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Publish shard CC-MAIN-2026-08/00269

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  1. README.md +13 -13
  2. data/CC-MAIN-2026-08/00269.parquet +3 -0
  3. stats.csv +2 -1
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 **2,798,148 documents across 143 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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@@ -166,28 +166,28 @@ 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 143 files of CC-MAIN-2026-08 (2,798,148 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 143 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~115.9 GB | ~83 TB | — |
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- | HTML extracted (uncompressed) | 346.7 GB | ~295 TB | — |
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- | Packed markdown WARC (.md.warc.gz) | ~5.8 GB | ~3.7 TB | **-98.3%** vs HTML |
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- | Final Parquet (Zstd level 19) | 4.0 GB | ~2.9 TB | **-31.9%** 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 346.7 GB of uncompressed HTML down to 12.4 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 68.0%.
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- End to end: ~115.9 GB of raw gzipped WARCs becomes **4.0 GB of Parquet** — a **96.6% total reduction** — containing 2,798,148 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 143 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 4h 54m 40s avg 2m 3s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 16m 2s avg 6s
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- Export (Parquet) ████░░░░░░░░░░░░░░░░░░░░ total 58m 42s avg 24s
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- Publish (HuggingFace) ████████░░░░░░░░░░░░░░░░ total 1h 43m 5s avg 43s
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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 **2,817,866 documents across 144 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 144 files of CC-MAIN-2026-08 (2,817,866 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 144 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~116.7 GB | ~83 TB | — |
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+ | HTML extracted (uncompressed) | 349.1 GB | ~295 TB | — |
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+ | Packed markdown WARC (.md.warc.gz) | ~5.9 GB | ~3.7 TB | **-98.3%** vs HTML |
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+ | Final Parquet (Zstd level 19) | 4.0 GB | ~2.9 TB | **-32.0%** 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 349.1 GB of uncompressed HTML down to 12.5 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 68.0%.
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+ End to end: ~116.7 GB of raw gzipped WARCs becomes **4.0 GB of Parquet** — a **96.6% total reduction** — containing 2,817,866 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 144 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 4h 55m 59s avg 2m 3s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 16m 2s avg 6s
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+ Export (Parquet) ████░░░░░░░░░░░░░░░░░░░░ total 59m 5s avg 24s
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+ Publish (HuggingFace) ████████░░░░░░░░░░░░░░░░ total 1h 43m 17s avg 43s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/00269.parquet ADDED
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+ oid sha256:2a0a1c575b168e8c96cd98e49565dbae57f01ecfe91fbdd2ba762182517d3eb0
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+ size 29413489
stats.csv CHANGED
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+ CC-MAIN-2026-08,119,19231,2563038965,92964034,29641078,2026-03-13T07:52:37Z,111,0,19,12
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  CC-MAIN-2026-08,251,19610,2594898345,97558492,31917087,2026-03-13T06:42:12Z,277,0,23,136
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  CC-MAIN-2026-08,252,19240,2525928701,98163046,31104034,2026-03-13T06:47:10Z,238,0,49,10
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  CC-MAIN-2026-08,253,19312,2557230855,96017199,30399966,2026-03-13T06:51:42Z,130,0,23,117
 
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  CC-MAIN-2026-08,403,19320,2579048144,91406292,29375992,2026-03-13T06:49:29Z,198,0,33,98