Upload README.md

README.md

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+# BECoS Processed
+
+Preprocessed BECoS dataset hosted on the Hugging Face Hub:
+[`larryshaw0079/becos_processed`](https://huggingface.co/datasets/larryshaw0079/becos_processed).
+
+## Contents
+
+| File                                               | Description                            |
+| -------------------------------------------------- | -------------------------------------- |
+| `train.zip.xx` (`train.zip.00`, `train.zip.01`, …) | Training split, byte-split for upload  |
+| `val.zip`                                          | Validation split                       |
+| `test.zip`                                         | Test split                             |
+
+## Download
+
+```bash
+pip install -U huggingface_hub
+huggingface-cli download larryshaw0079/becos_processed \
+    --repo-type dataset --local-dir becos_processed
+cd becos_processed
+```
+
+Or grab individual files from the [Files tab](https://huggingface.co/datasets/larryshaw0079/becos_processed/tree/main).
+
+## Decompress
+
+```bash
+# Training split — stream the chunks into unzip in one command
+cat train.zip.* | unzip -
+
+# Validation and test splits
+unzip -o val.zip  -d val  && rm val.zip
+unzip -o test.zip -d test && rm test.zip
+```
+
+> `unzip` needs a seekable input (it reads the central directory at the end of the
+> archive), so the chunks are joined on the fly and handed to `unzip` in a single
+> chained command. No standalone `train.zip` is kept after extraction.
+
+Result:
+
+```
+becos_processed/
+├── train/
+├── val/
+└── test/
+```
+
+## License & citation
+
+See the [dataset card](https://huggingface.co/datasets/larryshaw0079/becos_processed) for license and citation details.