Add Parquet files and YAML dataset card for HuggingFace datasets integration

- Add 5 Parquet files (ZSTD compressed) alongside existing TSVs:
cognate_pairs_inherited (23.6MB), cognate_pairs_similarity (5.0MB),
cognate_pairs_borrowing (487KB), phylo_pairs (416KB), languages (14KB)
- Add YAML frontmatter to README with 5 named dataset configs
- Add programmatic access docs for both datasets library and SDK

README.md

@@ -1,3 +1,43 @@
+---
+language:
+- mul
+license: cc-by-sa-4.0
+task_categories:
+- text-classification
+- token-classification
+tags:
+- linguistics
+- historical-linguistics
+- cognate-detection
+- phylogenetics
+- ancient-languages
+- IPA
+- phonetics
+size_categories:
+- 10M<n<100M
+configs:
+- config_name: cognate_pairs_inherited
+  data_files:
+  - split: train
+    path: data/training/cognate_pairs/cognate_pairs_inherited.parquet
+- config_name: cognate_pairs_borrowing
+  data_files:
+  - split: train
+    path: data/training/cognate_pairs/cognate_pairs_borrowing.parquet
+- config_name: cognate_pairs_similarity
+  data_files:
+  - split: train
+    path: data/training/cognate_pairs/cognate_pairs_similarity.parquet
+- config_name: phylo_pairs
+  data_files:
+  - split: train
+    path: data/training/metadata/phylo_pairs.parquet
+- config_name: languages
+  data_files:
+  - split: train
+    path: data/training/metadata/languages.parquet
+---
+
 # Ancient Scripts Decipherment Datasets
 
 Collated datasets for the paper:
@@ -143,6 +183,41 @@ See [`cognate_pipeline/README.md`](cognate_pipeline/README.md) for installation
 - [j-luo93/NeuroDecipher](https://github.com/j-luo93/NeuroDecipher) — predecessor (Ugaritic/Linear B decipherment)
 - [j-luo93/xib](https://github.com/j-luo93/xib) — earlier Iberian codebase
 
+## Programmatic Access
+
+### Via HuggingFace `datasets`
+
+```python
+from datasets import load_dataset
+
+# Load cognate pairs (Parquet, fast)
+ds = load_dataset("Nacryos/ancient-scripts-datasets", "cognate_pairs_inherited")
+
+# Available configs: cognate_pairs_inherited, cognate_pairs_borrowing,
+# cognate_pairs_similarity, phylo_pairs, languages
+```
+
+### Via Python SDK
+
+For typed access with phylogenetic filtering, IPA parsing, and validation sets:
+
+```bash
+pip install git+https://github.com/Project-Phaistos/ancient-scripts-datasets-NEW.git
+```
+
+```python
+from ancient_scripts_data import AncientScriptsDataset
+
+ds = AncientScriptsDataset()  # auto-downloads from HF
+pairs = ds.cognate_pairs("inherited", phylo_filter="close_sister", limit=1000)
+lex = ds.lexicon("lat")
+rel = ds.phylo_relation("lat", "spa")  # near_ancestral
+```
+
+See the [SDK documentation](https://github.com/Project-Phaistos/ancient-scripts-datasets-NEW) for full API reference.
+
+---
+
 ## Paper Citation
 
 ```bibtex

data/training/cognate_pairs/cognate_pairs_borrowing.parquet

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+size 498740

data/training/cognate_pairs/cognate_pairs_inherited.parquet

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data/training/cognate_pairs/cognate_pairs_similarity.parquet

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+size 5008175

data/training/metadata/languages.parquet

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+size 13741

data/training/metadata/phylo_pairs.parquet

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+version https://git-lfs.github.com/spec/v1
+oid sha256:81574b8c202c2539c3d06c45099e6bb665df655293b36651d0fb3ca0f17cc140
+size 416000