Datasets:
license: cc-by-nc-4.0
language:
- zh
task_categories:
- question-answering
tags:
- knowledge-tracing
- mathematics
- multimodal
SketchKT
SketchKT is a de-identified Chinese mathematics dataset for multimodal
knowledge-tracing research. It has two data-table directories and two shared
scratch-image libraries. Images are stored once only. Temporal KT stores its
large image library in tar.gz shards. Extract the shards at the dataset root
to create scratch_images/; every existing scratch_image value then works
as an ordinary relative path. Progress Verified KT uses ordinary relative
image paths without extraction.
| Component | Contents |
|---|---|
Temporal KT/ |
10,000 selected student sequence windows, 423,712 deduplicated interactions, questions, knowledge components, and train/validation/test splits. Each sequence contains 80 historical interactions and one target interaction. |
Progress Verified KT/ |
A 1,031-row labeled test set: 841 correct and 190 incorrect. Each row has exactly reference_answer, question_text, scratch_image, student_answer, and is_correct. |
scratch_archives/ |
Shared tar.gz drawings used by Temporal KT, plus an archive manifest. |
pvkt_scratch_images/ |
Shared masked drawings used by Progress Verified KT. |
Privacy and responsible use
This release removes source identifiers, absolute dates, source URLs, and demographic/geographic fields. Public image names are newly assigned and every released image is checked for embedded EXIF metadata. Structured personal-data patterns in released text are conservatively redacted. The image pixels are not altered beyond the pre-existing Progress Verified KT answer masking.
No automated check can establish that handwriting has no identifying content
in every image. Users must follow DATA_USAGE.md, avoid re-identification,
and report suspected personal information to the maintainers rather than
redistributing it.
License
This dataset is made available under CC BY-NC 4.0. The additional
data-use terms in DATA_USAGE.md, including the prohibition on
re-identification, apply to access and use of this release.
See SCHEMA.md for the table fields and image-reference format.