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Publish shard CC-MAIN-2026-08/00516

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  1. README.md +10 -10
  2. data/CC-MAIN-2026-08/00516.parquet +3 -0
  3. stats.csv +3 -2
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 **17,029,545 documents across 880 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 880 files of CC-MAIN-2026-08 (17,029,545 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 880 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~713.3 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 2.1 TB | ~295 TB | — |
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  | Packed markdown WARC (.md.warc.gz) | ~36.1 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 24.4 GB | ~2.9 TB | **-32.4%** 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 2.1 TB of uncompressed HTML down to 76.8 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: ~713.3 GB of raw gzipped WARCs becomes **24.4 GB of Parquet** — a **96.6% total reduction** — containing 17,029,545 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 880 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 53h 20m 59s avg 3m 38s
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  Convert (HTML → MD) ██░░░░░░░░░░░░░░░░░░░░░░ total 4h 30m 54s avg 18s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 12h 6m 56s avg 49s
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- Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 22m 40s avg 26s
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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 **17,049,073 documents across 881 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 881 files of CC-MAIN-2026-08 (17,049,073 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 881 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~714.1 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 2.1 TB | ~295 TB | — |
173
  | Packed markdown WARC (.md.warc.gz) | ~36.1 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 24.4 GB | ~2.9 TB | **-32.4%** 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 2.1 TB of uncompressed HTML down to 76.9 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: ~714.1 GB of raw gzipped WARCs becomes **24.4 GB of Parquet** — a **96.6% total reduction** — containing 17,049,073 clean markdown documents.
179
 
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  ### Processing Times
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+ Pipeline timings across 881 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 53h 28m 48s avg 3m 38s
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  Convert (HTML → MD) ██░░░░░░░░░░░░░░░░░░░░░░ total 4h 30m 54s avg 18s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 12h 8m 4s avg 49s
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+ Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 23m 24s avg 26s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/00516.parquet ADDED
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+ oid sha256:5f295418fa6648d0f26061796cd919db5bf59b438c3bf7c9981bd1fca61d606b
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+ size 30793330
stats.csv CHANGED
@@ -277,7 +277,7 @@ CC-MAIN-2026-08,340,19791,2598516873,95489194,31690779,2026-03-13T19:18:46Z,0,43
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@@ -339,6 +339,7 @@ CC-MAIN-2026-08,512,19409,2588385924,92008152,29561232,2026-03-13T19:21:41Z,365,
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  CC-MAIN-2026-08,343,19262,2539673272,90965417,28370002,2026-03-13T19:48:56Z,643,0,77,35
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+ CC-MAIN-2026-08,344,19491,2610007404,98525224,31295176,2026-03-13T19:58:19Z,466,0,65,22
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  CC-MAIN-2026-08,402,19446,2552785517,96654791,30560442,2026-03-13T11:49:21Z,0,443,57,0
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  CC-MAIN-2026-08,515,19316,2560287042,96839519,29930731,2026-03-13T19:49:44Z,600,0,77,14
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  CC-MAIN-2026-08,553,19856,2617133708,99106486,30365588,2026-03-13T06:52:51Z,116,0,23,120
 
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