| --- |
| language: |
| - id |
| license: cc0-1.0 |
| task_categories: |
| - text-generation |
| pretty_name: IndoCleanCorpus |
| --- |
| |
| # IndoCleanCorpus |
|
|
| A large-scale cleaned Indonesian text corpus, built from multiple open sources and processed through a multi-stage quality filtering and deduplication pipeline. |
|
|
| ## Source Datasets |
|
|
| | Dataset | Description | |
| |---|---| |
| | [Lyon28/Corpus-Indonesia](https://huggingface.co/datasets/Lyon28/Corpus-Indonesia) | General Indonesian text corpus | |
| | [DamarJati/indocorpus-sastra](https://huggingface.co/datasets/DamarJati/indocorpus-sastra) | Indonesian literary corpus | |
| | [indonesian-nlp/wikipedia-id](https://huggingface.co/datasets/indonesian-nlp/wikipedia-id) | Indonesian Wikipedia dump | |
|
|
| ## Processing Pipeline |
|
|
| The raw merged corpus of **19,814,163** documents was cleaned through the following sequential stages: |
|
|
| | Stage | Remaining Docs | Removed | |
| |---|---|---| |
| | Raw input | 19,814,163 | — | |
| | Boilerplate filter | 19,811,935 | 2,228 | |
| | Length filter | 14,575,984 | 5,235,951 | |
| | Character ratio filter | 14,377,694 | 198,290 | |
| | Repetition filter | 14,376,725 | 969 | |
| | Language filter (Indonesian) | 13,528,694 | 848,031 | |
| | Exact deduplication | 13,431,107 | 97,587 | |
| | Near-deduplication | 13,411,142 | 19,965 | |
| | **Final** | **13,411,132** | **6,403,031** | |
|
|
| **Overall retention rate: 67.68%** — roughly 1 in 3 documents were removed. |
| **Pipeline runtime:** ~6.7 hours (23,995 seconds). |
|
|
| ### Filter Descriptions |
|
|
| - **Boilerplate filter** — removes templated or auto-generated content (nav menus, footers, repeated headers) |
| - **Length filter** — removes documents that are too short or too long to be useful |
| - **Character ratio filter** — removes documents with abnormal ratios of punctuation, digits, or non-alphabetic characters |
| - **Repetition filter** — removes documents with excessive repeated n-grams or lines |
| - **Language filter** — retains only documents classified as Indonesian (`id`) |
| - **Exact deduplication** — removes byte-identical duplicate documents |
| - **Near-deduplication** — removes near-duplicate documents using MinHash LSH |
|
|
| ## Usage |
|
|
| ```python |
| from datasets import load_dataset |
| |
| ds = load_dataset("AiRukua/IndoCleanCorpus") |
| ``` |
|
|
| ## Dataset Statistics |
|
|
| - **Final document count:** 13,411,132 |
| - **Format:** Parquet (16 part files, ~2.2 GB total) |
| - **Language:** Indonesian (id) |
|
|
| ## License |
|
|
| Source datasets are openly licensed. This dataset is released under [CC0 1.0](https://creativecommons.org/publicdomain/zero/1.0/). |
