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Publish shard CC-MAIN-2026-08/02156

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  1. README.md +10 -10
  2. data/CC-MAIN-2026-08/02156.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 **14,909,623 documents across 771 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 771 files of CC-MAIN-2026-08 (14,909,623 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 771 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~624.9 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 1.8 TB | ~295 TB | — |
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  | Packed markdown WARC (.md.warc.gz) | ~31.6 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 21.4 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 1.8 TB of uncompressed HTML down to 67.2 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: ~624.9 GB of raw gzipped WARCs becomes **21.4 GB of Parquet** — a **96.6% total reduction** — containing 14,909,623 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 771 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 43h 28m 32s avg 3m 22s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 1h 50m 33s avg 8s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 9h 18m 11s avg 43s
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- Publish (HuggingFace) ███░░░░░░░░░░░░░░░░░░░░░ total 5h 45m 53s 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 **14,929,550 documents across 772 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 772 files of CC-MAIN-2026-08 (14,929,550 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 772 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~625.7 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 1.8 TB | ~295 TB | — |
173
  | Packed markdown WARC (.md.warc.gz) | ~31.6 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 21.4 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 1.8 TB of uncompressed HTML down to 67.3 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: ~625.7 GB of raw gzipped WARCs becomes **21.4 GB of Parquet** — a **96.6% total reduction** — containing 14,929,550 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 772 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 43h 31m 35s avg 3m 22s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 1h 50m 33s avg 8s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 9h 18m 36s avg 43s
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+ Publish (HuggingFace) ███░░░░░░░░░░░░░░░░░░░░░ total 5h 46m 47s avg 26s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/02156.parquet ADDED
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:d4bab59feb50d910b8324e12b2fc5b047c6182dcbac94b9061563e59d1031d3c
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+ size 30255289
stats.csv CHANGED
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  CC-MAIN-2026-08,2583,19288,2578146937,96424818,29805976,2026-03-13T16:00:54Z,1319,0,71,13
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  CC-MAIN-2026-08,2127,19399,2549889958,95568982,29906356,2026-03-13T15:58:26Z,317,0,127,13
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  CC-MAIN-2026-08,2155,19658,2616939549,93318117,29726149,2026-03-13T17:14:26Z,334,0,48,15
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+ CC-MAIN-2026-08,2156,19927,2657322438,97174427,30255289,2026-03-13T17:18:25Z,183,0,25,0
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  CC-MAIN-2026-08,2301,19498,2589050373,94698511,30163652,2026-03-13T13:54:08Z,261,0,33,0
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  CC-MAIN-2026-08,2302,19595,2575185844,96075881,29961924,2026-03-13T14:00:40Z,280,0,112,0
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  CC-MAIN-2026-08,2303,19594,2612324314,94525336,29944034,2026-03-13T14:06:16Z,305,0,30,0
 
714
  CC-MAIN-2026-08,2583,19288,2578146937,96424818,29805976,2026-03-13T16:00:54Z,1319,0,71,13
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  CC-MAIN-2026-08,2584,19484,2553112375,97091387,30756815,2026-03-13T16:21:41Z,1206,0,56,11
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  CC-MAIN-2026-08,2614,19566,2581388744,91738092,29557124,2026-03-13T17:13:26Z,207,0,47,15
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+ CC-MAIN-2026-08,2615,19805,2626737496,95131439,30207314,2026-03-13T17:17:25Z,208,0,34,54
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  CC-MAIN-2026-08,2801,19800,2573332995,93935647,29781057,2026-03-13T12:36:24Z,480,0,24,0
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  CC-MAIN-2026-08,2802,19377,2552826046,96926255,30379332,2026-03-13T12:44:04Z,402,0,56,0
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  CC-MAIN-2026-08,2810,19479,2567872535,94762671,29742907,2026-03-13T14:03:56Z,0,0,0,4