh perspective on groups to illustrate the relationship between affine group schemes and Hopf algebras. This talk only assumes elementary group and ring theory, so we hope for it to be accessible and informative for all!
Patrick Lank - Line Bundle-Valued Quadratic Forms
Within this talk, we will introduce what are called line bundle-valued quadratic forms over schemes and cover a few examples. It will be shown that many familiar constructions from the theory of quadratic forms over rings and linear algebra generalize to the category of schemes. Many of these ideas are applicable to vector bundles over such an object, and this is where much of the talk will take place.
Ning Ma - Generalizations of Alladi's formula for arithmetical semigroups
In this talk, we will discuss a general version of Alladi’s formula with Dirichlet convolution holds for arithmetical semigroups satisfying Axiom $A$ or Axiom $A^\sharp$. As applications, we apply our main results to certain semigroups coming from algebraic number theory, arithmetical geometry and graph theory. This is a joint work with Lian Duan and Shaoyun Yi.
Jonathan Smith - An Introduction to Weil Divisors
Given a variety , we can associate to it a group of Weil divisors, namely, the free abelian group generated by the irreducible closed subvarieties of codimension one. The divisor class group is then constructed as the quotient of this group by the subgroup of principal divisors, and this class group is an interesting and subtle invariant of a variety. Though the majority of the talk will deal with Weil divisors on curves, I intend to briefly elucidate the connection between the divisor class group on schemes and the familiar ideal class group of a number field within the field of algebraic number theory. If time permits, I will end the talk with an example in which a subgroup of the divisor class group closely corresponds to the group structure on the closed points of a particular elliptic curve. The majority of the information contained in the talk is taken directly from section 2.6 of Hartshorne’s “Algebraic Geometry.”
Frank Thorne - An Overview of Counting Number Fields
How many number fields are there? Infinitely many -- but if you fix the degree and Galois group, and bound the discriminant, then the answer is known to be finite, and a conjecture of Malle predicts how fast this number grows with the discriminant.
I will first explain the question and give some basic examples, and then explain what Malle's conjecture says. I will then give an overview of some progress (much of it quite recent) towards Malle's conjecture by a variety of methods.
Keller VandeBogert - Cellular Resolutions for Monomial Ideals
Minimal free resolutions of monomial ideals have been an active area of study for many decades now. In the 90's, Bayer and Sturmfels considered monomial ideals whose minimal free resolutions are supported on so-called cellular complexes. It turns out that this property is quite special: in general, there exist monomial ideals whose minimal free resolution cannot be supported even on a CW-complex. In this talk, we will discuss some recent results on the cellularity of certain classes of "rainbow" monomial ideals, including a characterization of when such ideals have linear minimal free resolutions. This yields applications to polarizations of graded Artinian ideals and, after specialization, a large class of equigenerated squarefree monomial ideals admitting cellular resolutions. Much of this work is joint with Ayah Almousa.


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F-35 unit from Utah base begins deployment to Middle East
by The Associated PressHILL AIR FORCE BASE, Utah — Another Hill Air Force Base squadron equipped with F-35 fighters has left on a combat deployment for the Middle East.
The Standard-Examiner reports that the 34th Fighter Squadron with personnel drawn from active-duty and reserve units at Hill left recently for Al Dhafra Air Base, in the United Arab Emirates.
Col. Steven Behmer, commander of the 388th Fighter Wing, said the squadron consists of pilots and other personnel from the 34th Fighter Squadron and from a reserve unit, the 466th Fighter Squadron.
Personnel and jets from Hill’s 4th Fighter Squadron returned recently from a six-month deployment to the same region.
The Associated Press


Sarah is a security architect based in Melbourne, Australia who has previously worked in New Zealand and Europe and has a wealth of experience in technology working across a range of industry sectors. With a background in network and infrastructure engineering, Sarah brings deep technical knowledge to her work. She also has a penchant for cloud native technologies.
Sarah is an experienced public speaker and has presented on a range of IT security and technology topics at industry events both nationally and internationally (BSides Las Vegas, The Diana Initiative, Kiwicon, PyCon AU, Container Camp AU/London, BSides Ottawa, BSides Perth, DevSecCon Boston, CHCon, KubeCon, BSides San Francisco). She is an active supporter of both local and international security and cloud native communities.
Gladys Rodriguez is a Principal Cybersecurity Consultant with over 25 years in the Information Technology field.
Gladys' early Information Technology career started as a programmer using languages like C++ and Pascal.
While working for a communication company, Gladys taught a class about using Office and after a student
came to her very happy about what he was able to do with what he learned, Gladys knew that she loved helping
people learn to use technology to accomplish awesome things, so her career moved to
Network Engineers and Administration of Windows NT environments.
After several years as an Engineer, Manager, Director in the field,
Gladys started a minority-owned company to support Legal and Government Organizations.
After ten years owning and managing her company, she saw opportunities to move to Microsoft and focus on what
she loved the most: helping customers to use technology to accomplish amazing things.
During the last thirteen years at Microsoft, Gladys has provided architect,
consulting and support services to financial, health and government customers in the areas of identity,
configuration management, performance and security. In the last few years, her focus has been helping
customers develop end-to-end security strategy that uses Zero Trust, security operations center modernization and
threat protection as the foundation.
Gladys loves to see customer's eyes light up because they realize what is possible.
Mark Simos is Lead Architect for the Microsoft Cybersecurity Solutions Group where he is part of a group of cybersecurity experts, former CISOs, and former regulators who provide advice and guidance on cybersecurity strategy and technology.
Mark and his colleagues help organizations meet their cybersecurity and digital transformation goals by leveraging a deep pool of personal experience, lessons learned from cybersecurity incident investigations, and from Microsoft’s experience protecting and operating our hyper-scale cloud services.
Mark is a recognized expert in security with real-world experience delivering solutions to detect and mitigate cybersecurity threats. He has presented numerous conferences including Black Hat USA, RSA Conference, Gartner Security & Risk Management, Microsoft BlueHat, Microsoft Ignite, and Financial Executives International. Mark leads the development of cybersecurity reference architectures, best practices, reference strategies, prescriptive roadmaps, and other guidance to help customers rapidly secure their organizations in the digital age.


As we define objects in the console, we are actually changing the workspace. You can see all the variables saved in your workspace by typing:
ls()
#> [1] "a" "b" "c" "img_path" "murders"
In RStudio, the Environment tab shows the values:
We should see a
, b
and c
.
If you try to recover the value of a variable that is not in your workspace, you receive an error. For example, if you type x
you will receive the following message: Error: object 'x' not found
.
If you want to save memory spaces in workspace, you can use rm()
function to remove variable in your workspace.
# Assign sample variables
a <- "Happy R Coding"
b <- iris$Sepal.Length
name <- c("Jongjin", "Kim")
# Look up the variables in the workspace.
ls()
# Create new variable called x and assign log(8, base=2).
x <-
# Look up the variables in the workspace after assigning x.
print("workspace after creating x")
ls()
# Remove a variable called 'name' in a workspace
rm(_____)
# Look up the variables in the workspace after assigning x.
print("workspace after removing name")
ls()
# Assign sample variables
a <- "Happy R Coding"
b <- iris$Sepal.Length
name <- c("Jongjin", "Kim")
# Look up the variables in the workspace.
ls()
# Create new variable called x and assign log(8, base=2).
x <- log(8, base=2)
# Look up the variables in the workspace after assigning x.
print("workspace after creating x")
ls()
# Remove variable name in a workspace
rm(name)
# Look up the variables in the workspace after assigning x.
print("workspace after removing name")
ls()
test_object("x", undefined_msg = "Make sure to define a variable `x`.",
incorrect_msg = "Make sure that you assign the correct value to `x`.")
test_output_contains("ls()", incorrect_msg = "Make sure that you type the commamnd ls()")
test_output_contains("rm(name)", incorrect_msg = "Make sure that you remove name from your workspace.")
success_msg("Great! Head over to the next exercise.")