| --- |
| license: cc-by-nc-4.0 |
| task_categories: |
| - object-detection |
| language: |
| - km |
| tags: |
| - document-layout |
| - khmer |
| - coco |
| - object-detection |
| pretty_name: ARDB Daily Bulletin Layout (COCO, folder format) |
| size_categories: |
| - n<1K |
| --- |
| |
| # ARDB Daily Bulletin Layout Detection (COCO, folder format) |
|
|
| > ## ⚠️ Please use [**Soxavin/ardb-layout-coco-v2**](https://huggingface.co/datasets/Soxavin/ardb-layout-coco-v2) instead |
| > |
| > This v1 repository is the **original folder / COCO** export and is **no longer maintained**. |
| > The identical data is published in Parquet format — with a working Dataset Viewer and the |
| > standard 🤗 `datasets` loader — at |
| > [**Soxavin/ardb-layout-coco-v2**](https://huggingface.co/datasets/Soxavin/ardb-layout-coco-v2). |
| > New users should load v2: |
| > ```python |
| > from datasets import load_dataset |
| > ds = load_dataset("Soxavin/ardb-layout-coco-v2") |
| > ``` |
|
|
| A document-layout **object-detection** dataset built from **ARDB (Agricultural and Rural |
| Development Bank of Cambodia) daily market-price bulletins** — born-digital Khmer-language PDFs, |
| one price table per page. Every page is annotated with bounding boxes for five layout regions |
| (table, text, section header, page furniture, picture). |
|
|
| ## Layout on disk |
|
|
| ``` |
| train/ valid/ test/ |
| ├── <page>.jpg # page images, 200 DPI (2000 × 2000 px) |
| └── _annotations.coco.json # COCO annotations for that split |
| ``` |
|
|
| ## Dataset structure |
|
|
| | Split | Pages | Boxes | Source documents | |
| |-------|------:|------:|-----------------:| |
| | train | 73 | 341 | 24 bulletins | |
| | valid | 9 | 42 | 3 bulletins | |
| | test | 9 | 42 | 3 bulletins | |
| | **total** | **91** | **425** | **30 bulletins** | |
|
|
| ## Classes |
|
|
| | id | name | Boxes | Notes | |
| |----|------------------|------:|-------| |
| | 0 | `Table` | 91 | The price table — exactly one per page, covering the full table including header row and label columns. | |
| | 1 | `Text` | 30 | Body / paragraph text. | |
| | 2 | `Section-Header` | 31 | Headings and titles. | |
| | 3 | `Page-Furniture` | 182 | Page headers and footers. | |
| | 4 | `Picture` | 91 | Logos and stamps. | |
|
|
| Boxes use the COCO convention: `bbox = [x, y, width, height]` in pixels. |
|
|
| ## Data collection & annotation |
|
|
| 1. **Source.** Publicly published ARDB daily market-price bulletins, rendered page-by-page at |
| 200 DPI. |
| 2. **Pre-annotation.** Candidate boxes were generated automatically with a document-layout |
| detector, confidence-filtered, and mapped to the five-class set above. |
| 3. **Human correction.** Every page was reviewed and corrected in Roboflow: fragmented table |
| regions merged to one box per page, edges tightened, mislabels fixed, spurious boxes removed. |
| 4. **Splitting.** Splits are assigned **by document** (no bulletin's pages span splits) to |
| prevent near-duplicate-page leakage. |
|
|
| ## Limitations |
|
|
| - **Single template.** All bulletins share one recurring page layout, so validation/test |
| measure annotation quality rather than cross-design generalization. |
| - **Small scale.** 91 pages / 30 documents. |
|
|
| ## License |
|
|
| The **annotations** (bounding boxes, class labels, metadata) are released under **CC BY-NC 4.0** — |
| free for non-commercial research with attribution. The **page images** are reproductions of |
| bulletins published by ARDB, included for research use only; users are responsible for complying |
| with the source documents' terms. This dataset is not affiliated with or endorsed by ARDB. |
|
|
