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Publish shards CC-MAIN-2026-08/02301–02310 (10 files)

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README.md CHANGED
@@ -32,7 +32,7 @@ configs:
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  Open Index is a large-scale web text dataset built from [Common Crawl](https://commoncrawl.org). Every page goes through a pipeline that extracts the main content from raw HTML, converts it to clean Markdown using [trafilatura](https://github.com/adbar/trafilatura), and packages the result into Parquet files with full WARC metadata preserved.
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- The dataset currently includes crawl **CC-MAIN-2026-08** with **8,936,977 documents across 464 shards**. We plan to add more snapshots over time.
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  Open Index is released under the **Open Data Commons Attribution License (ODC-By) v1.0**, the same license used by Common Crawl.
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@@ -164,28 +164,28 @@ Empty conversions (pages where trafilatura could not extract meaningful content)
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  ### Compression Ratios
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- Numbers below are actual measurements summed across all 464 files of CC-MAIN-2026-08 (8,936,977 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 464 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~376.1 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 1.1 TB | ~295 TB | — |
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- | Packed markdown WARC (.md.warc.gz) | ~18.9 GB | ~3.7 TB | **-98.3%** vs HTML |
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- | Final Parquet (Zstd level 19) | 12.8 GB | ~2.9 TB | **-32.3%** vs packed WARC |
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- The big win is the HTML → Markdown step: trafilatura strips all tags, scripts, styles, navigation, and ads, keeping only the main content. This cuts 1.1 TB of uncompressed HTML down to 40.3 GB of markdown — a **98.3% reduction** — before any file-level compression is applied. Parquet with Zstd level 19 then compresses the markdown a further 68.2%.
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- End to end: ~376.1 GB of raw gzipped WARCs becomes **12.8 GB of Parquet** — a **96.6% total reduction** — containing 8,936,977 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 464 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 21h 11m 54s avg 2m 44s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 1h 37m 10s avg 12s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 5h 6m 48s avg 39s
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- Publish (HuggingFace) █████░░░░░░░░░░░░░░░░░░░ total 4h 43m 16s avg 36s
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  ```
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  ### Dataset Charts
 
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  Open Index is a large-scale web text dataset built from [Common Crawl](https://commoncrawl.org). Every page goes through a pipeline that extracts the main content from raw HTML, converts it to clean Markdown using [trafilatura](https://github.com/adbar/trafilatura), and packages the result into Parquet files with full WARC metadata preserved.
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+ The dataset currently includes crawl **CC-MAIN-2026-08** with **9,015,099 documents across 468 shards**. We plan to add more snapshots over time.
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  Open Index is released under the **Open Data Commons Attribution License (ODC-By) v1.0**, the same license used by Common Crawl.
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  ### Compression Ratios
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+ Numbers below are actual measurements summed across all 468 files of CC-MAIN-2026-08 (9,015,099 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 468 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~379.3 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 1.1 TB | ~295 TB | — |
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+ | Packed markdown WARC (.md.warc.gz) | ~19.1 GB | ~3.7 TB | **-98.3%** vs HTML |
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+ | Final Parquet (Zstd level 19) | 12.9 GB | ~2.9 TB | **-32.3%** vs packed WARC |
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+ The big win is the HTML → Markdown step: trafilatura strips all tags, scripts, styles, navigation, and ads, keeping only the main content. This cuts 1.1 TB of uncompressed HTML down to 40.6 GB of markdown — a **98.3% reduction** — before any file-level compression is applied. Parquet with Zstd level 19 then compresses the markdown a further 68.2%.
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+ End to end: ~379.3 GB of raw gzipped WARCs becomes **12.9 GB of Parquet** — a **96.6% total reduction** — containing 9,015,099 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 468 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 21h 25m 39s avg 2m 44s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 1h 37m 10s avg 12s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 5h 9m 7s avg 39s
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+ Publish (HuggingFace) █████░░░░░░░░░░░░░░░░░░░ total 4h 44m 6s avg 36s
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  ```
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  ### Dataset Charts
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