Add dataset card

README.md

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+---
+license: cc-by-4.0
+language:
+- bo
+task_categories:
+- token-classification
+tags:
+- tibetan
+- ner
+- metadata
+- bdrc
+size_categories:
+- 1K<n<10K
+---
+
+# Tibetan Metadata Extracted Documents
+
+Raw BDRC outliner exports used to build [ganga4364/tibetan-metadata-detector](https://huggingface.co/datasets/ganga4364/tibetan-metadata-detector).
+
+## Contents
+
+3,794 approved documents with annotated title/author spans. Each row:
+
+| Field | Description |
+|-------|-------------|
+| `doc_id` | Document UUID |
+| `filename` | Source filename |
+| `text` | Full document text (UTF-8) |
+| `annotations_json` | JSON with `segments` and flat `annotations` (title/author spans) |
+
+## Related repos
+
+- Window splits + model training data: [ganga4364/tibetan-metadata-detector](https://huggingface.co/datasets/ganga4364/tibetan-metadata-detector)
+- Fine-tuned model: [ganga4364/tibetan-metadata-roberta-ner](https://huggingface.co/ganga4364/tibetan-metadata-roberta-ner)
+- Demo: [ganga4364/tibetan-metadata-highlight](https://huggingface.co/spaces/ganga4364/tibetan-metadata-highlight)
+
+## Usage
+
+```python
+from datasets import load_dataset
+
+ds = load_dataset("ganga4364/tibetan-metadata-extracted")
+doc = ds["train"][0]
+```