Hai cho ro: retrieve_contexts() khi loc theo lop + bai ra rong thi quay ve
toan bo 1.322 doan, va lookup_question() tra hits[0] bat ke lop. Hau qua la
chon lop 3 van nhan dap an cua cau lop 4.
Gio noi long dan bai hoc -> chu de -> ca lop, nhung khong bao gio vuot ra
ngoai lop da chon; lookup_question tra None neu lop khong khop.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PGz4Cji9KRfbpaigXtof9v
Tra dap an trong sach cho ca 10.961 cau, khong chi 1.073 cau test
Thuc nghiem chi sinh du doan cho tap test, nen cau hoi o tap train/dev deu
bi bao unavailable du bo du lieu co san dap an chuan. Them lookup_question()
tra cuu theo cau hoi tren toan bo dataset va tra ve o truong `textbook`.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PGz4Cji9KRfbpaigXtof9v
Cau hoi tu do khong nam trong tap test thi ca 6 mo hinh deu unavailable.
Them chi muc TF-IDF tren 1.073 cau test de /predict tra ve `suggestions`,
giup nguoi dung biet hoi gi thay vi gap mot man hinh trong.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PGz4Cji9KRfbpaigXtof9v
ITSchool-V1.0 QA API: 6 mo hinh Transformer + du lieu thuc nghiem
FastAPI tren HF Space. /predict suy dien 6 mo hinh (PhoBERT, mBERT, XLM-R,
ViT5, BARTpho, GPT), /data/* phuc vu 10.961 cap hoi dap va ket qua thuc nghiem.
Chua co checkpoint fine-tune thi tra lai du doan da ghi cua 1.073 cau test.
Co-Authored-By: Claude Opus 5 <noreply@anthropic.com>
Claude-Session: https://claude.ai/code/session_01PGz4Cji9KRfbpaigXtof9v
