| --- |
| 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](LICENSE). 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. |
|
|
