SQL is relatively simple compared to other programming languages, but it is still a complete set of programming language, so there is no essential difference between parsing SQL grammar and parsing other languages (Java, C and Go, etc.).
The parsing process can be divided into lexical parsing and syntactic parsing. Lexical parser is used to divide SQL into indivisible atomic signs, i.e., Token. According to the dictionary provided by different database dialect, it is categorized into keyword, expression, literal and operator. SQL is then converted into abstract syntax tree by syntactic parser.
For example, the following SQL:
SELECT id, name FROM t_user WHERE status = 'ACTIVE' AND age > 18
Its AST(Abstract Syntax Tree) after parsing is as:
To better understand, the Token of abstract syntax tree keywords is shown in green; that of variables is shown in red; what’s to be further divided is shown in grey.
At last, through traversing the abstract syntax tree, the context needed by sharding is extracted and the place that may need to be rewritten is also marked out. Parsing context for the use of sharding includes select items, table information, sharding conditions, auto-increment primary key information, Order By information, Group By information, and pagination information (Limit, Rownum and Top). One-time parsing process of SQL is irreversible, each Token is parsed according to the original order of SQL with a high performance. Considering similarities and differences between SQL of all kinds of database dialect, SQL dialect dictionaries of different types of databases are provided in the parsing module.
As the core of database sharding and table sharding, SQL parser takes the performance and compatibility as its most important index. ShardingSphere SQL parser has undergone the upgrade and iteration of 3 generations of products.
To pursue good performance and quick achievement, the first generation of SQL parser uses Druid
before 1.4.x version.
As tested in practice, its performance exceeds other parsers a lot.
The second generation of SQL parsing engine begins from 1.5.x version, ShardingSphere has adopted fully self-developed parsing engine ever since.
Because of different purposes, ShardingSphere does not need to transform SQL into a totally abstract syntax tree or traverse twice through visitor.
Using half parsing
method, it only extracts the context required by data sharding, so the performance and compatibility of SQL parsing is further improved.
The third generation of SQL parsing engine begins from 3.0.x version.
ShardingSphere tries to adopts ANTLR as the SQL parsing engine, and plans to replace the former parsing engine according to the order of DDL -> TCL -> DAL –> DCL -> DML –>DQL
.
It is still in the process of replacement and iteration.
Hoping for a better compatibility with SQL, we use ANTLR in the parsing engine of ShardingSphere.
Though complex expressions, recursions, sub-queries and other sentences are not focused by the sharding core of ShardingSphere, they can influence the friendliness to understand SQL.
After testing in actual cases, the performance of ANTLR is about 3-10 times slower than the self-developed parsing engine when parsing SQL.
To compensate for this gap, ShardingSphere will use the SQL parsing tree of PreparedStatement
to put in the cache.
Therefore, PreparedStatement
is recommended to be used as the pre-compile method to improve the performance.
The overall structure division of the third generation of SQL parsing engine is shown in the following picture.


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|
Raph_Kernel
1bcb0fd27ed9fac05599e47edba8c7345459a143 (with uncommitted changes)
|
Directories | |
| directory | disk |
| directory | fs |
| directory | storage |
| directory | usb |
Files | |
| file | 8042.cc |
| file | 8042.d |
| file | 8042.h [code] |
| file | acpipmtmr.h [code] |
| file | device.h [code] |
| file | eth.h [code] |
| file | framebuffer.cc |
| file | framebuffer.d |
| file | framebuffer.h [code] |
| file | hpet.cc |
| file | hpet.d |
| file | hpet.h [code] |
| file | keyboard.cc |
| file | keyboard.d |
| file | keyboard.h [code] |
| file | netdev.cc |
| file | netdev.d |
| file | netdev.h [code] |
| file | pci.cc |
| file | pci.d |
| file | pci.h [code] |
| file | pciid.cc |
| file | pciid.d |
| file | pciid.h [code] |
| file | pciid.py |
| file | pciid_table.d |


Hi there! I see you have found THE DERPINATOR. Here's how to "use" it:
It's simple: write a story in the text area here. For all words that you want derped, professional term btw [citation needed], write derp:[word type] instead. Like I said, simple!
Supported word types are:
Noun/person/object are a bit special, as they are all nouns. In my benevolence I just wanted to give you a way to specify if the thing should be "alive" or not. If you say "noun", you'll get either an "object" or a "person".
Verbs are all past tense. Adverbs are descriptive words that mostly end in "-ly", and adjectives are descriptive words that... well, don't.
THE DERPINATOR will attempt to pluralize words if it feels like it. A/an should be taken care of, but your careful capitalization at the start of sentences will be wholly ignored if it's an article.
IMPROTANT: Verbs are past-tense. Yup, all of them. And they don't mutate. So write your thing like a fairy tale. "There once was a derp:person, who derp:verb another derp:person". You get the point.
Although maybe counter-intuitive given what kind of thing this is, you can have a consistent derp in your story! The derp will be randomized the first time, but then it remembers what it chose. How to use this? Glad you asked.
Just put [a number] after the derp:whatever. Like this: "The derp:person[1] was very derp:adjective[2] derp:noun[3]. The derp:person[1] liked being very derp:adjective[2] derp:noun[3]." Then, all derps with the same [number] will be the same throughout your derp. Useful? Kinda! Fun? Maybe? A good use of my programming time? You betcha!
So, you made a funny derp? Maybe you want to save it, to remember your great achievement? Just hit the "Ooh, good one! Save it!" button, and the derp will be listed here until the end of time (or until you clear your browser cache). A way more stable way to save your derp would be to copy and paste into a text document, but I think we already established that I like to waste my programming time.
If you want to make sure your amazing derp-base is saved over BSOD's, hit the "set as default derp-base"-button. Now, every time you come back, the text that was in the textarea when you hit the button will be there. Cool right? :D ... no??
This was made in a day to try out my regexp skills. The goal is not to be grammatically correct, or to follow any best programming practices. Have fun, and hope you enjoy the derps!


Safe embed, injecting as-is
Unsafe embed, sandboxing in fenced iframe
A paragraph.
And another.
On our blog today: how we ship software on our new responsive site: http://t.co/pDN4nsrHuV simple deploys, A/B tests and dashboards.
— Guardian Developers (@gdndevelopers) September 20, 2013


Locksmith Dorothy:
I am attempting to repair the metal fragments you brought me. Please wait -- this will take some time.
(Only characters level 42 and above are permitted to undertake this quest.)


General suite of bagging functions for several models.
bagger(x, ...) # S3 method for default bagger(x, ...) # S3 method for data.frame bagger( x, y, base_model = "CART", times = 11L, control = control_bag(), cost = NULL, ... ) # S3 method for matrix bagger( x, y, base_model = "CART", times = 11L, control = control_bag(), cost = NULL, ... ) # S3 method for formula bagger( formula, data, base_model = "CART", times = 11L, control = control_bag(), cost = NULL, ... ) # S3 method for recipe bagger( x, data, base_model = "CART", times = 11L, control = control_bag(), cost = NULL, ... )
| x | A data frame, matrix, or recipe (depending on the method being used). |
|---|---|
| ... | Optional arguments to pass to the base model function. |
| y | A numeric or factor vector of outcomes. Categorical outcomes (i.e classes) should be represented as factors, not integers. |
| base_model | A single character value for the model being bagged. Possible values are "CART", "MARS", and "C5.0" (classification only). |
| times | A single integer greater than 1 for the maximum number of bootstrap samples/ensemble members (some model fits might fail). |
| control | A list of options generated by |
| cost | A non-negative scale (for two class problems) or a cost matrix. |
| formula | An object of class "formula" (or one that can be coerced to that class): a symbolic description of the model to be fitted. Note that this package does not support multivariate outcomes and that, if some predictors are factors, dummy variables will not be created unless by the underyling model function. |
| data | A data frame containing the variables used in the formula or recipe. |
bagger()
fits separate models to bootstrap samples. The
prediction function for each model object is encoded in an R expression and
the original model object is discarded. When making predictions, each
prediction formula is evaluated on the new data and aggregated using the
mean.
Variable importance scores are calculated using implementations in each
package. When requested, the results are in a tibble with column names
term
(the predictor), value
(the importance score), and used
(the
percentage of times that the variable was in the prediction equation).
The models can be fit in parallel using the future package. The
enable parallelism, use the future::plan()
function to declare how the
computations should be distributed. Note that this will almost certainly
multiply the memory requirements required to fit the models.
library(recipes)#>#> #>#>#> #>#>#> #>#> #>#>#> #>library(dplyr) data(biomass, package = "modeldata") biomass_tr <- biomass %>% dplyr::filter(dataset == "Training") %>% dplyr::select(-dataset, -sample) biomass_te <- biomass %>% dplyr::filter(dataset == "Testing") %>% dplyr::select(-dataset, -sample) # ------------------------------------------------------------------------------ ctrl <- control_bag(var_imp = TRUE) # ------------------------------------------------------------------------------ # `times` is low to make the examples run faster set.seed(7687) mars_bag <- bagger(x = biomass_tr[, -6], y = biomass_tr$HHV, base_model = "MARS", times = 5, control = ctrl) mars_bag#> Bagged MARS (regression with 5 members) #> #> Variable importance scores include: #> #> # A tibble: 5 x 4 #> term value std.error used #> <chr> <dbl> <dbl> <int> #> 1 carbon 100 0 5 #> 2 hydrogen 18.1 2.66 5 #> 3 oxygen 11.6 2.53 4 #> 4 sulfur 1.56 0 1 #> 5 nitrogen 1.09 0.757 2 #>var_imp(mars_bag)#> # A tibble: 5 x 4 #> term value std.error used #> <chr> <dbl> <dbl> <int> #> 1 carbon 100 0 5 #> 2 hydrogen 18.1 2.66 5 #> 3 oxygen 11.6 2.53 4 #> 4 sulfur 1.56 0 1 #> 5 nitrogen 1.09 0.757 2set.seed(7687) cart_bag <- bagger(x = biomass_tr[, -6], y = biomass_tr$HHV, base_model = "CART", times = 5, control = ctrl) cart_bag#> Bagged CART (regression with 5 members) #> #> Variable importance scores include: #> #> # A tibble: 5 x 4 #> term value std.error used #> <chr> <dbl> <dbl> <int> #> 1 carbon 5716. 226. 5 #> 2 oxygen 3190. 110. 5 #> 3 hydrogen 2297. 283. 5 #> 4 sulfur 464. 63.2 5 #> 5 nitrogen 268. 12.3 5 #># ------------------------------------------------------------------------------ # Other interfaces # Recipes can be used biomass_rec <- recipe(HHV ~ ., data = biomass_tr) %>% step_pca(all_predictors()) set.seed(7687) cart_pca_bag <- bagger(biomass_rec, data = biomass_tr, base_model = "CART", times = 5, control = ctrl) cart_pca_bag#> Bagged CART (regression with 5 members) #> #> Variable importance scores include: #> #> # A tibble: 5 x 4 #> term value std.error used #> <chr> <dbl> <dbl> <int> #> 1 PC2 4500. 245. 5 #> 2 PC1 3559. 156. 5 #> 3 PC3 1107. 210. 5 #> 4 PC5 648. 137. 5 #> 5 PC4 468. 71.6 5 #># Using formulas mars_bag <- bagger(HHV ~ ., data = biomass_tr, base_model = "MARS", times = 5, control = ctrl) mars_bag#> Bagged MARS (regression with 5 members) #> #> Variable importance scores include: #> #> # A tibble: 5 x 4 #> term value std.error used #> <chr> <dbl> <dbl> <int> #> 1 carbon 100 0 5 #> 2 oxygen 22.4 3.09 5 #> 3 hydrogen 17.2 1.45 5 #> 4 sulfur 2.22 2.10 2 #> 5 nitrogen 1.39 0 1 #>


Meeteorite is a company that offers SaaS products combining simple collaborative methodologies and cutting-edge technology allowing users to set-up, facilitate, and manage all meeting outcomes.
The company and its products came about as a solution to the current worldwide problem of inefficient meetings that suck time, energy, creativity and resources out of businesses which are already suffering from continual decreasing revenues and rising costs.
- The proprietary suite of Meeteorite products are incredibly simple and intuitive to use.
- The products enable efficient and effective meetings with defined and measurable outcomes.
- The on-line software can be used in face-to-face forums, across video conferencing platforms, and on tablet technology and mobile devices.
- Management visibility across all Meeteorite services encourages stronger decision making and timely compliance around agreed action points.
- The proven and patented processes are designed to deliver meeting productivity and workforce accountability, driving healthy profits back into business.
Meeteorite is a revolutionary meeting management tool helping organizations to capture collaborative intelligence and drive productivity out of all meetings as a cross-organizational solution.
Meeteorite is the simplest and most effective way to set-up, facilitate and manage the outcomes of all your meetings from anywhere, anytime.


title: Power Ruby Applications with Crate description: Use Crate as a backend for your Ruby application with our interface and an optional ActiveRecord adapter to leverage speed of search and the elegance of SQL. name: Ruby slug: ruby image: /media/1503/lang-ruby-large.png {% extends "landing-lang.html" %} {% block content %}
Our Ruby distributions are hosted on RubyGems. The initial Ruby driver and ActiveRecord adapter were written by Christoph Klocker.
Find documentation about using Crate with a Ruby application and view sample code to get you started.
Is there a problem or missing feature with our Ruby adapters? Or have an opinion of feedback to discuss with our community? We would love your input and participation.


Man's childhood message in a bottle washes up just months after his tragic death
New Zealand dad Ryan Mead tucked a message in a bottle when he was 12 years old, and just months after he died in a freak accident 25 years later- it suddenly washed ashore
by Kelly-Ann Mills, Talia Shadwell, https://www.facebook.com/dailymirror/, https://www.mirror.co.uk/authors/talia-shadwell/The family of a dad-of-two killed in a freak accident have been touched to receive a message from their loved one from 'beyond the grave'.
New Zealander Ryan Meads was killed in March after inhaling fumes while laying carpets in the West Coast settlement of Greymouth in the country's South Island.
His grieving sister, Leah Mead, told Stuff her 37-year-old brother was sorely missed by his family, after he left behind his wife and two children.
Then one day, Ryan's parents were contacted by a stranger, Levi Johnson, who told them he had found a Coca Cola bottle washed up on a beach about 14km south of Greymouth.
Inside the bottle was a note written 25 years ago by Ryan when he was just 12.
It read: "If you find this bottle please right [sic] and tell us where and when you found it. Date 1/8/94."
It also had a phone number for his parents house, who amazingly hadn't changed their number in all those years.
Leah said her parents initially thought she had written the letter.
She said: "I had a look at it and I was like 'it's not me, that's Ryan's hand writing'. I only have one brother so it is definitely his.
"It's pretty special to have it. He passed away in March this year but I know he would have been quite stoked to get it back. He would have had a laugh about it.
"The weird thing is about a month ago I was in the car and the song "message in a bottle" came on and I said wouldn't it be cool if you put a message in a bottle and it came back to you, then two weeks later we get this letter in a bottle from Ryan. It's crazy."


2
1 Blow trumpets on Mount Zion,
God's sacred hill in Jerusalem!
Tell the people of Judah that they should be afraid and tremble,
because it will soon be the time for Yahweh to punish us further.
2 That will be a very dark and gloomy day;
there will be black clouds and it will be very dark.
A huge swarm of locusts has covered the mountains like a black cloud.
Nothing like this has ever happened before,
and nothing like this will ever happen again.
3 It is as though they bring flames of fire
from which no one can escape.
In front of them, the land was as beautiful as the garden of Eden,
but behind them the land is like a desert,
and nothing survives.
4 The locusts resemble horses,
and they run like soldiers on horses.
5 Leaping over the mountaintops,
they make a noise like rumbling chariots,
like a mighty army that is preparing for a battle,
or like the roar of a fire that burns up stubble in a field.
6 When people see them coming,
they become very pale and frightened.
7 The locusts climb over walls like soldiers do;
they march along in columns
and never turn aside from their lines.
8 They rush straight ahead
without pushing each other.
Even though people throw spears and javelins at them,
that will not cause them to stop.
9 They swarm over the city walls and enter our houses;
they enter through our windows as thieves do.
10 It is as though they cause the earth to shake and the sky to tremble.
The sun and the moon become dark,
and the stars do not shine
because there are so many locusts in the sky.
11 Yahweh leads this army of countless locusts,
and they obey his commands.
This time when he is judging and punishing us is very terrible,
with the result that it seems that no one can survive it.
12 But Yahweh says,
"In spite of these disasters that you have experienced,
you can return to me with all your inner being.
Weep, and mourn, and fast to show that you are sorry that you have abandoned me.
13 Do not tear only your clothes
to show that you are sorry;
more importantly, show in your inner being that you are sorry."
Yahweh is merciful and kind;
he does not quickly become angry;
he faithfully loves people.
He does not quickly become angry;
instead, he greatly and faithfully loves you,
and he does not like to punish us.
14 No one knows if he will change his mind about punishing you
and instead act mercifully toward you.
If he does that, he will bless you
by giving you plenty of grain and wine
in order that you can offer some of those things for sacrifices to him.
15 Blow the trumpets on Mount Zion!
Gather the people together!
Set apart time to fast, to show that you are sorry for your sins.
16 Perform the rituals to cause yourselves to be acceptable to Yahweh.
Come apart and join together as a group with a purpose—
the old people and the children, even the babies,
and summon brides and bridegrooms from their rooms.
17 Tell the priests who serve Yahweh to cry between the altar and the entrance to the temple
and to pray this:
"Yahweh, rescue us, your people;
do not allow people from other nations to despise us;
do not allow them to ridicule us and say,
'Why has their God abandoned them?'~"
18 But Yahweh showed that he was concerned about his people
and that he would act mercifully toward them.
19 When the people prayed,
Yahweh answered and said,
"I will give you plenty of grain and wine and olive oil,
and you will be satisfied.
I will no longer allow other nations to insult you.
20 Another army of locusts will come from the north to attack you,
but I will force them to continue past Jerusalem
into the desert.
Some will go into the Dead Sea in the east,
and some will go into the Mediterranean Sea in the west.
There they will all die, and their bodies will stink.
I will do wonderful things for you."
21 Yahweh indeed does wonderful things!
So even the ground should rejoice!
22 And the wild animals should not be afraid,
because the meadows will soon become green again;
the fig trees and other trees will be full of fruit,
and the grapevines will be covered with grapes.
23 You people of Jerusalem,
rejoice about what Yahweh, your God, will do for you.
He will send abundant rain at the right time—
in the spring and in the autumn,
as he did previously.
24 The ground where you thresh the grain will be covered with grain,
and your vats where you store the fresh grape juice and olive oil will overflow.
25 Yahweh said, "I will repay you for everything that was destroyed by those great swarms of locusts,
that enormous army that I sent to attack you.
26 You, my people, will eat until your stomachs are full.
Then you will praise me, Yahweh, your God,
for the wonderful things that I have done for you.
And never again will I let others shame you.
27 When that happens, you will know that I am always among you,
that I am Yahweh, your God,
and that there is no other God.

28 "Some time later, I will give my Spirit to many people.
You sons and daughters will proclaim messages that come directly from me.
Your old men will have dreams that come from me,
and your young men will have visions that come from me.
29 At that time, I will give my Spirit even to servants, both men and women.
30 I will do unusual things on the earth and in the sky.
On the earth, there will be much blood shed,
and there will be very large fires and smoke that resembles huge clouds.
31 In the sky, the sun will become dark, and the moon will become as red as blood.
Those things will happen before that great and terrible day when I, Yahweh, come to judge all people.
32 But at that time I will save everyone who worships me.
I promise that some people in Jerusalem will escape those disasters;
those whom I have chosen will survive."


When creating an Azure Web App, a production deployment slot is automatically provisioned that represents your live Web App.
In addition to the Production deployment slot, how many additional deployment slots can you create?
You can add additional deployment slots for a total of 5 deployment slots that can be swapped with the production slot, or other non-production slots. The 4 additional slots can be used for staging and testing purposes.
Which deployment scenario does the following describe?
Deploy to a non-production slot to test whether the Web App is working as expected. Then after you are satisfied with testing, you swap this slot with the production slot making the contents of this slot the new production Web App.
Which deployment scenario does the following describe?
After swapping a non-production slot into production you notice something wrong with the Web App, so you swap the production slot again to put the old contents back into production.
Which deployment scenario does the following describe?
Your Web App requires you to make some changed post deployment. You deploy to a non-production slot so you can first make those changes before finally swapping with the production slot.
Where are all deployment slots for the same Web App hosted?
Within a separate virtual machine (VM) instance as the Production deployment slot
Within the same physical machine as the Production deployment slot
Within the same virtual machine (VM) instance as the Production deployment slot
Within a separate physical machine as the Production deployment slot
All deployment slots for the same Web App are hosted within the same Virtual Machine (VM). This is especially important to remember when stress testing a non-production deployment slot prior to swapping it into production. A significant amount of load on a non-production deployment slot can affect the performance of the live, production Web App.
All the Web App content is swapped when swapping deployment slots.
Along with swapping Web App content when deployment slots are swapped, which configurations are moved to the destination slot?
Select all that apply
General settings (Always On, Web Sockets, .NET version, etc)
SSL/TLS certificates and bindings
Application and site diagnostics settings
Along with swapping Web App content when deployment slots are swapped, which configurations are not moved to the destination slot?
Select all that apply
General settings (Always On, Web Sockets, .NET version, etc)
SSL/TLS certificates and bindings
Application and site diagnostics settings
Two Web Apps can not share the same web hosting plan.
Two Web Apps are able to share the same hosting plan, as long as they are created within the same region, resource group and subscription.
The Classic Azure Portal supports migrating a Web Apps between hosting plans?
The existing Azure portal does not support migrating Web Apps between hosting plans.
The Azure Portal supports migrating a Web Apps between hosting plans?
You create a new Azure Web App with the URL prefix of "my-amazing-app". What is the domain / url where the application is accessible from?
my-amazing-app.azurewebsites.net
my-amazing-app.windowsazure.com
When Azure Web Apps are created they are automatically configured with a ".azurewebsites.net" domain name endpoint.
What are the 4 Azure Web App Service Tiers available?


{% extends 'core/base.html' %} {% block head_title %}Sorry, there is a problem with the service{% endblock %} {% block content %} Sorry, there is a problem with the service {% endblock %} {% block feedback_reporter %}{% endblock %}


pip install profile
Successfully installed profile
python -m yashwanth download about
Installed model 'about'
yashwanth 😉👊
creative designer
contribution = 'cards_page'
likes = 'badmiton','singing'
do you want to go back
yes
no


Research
I'm interested in robotics, computer vision and machine learning. Currently, my main focus is on improving self-supervised learning
methods by and for robotics.
My Erdos Number: 4 [László Lovász (1) -> Rajmohan Rajaraman (2) -> Dimitrios Kanoulas (3) -> Denis Hadjivelichkov (4)]
|


Dear RIDER_FIRST_NAME:
Please submit your scheduling conflicts for next week by Thursday at 12pm to be included in next week's schedule.
Last week you had the following scheduling conflicts:
Click this link to submit your conflicts for next week.
Best,
Tess Cohen
Accounts Executive
BK Shift, LLC
347-460-6484
tess@bkshift.test


Format of log messages. A plain string:
level class message
vvvvv vvvvvvvv vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
INFO Endpoint - Invoking endpoint: [GET] /open-api.yml
A plain string with logTimestamp
set to true:
ISO 8601 Datetime level class message
vvvvvvvvvvvvvvvvvvvvvvvv vvvvv vvvvvvvv vvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvvv
2019-04-21T16:38:09.680Z INFO Endpoint - Invoking endpoint: [GET] /open-api.yml
A JSON format message (matches lambda-api format):
{
"level": "INFO",
"msg": "Endpoint - Invoking endpoint: [GET] /open-api.yml",
"time":<PHONE_NUMBER>882 // millis since epoch
}
Lowest level of log message to output.
See LogLevel for levels supported.
Print an ISO 8601 timestamp before every log message? (string format only)
Defaults to false, AWS Lambda already includes timestamps in it's log of standard output.
Generated using TypeDoc
Logging configuration for the
ts-lambda-api
framework.


QUIZ SHOW A film review by N'Gai Croal Copyright 1994 N'Gai Croal/Terrordome Bookworks
QUIZ SHOW is the worst good film of 1994, which says as much about the current state of American film as it does Robert Redford's most recent directorial effort. It sports an intriguing premise, a top-notch cast, an ace cinematographer (Scorsese partner-in-crime Michael Ballhaus) and a famously intelligent director. But all of these elements, like the trappings of the actual quiz show scandals, are smoke-and-mirrors that conceals the fact that something is wrong at the center--in this case, Paul Attanasio's screenplay--but for only so long.
The film begins with great promise. Congressional investigator Richard Goodwin (Rob Morrow) circles a spanking new convertible at the center of a gleaming showroom; circling directly overhead is a smooth-talking salesman who recites the specifications of the car like the virtues of a lover. Redford and Ballhaus depart from the Sundance Kid's notoriously formal style; here, the two cross-fade from shot to shot as Goodwin walks around the car, a rhythm that establishes the seductiveness of the moment as well as its artifice. The scene has nothing to do with the narrative, but it's got everything to do with the film's theme: the importance of probing beneath shiny surfaces.
Redford effortlessly tops anything he's done to date with the next sequence, which introduces us to the quiz show of the title, "Twenty-One." The camera prowls the studio where the show is shot, introducing producers, contestants and a rapt studio audience. Outside the NBC building and across the country, men, women and children flock to their television sets to watch long-running champion Herbert Stempel (John Turturro) defy the odds and win yet again.
The sequence is a marvel of simple-yet-effective cross-cutting, but Redford doesn't stop there. As he shows us the brilliantly scripted puppet show taking place on national TV, he pulls back the curtain to reveal the puppeteer standing behind it; in this case the Geritol sponsor (director Martin Scorsese). While the bosomy blonde sitting next to him remarks that Stempel's face was "was made for radio," the sponsor calls up the head of the network, who in turn calls up the show's producers, who in turn inform Stempel that it's time for him to go.
The search is on for a new face--a "Twenty-One" champion "who looks like he could get a table at Twenty-One." Enter Charles van Doren (Ralph Fiennes), an Ivy Leaguer who teaches at Columbia and whose family seems to breed literati like rabbits. A WASP among WASP, he's the perfect replacement for the overbearingly Jewish (or is it Jewishly overbearing) Stempel. Needless to say, Stempel doesn't take the coup very well, and determines to show the uncircumcised Hamptoner what little Queens boys are made of, kicking off a grand jury investigation that catches Goodwin's attention.
What Stempel and Goodwin don't realize is the full extent of the power wielded by the two institutions they're taking on--the old whiteboy network and big business. Goodwin is very nearly seduced by the former; in investigating Charles van Doren, he finds himself so drawn to their easy, erudite life of privilege that he resists implicating van Doren until he can no longer protect him. And the latter, with millions of dollars behind it, walks into Goodwin's line of fire and emerges unscathed. "I thought I was gonna get television," he says, "but the truth is, television's gonna get us."
For a while, QUIZ SHOW gets by on its gentle humor. But Redford is ill-suited to get to the bottom of the human comedy of the quiz show scandal. He trots out the usual suspects: Stempel is motivated by his resentment of WASPs, Goodwin by his ambition and van Doren by an Oedipus complex (minus the sexual component, of course). None of these are complicated enough to justify a two-hour movie--particularly one with three main characters--unless it's balls-out satire. Directors with acid for blood, like Scorsese, Altman or Kubrick understand that, which is why superficially superficial films like GOODFELLAS, THE PLAYER and DR. STRANGELOVE shoot right to our core. Redford is so mistakenly brings a knife to a gunfight, so it's no surprise that he fails to draw blood.
Attanasio's script, while competent, is content to lay out a map so complete that there are no surprises; there isn't a single moment in the film that can't be predicted. The source material may be insubstantial, but there is a lot of ground the narrative has to cover. Attanasio's mistake is to attempt both breadth and depth simultaneously; it's inevitable and unfortunate that both fail spectacularly.
The actors seem to understand that QUIZ SHOW should be a satire, which has the effect entertaining us superbly even as it exposes the hollowness at the film's core. Ralph Fiennes, so effortlessly chilling as Amon Goeth in SCHINDLER'S LIST reminds us why Day-Lewis status isn't too far away for this young Brit. Here, he strains for a credible New York accent (as does Yank Rob Morrow), but the demons that lie beneath his patrician exterior are only too believable. Paul Scofield puts in an award-worthy supporting turn as van Doren's father, an man who intuitively, if not intellectually, understands the danger that television represents. And Martin Scorsese gives such a scabrous performance an unflappable Geritol executive, that, at greater length, could have rivaled his infamous backseat pussy-and-a-.45 monologue in TAXI DRIVER.
But the bravura performance is delivered by John Turturro. He sinks his teeth into Stempel's Jewish inferiority complex with such over-the-top gusto that were this a Spike Lee film, cries of anti-Semitism would be unleavened by Goodwin's good-Jew role. More sweaty, jittery and boorish than Tommy Lee Jones' warden in NATURAL BORN KILLERS, the part is right out of Der Sturmer. But Turturro plunges so far into the part that he creates a truth completely outside of Attanasio's scripting, refusing to sentimentalize Stempel in the least. It's as if Turturro were saying, "I double-dare ya to like this shmuck."
Unfortunately for Redford, the truth Turturro creates is so effective that we can't be bothered to take him up on his dare. Both van Doren and Stempel may be frauds, but van Doren's smooth, all-American beauty is far better company than Stempel's snaggle-toothed chutzpah, so we can't begrudge Goodwin or Redford for deciding to spend more time with van Doren. We see van Doren at work, rest and play, but every time we see Stempel, he's monomaniacally focused on "Twenty-One."  If van Doren were more vacant, more greedy, more grasping than he turns out to be, Redford could have punished us and Goodwin for falling for van Doren's golden-boy charm. Instead, Redford's even-handedness becomes infuriating, and his insistence that television is the real bad guy rings more-and-more hollow.
Despite the screenplay's significant problems, QUIZ SHOW is very entertaining. Redford's skill with actors is very much in evidence, particularly in the quiet scenes, and most impressively with Fiennes and Scofield; the stunned expression on Scofield's face after hearing his son confesses to him suggests a loss of innocence that was never America's to lose. But Redford slyly saves his best and most disturbing image for last: behind the end credits, a studio audience laughs and applauds in ominous slow-motion, as if the scandal had ever happened. Turning the camera back on us, in fact, is the most intelligent choice Redford makes in the entire film, a choice that almost justifies QUIZ SHOW's existence.
-- n'gai croal<EMAIL_ADDRESS>.
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rec.arts.movies.reviews newsgroup (de.rec.film.kritiken for German reviews).
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BRBeaconMessageQueuedStreamNode Class Reference
| Inherits from | BRBeaconMessageStreamNode : NSObject |
|---|---|
| Declared in | BRBeaconMessageQueuedStreamNode.h BRBeaconMessageQueuedStreamNode.m |
Overview
A beacon message queued stream node is a node in a message processing graph that queues all incoming beacon messages. The queue has a maximum size of {@link #maximumSize}. The messages will not be delivered to any receiver. However, they can be pulled by calling the {@link
pullBeaconMessage} method.
Other Methods
– onReceivedMessage:withMessage:
- (void)onReceivedMessage:(BRBeaconMessageStreamNode *)senderNode withMessage:(BRBeaconMessage *)message


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|
Vulkan Memory Allocator
|
API elements related to the mechanism of Virtual allocator - using the core allocation algorithm for user-defined purpose without allocating any real GPU memory. More...
Classes | |
| struct | VmaVirtualBlockCreateInfo |
| Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock(). More... | |
| struct | VmaVirtualAllocationCreateInfo |
| Parameters of created virtual allocation to be passed to vmaVirtualAllocate(). More... | |
| struct | VmaVirtualAllocationInfo |
| Parameters of an existing virtual allocation, returned by vmaGetVirtualAllocationInfo(). More... | |
| struct | VmaVirtualAllocation |
| Represents single memory allocation done inside VmaVirtualBlock. More... | |
| struct | VmaVirtualBlock |
| Handle to a virtual block object that allows to use core allocation algorithm without allocating any real GPU memory. More... | |
Enumerations | |
| enum | VmaVirtualBlockCreateFlagBits { VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT = 0x00000001 , VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK , VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF } |
| Flags to be passed as VmaVirtualBlockCreateInfo::flags. More... | |
| enum | VmaVirtualAllocationCreateFlagBits { VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT = VMA_ALLOCATION_CREATE_UPPER_ADDRESS_BIT , VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT , VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT , VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT = VMA_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT , VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK = VMA_ALLOCATION_CREATE_STRATEGY_MASK , VMA_VIRTUAL_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM = 0x7FFFFFFF } |
| Flags to be passed as VmaVirtualAllocationCreateInfo::flags. More... | |
Functions | |
| VK_DEFINE_NON_DISPATCHABLE_HANDLE (VmaVirtualAllocation) | |
| VkResult | vmaCreateVirtualBlock (const VmaVirtualBlockCreateInfo *pCreateInfo, VmaVirtualBlock *pVirtualBlock) |
| Creates new VmaVirtualBlock object. More... | |
| void | vmaDestroyVirtualBlock (VmaVirtualBlock virtualBlock) |
| Destroys VmaVirtualBlock object. More... | |
| VkBool32 | vmaIsVirtualBlockEmpty (VmaVirtualBlock virtualBlock) |
| Returns true of the VmaVirtualBlock is empty - contains 0 virtual allocations and has all its space available for new allocations. More... | |
| void | vmaGetVirtualAllocationInfo (VmaVirtualBlock virtualBlock, VmaVirtualAllocation allocation, VmaVirtualAllocationInfo *pVirtualAllocInfo) |
Returns information about a specific virtual allocation within a virtual block, like its size and pUserData pointer. More... | |
| VkResult | vmaVirtualAllocate (VmaVirtualBlock virtualBlock, const VmaVirtualAllocationCreateInfo *pCreateInfo, VmaVirtualAllocation *pAllocation, VkDeviceSize *pOffset) |
| Allocates new virtual allocation inside given VmaVirtualBlock. More... | |
| void | vmaVirtualFree (VmaVirtualBlock virtualBlock, VmaVirtualAllocation allocation) |
| Frees virtual allocation inside given VmaVirtualBlock. More... | |
| void | vmaClearVirtualBlock (VmaVirtualBlock virtualBlock) |
| Frees all virtual allocations inside given VmaVirtualBlock. More... | |
| void | vmaSetVirtualAllocationUserData (VmaVirtualBlock virtualBlock, VmaVirtualAllocation allocation, void *pUserData) |
| Changes custom pointer associated with given virtual allocation. More... | |
| void | vmaGetVirtualBlockStatistics (VmaVirtualBlock virtualBlock, VmaStatistics *pStats) |
| Calculates and returns statistics about virtual allocations and memory usage in given VmaVirtualBlock. More... | |
| void | vmaCalculateVirtualBlockStatistics (VmaVirtualBlock virtualBlock, VmaDetailedStatistics *pStats) |
| Calculates and returns detailed statistics about virtual allocations and memory usage in given VmaVirtualBlock. More... | |
API elements related to the mechanism of Virtual allocator - using the core allocation algorithm for user-defined purpose without allocating any real GPU memory.
Flags to be passed as VmaVirtualAllocationCreateInfo::flags.
| typedef VkFlags VmaVirtualAllocationCreateFlags |
Flags to be passed as VmaVirtualAllocationCreateInfo::flags. See VmaVirtualAllocationCreateFlagBits.
| typedef struct VmaVirtualAllocationCreateInfo VmaVirtualAllocationCreateInfo |
Parameters of created virtual allocation to be passed to vmaVirtualAllocate().
| typedef struct VmaVirtualAllocationInfo VmaVirtualAllocationInfo |
Parameters of an existing virtual allocation, returned by vmaGetVirtualAllocationInfo().
Flags to be passed as VmaVirtualBlockCreateInfo::flags.
| typedef VkFlags VmaVirtualBlockCreateFlags |
Flags to be passed as VmaVirtualBlockCreateInfo::flags. See VmaVirtualBlockCreateFlagBits.
| typedef struct VmaVirtualBlockCreateInfo VmaVirtualBlockCreateInfo |
Parameters of created VmaVirtualBlock object to be passed to vmaCreateVirtualBlock().
Flags to be passed as VmaVirtualAllocationCreateInfo::flags.
| Enumerator | |
|---|---|
| VMA_VIRTUAL_ALLOCATION_CREATE_UPPER_ADDRESS_BIT | Allocation will be created from upper stack in a double stack pool. This flag is only allowed for virtual blocks created with VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT flag. |
| VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_MEMORY_BIT | Allocation strategy that tries to minimize memory usage. |
| VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_TIME_BIT | Allocation strategy that tries to minimize allocation time. |
| VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MIN_OFFSET_BIT | Allocation strategy that chooses always the lowest offset in available space. This is not the most efficient strategy but achieves highly packed data. |
| VMA_VIRTUAL_ALLOCATION_CREATE_STRATEGY_MASK | A bit mask to extract only These strategy flags are binary compatible with equivalent flags in VmaAllocationCreateFlagBits. |
| VMA_VIRTUAL_ALLOCATION_CREATE_FLAG_BITS_MAX_ENUM |
Flags to be passed as VmaVirtualBlockCreateInfo::flags.
| Enumerator | |
|---|---|
| VMA_VIRTUAL_BLOCK_CREATE_LINEAR_ALGORITHM_BIT | Enables alternative, linear allocation algorithm in this virtual block. Specify this flag to enable linear allocation algorithm, which always creates new allocations after last one and doesn't reuse space from allocations freed in between. It trades memory consumption for simplified algorithm and data structure, which has better performance and uses less memory for metadata. By using this flag, you can achieve behavior of free-at-once, stack, ring buffer, and double stack. For details, see documentation chapter Linear allocation algorithm. |
| VMA_VIRTUAL_BLOCK_CREATE_ALGORITHM_MASK | Bit mask to extract only |
| VMA_VIRTUAL_BLOCK_CREATE_FLAG_BITS_MAX_ENUM |
| VK_DEFINE_NON_DISPATCHABLE_HANDLE | ( | VmaVirtualAllocation | ) |
| void vmaCalculateVirtualBlockStatistics | ( | VmaVirtualBlock | virtualBlock, |
| VmaDetailedStatistics * | pStats | ||
| ) |
Calculates and returns detailed statistics about virtual allocations and memory usage in given VmaVirtualBlock.
This function is slow to call. Use for debugging purposes. For less detailed statistics, see vmaGetVirtualBlockStatistics().
| void vmaClearVirtualBlock | ( | VmaVirtualBlock | virtualBlock | ) |
Frees all virtual allocations inside given VmaVirtualBlock.
You must either call this function or free each virtual allocation individually with vmaVirtualFree() before destroying a virtual block. Otherwise, an assert is called.
If you keep pointer to some additional metadata associated with your virtual allocation in its pUserData
, don't forget to free it as well.
| VkResult vmaCreateVirtualBlock | ( | const VmaVirtualBlockCreateInfo * | pCreateInfo, |
| VmaVirtualBlock * | pVirtualBlock | ||
| ) |
Creates new VmaVirtualBlock object.
| pCreateInfo | Parameters for creation. | |
| [out] | pVirtualBlock | Returned virtual block object or VMA_NULL if creation failed. |
| void vmaDestroyVirtualBlock | ( | VmaVirtualBlock | virtualBlock | ) |
Destroys VmaVirtualBlock object.
Please note that you should consciously handle virtual allocations that could remain unfreed in the block. You should either free them individually using vmaVirtualFree() or call vmaClearVirtualBlock() if you are sure this is what you want. If you do neither, an assert is called.
If you keep pointers to some additional metadata associated with your virtual allocations in their pUserData
, don't forget to free them.
| void vmaGetVirtualAllocationInfo | ( | VmaVirtualBlock | virtualBlock, |
| VmaVirtualAllocation | allocation, | ||
| VmaVirtualAllocationInfo * | pVirtualAllocInfo | ||
| ) |
Returns information about a specific virtual allocation within a virtual block, like its size and pUserData
pointer.
| void vmaGetVirtualBlockStatistics | ( | VmaVirtualBlock | virtualBlock, |
| VmaStatistics * | pStats | ||
| ) |
Calculates and returns statistics about virtual allocations and memory usage in given VmaVirtualBlock.
This function is fast to call. For more detailed statistics, see vmaCalculateVirtualBlockStatistics().
| VkBool32 vmaIsVirtualBlockEmpty | ( | VmaVirtualBlock | virtualBlock | ) |
Returns true of the VmaVirtualBlock is empty - contains 0 virtual allocations and has all its space available for new allocations.
| void vmaSetVirtualAllocationUserData | ( | VmaVirtualBlock | virtualBlock, |
| VmaVirtualAllocation | allocation, | ||
| void * | pUserData | ||
| ) |
Changes custom pointer associated with given virtual allocation.
| VkResult vmaVirtualAllocate | ( | VmaVirtualBlock | virtualBlock, |
| const VmaVirtualAllocationCreateInfo * | pCreateInfo, | ||
| VmaVirtualAllocation * | pAllocation, | ||
| VkDeviceSize * | pOffset | ||
| ) |
Allocates new virtual allocation inside given VmaVirtualBlock.
If the allocation fails due to not enough free space available, VK_ERROR_OUT_OF_DEVICE_MEMORY
is returned (despite the function doesn't ever allocate actual GPU memory). pAllocation
is then set to VK_NULL_HANDLE
and pOffset
, if not null, it set to UINT64_MAX
.
| virtualBlock | Virtual block | |
| pCreateInfo | Parameters for the allocation | |
| [out] | pAllocation | Returned handle of the new allocation |
| [out] | pOffset | Returned offset of the new allocation. Optional, can be null. |
| void vmaVirtualFree | ( | VmaVirtualBlock | virtualBlock, |
| VmaVirtualAllocation | allocation | ||
| ) |
Frees virtual allocation inside given VmaVirtualBlock.
It is correct to call this function with allocation == VK_NULL_HANDLE
- it does nothing.


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Nick Saban Issues Update On Alabama QB Tua Tagovailoa
by Chris RosvoglouCollege football fans may have seen the last of Tua Tagovailoa in Tuscaloosa, as the star quarterback went down with a season-ending injury this past weekend. On Monday, he underwent surgery on his dislocated right hip.
Many scouts had Tagovailoa listed as the top quarterback prospect for the 2020 NFL Draft. This injury could open the door for Joe Burrow or Justin Herbert to leapfrog him on draft boards though.
According to ESPN’s Laura Rutledge, Tagovailoa will be on a partial weight-bearing plan for the next six weeks. The estimated recovery time for him is six-to-eight months.
Judging off Nick Saban’s recent comments, the star quarterback won’t let this negative situation weigh him down.
“I talk to him every day. He’s in good spirits, and he’s doing well,” Saban said. “I think all the indications from the surgery have been really positive from a medical standpoint. I think he’s got a really good understanding of what he’s looking at.”
This is yet another promising update on Tagovailoa, who is expected to make a full recovery.
Saban has received tons of criticism for playing Tagovailoa in a blowout win over Mississippi State. However, the legendary coach did reveal that he only planned on using him for one more drive – the drive where he suffered the hip injury.
Now that Tagovailoa’s season is over, the Crimson Tide will have to rely on Mac Jones.
Jones will start this Saturday for Alabama as it hosts Western Carolina.


Google released its tensorflow object detectio api to open source and this api is really well-provided, both in terms of the framework design and source code quality. I have been reading the source code a few months ago and I am now able to utilize the api to provide some custom functionalities.
We all know that having enough training data in deep learning is important but sometimes it is very difficult to gather as much data as you need. And data augmentation is an useful technique to make some transformations to the original data so that there are more data to feed to the model during training.
I came across several questions related to the augmentation options within the api. The augmentations are part of the whole training pipeline, so it is not easy to visualize the augmented images, and some users find it very difficult to understand what kind of augmentation options they need.
I read the source code and I found that the testing package provided the tool for us to test the augmentation options, I made a little change and wrote the following script augmentation_test.py
.
from __future__ import absolute_import
from __future__ import division
from __future__ import print_function
import functools
import os
from absl.testing import parameterized
import numpy as np
import tensorflow as tf
from scipy.misc import imsave, imread
from object_detection import inputs
from object_detection.core import preprocessor
from object_detection.core import standard_fields as fields
from object_detection.utils import config_util
from object_detection.utils import test_case
FLAGS = tf.flags.FLAGS
class DataAugmentationFnTest(test_case.TestCase):
def test_apply_image_and_box_augmentation(self):
data_augmentation_options = [
(preprocessor.random_horizontal_flip, {
})
]
data_augmentation_fn = functools.partial(
inputs.augment_input_data,
data_augmentation_options=data_augmentation_options)
tensor_dict = {
fields.InputDataFields.image:
tf.constant(imread('input.image').astype(np.float32)),
fields.InputDataFields.groundtruth_boxes:
tf.constant(np.array([[.5, .5, 1., 1.]], np.float32))
}
augmented_tensor_dict =
data_augmentation_fn(tensor_dict=tensor_dict)
with self.test_session() as sess:
augmented_tensor_dict_out = sess.run(augmented_tensor_dict)
imsave('output.image',augmented_tensor_dict_out[fields.InputDataFields.image])
if __name__ == '__main__':
tf.test.main()
The code above took some code samples from the testing package input_test.py. In the script, it defined a DataAugmentationFnTest
test class and this class has a method called test_apply_image_and_box_augmentation
.
There are several parts to be configured in order to visualize the augmentation effects on the images.
input.image
and output.image
need to be configured to the correct input image path and output image path.
data_augmentation_options = []
, in this list, you should add the augmentation options that you want to test, if you have several options, you should append them to the list as well.
So this is my first post. I want to write something about it but I don’t know what to write yet. But I think it is a good idea to start practicing markdown format writing. I have used markdown a lot of times (for example, editting on stackoverflow) but I never actually payed attention to the syntax. Supposedly the syntax is very simple.
so this is the code section