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Publish shard CC-MAIN-2026-08/00401

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  1. README.md +13 -13
  2. data/CC-MAIN-2026-08/00401.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 **874,019 documents across 44 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 44 files of CC-MAIN-2026-08 (874,019 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 44 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~35.7 GB | ~83 TB | — |
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- | HTML extracted (uncompressed) | 109.4 GB | ~295 TB | — |
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- | Packed markdown WARC (.md.warc.gz) | ~1.7 GB | ~3.7 TB | **-98.4%** vs HTML |
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  | Final Parquet (Zstd level 19) | 1.2 GB | ~2.9 TB | **-31.3%** 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 109.4 GB of uncompressed HTML down to 3.7 GB of markdown — a **98.4% reduction** — before any file-level compression is applied. Parquet with Zstd level 19 then compresses the markdown a further 67.7%.
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- End to end: ~35.7 GB of raw gzipped WARCs becomes **1.2 GB of Parquet** — a **96.6% total reduction** — containing 874,019 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 44 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 23m 9s avg 31s
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- Convert (HTML → MD) ███████████████░░░░░░░░ total 16m 2s avg 21s
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- Export (Parquet) ███████░░░░░░░░░░░░░░░░░ total 7m 5s avg 9s
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- Publish (HuggingFace) ████░░░░░░░░░░░░░░░░░░░ total 4m 23s avg 5s
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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 **893,391 documents across 45 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 45 files of CC-MAIN-2026-08 (893,391 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 45 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~36.5 GB | ~83 TB | — |
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+ | HTML extracted (uncompressed) | 111.9 GB | ~295 TB | — |
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+ | Packed markdown WARC (.md.warc.gz) | ~1.8 GB | ~3.7 TB | **-98.4%** vs HTML |
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  | Final Parquet (Zstd level 19) | 1.2 GB | ~2.9 TB | **-31.3%** 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 111.9 GB of uncompressed HTML down to 3.8 GB of markdown — a **98.4% reduction** — before any file-level compression is applied. Parquet with Zstd level 19 then compresses the markdown a further 67.7%.
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+ End to end: ~36.5 GB of raw gzipped WARCs becomes **1.2 GB of Parquet** — a **96.6% total reduction** — containing 893,391 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 45 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 25m 20s avg 33s
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+ Convert (HTML → MD) ███████████████░░░░░░░░ total 16m 2s avg 21s
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+ Export (Parquet) ███████░░░░░░░░░░░░░░░░░ total 7m 25s avg 9s
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+ Publish (HuggingFace) ████░░░░░░░░░░░░░░░░░░░ total 5m 44s avg 7s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/00401.parquet ADDED
@@ -0,0 +1,3 @@
 
 
 
 
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:85abb505af8dc9e24696857ec60c2c7cd362ea9faf10e8193d6b02ac20ae540e
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+ size 30404753
stats.csv CHANGED
@@ -37,7 +37,8 @@ CC-MAIN-2026-08,34,19325,2535567258,94812059,30450886,2026-03-13T06:05:00Z,0,115
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  CC-MAIN-2026-08,35,19398,2565260259,94010975,30284205,2026-03-13T06:06:37Z,0,72,17,3
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  CC-MAIN-2026-08,36,19367,2577531843,94004962,29843828,2026-03-13T06:08:12Z,0,69,18,2
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  CC-MAIN-2026-08,37,19314,2558501740,95109133,29807147,2026-03-13T06:37:54Z,0,63,19,96
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- CC-MAIN-2026-08,101,19267,2514449658,96925434,30875010,2026-03-13T06:38:43Z,179,0,50,0
 
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  CC-MAIN-2026-08,251,19610,2594898345,97558492,31917087,2026-03-13T06:39:56Z,277,0,23,0
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  CC-MAIN-2026-08,401,19517,2605589961,95609438,30404753,2026-03-13T06:39:20Z,218,0,47,0
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  CC-MAIN-2026-08,551,19551,2609034951,89980913,29167227,2026-03-13T06:39:55Z,280,0,20,0
 
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  CC-MAIN-2026-08,35,19398,2565260259,94010975,30284205,2026-03-13T06:06:37Z,0,72,17,3
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  CC-MAIN-2026-08,36,19367,2577531843,94004962,29843828,2026-03-13T06:08:12Z,0,69,18,2
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  CC-MAIN-2026-08,37,19314,2558501740,95109133,29807147,2026-03-13T06:37:54Z,0,63,19,96
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+ CC-MAIN-2026-08,38,19372,2618600358,93097292,29730152,2026-03-13T06:40:26Z,131,0,20,0
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+ CC-MAIN-2026-08,101,19267,2514449658,96925434,30875010,2026-03-13T06:40:05Z,179,0,50,81
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  CC-MAIN-2026-08,251,19610,2594898345,97558492,31917087,2026-03-13T06:39:56Z,277,0,23,0
43
  CC-MAIN-2026-08,401,19517,2605589961,95609438,30404753,2026-03-13T06:39:20Z,218,0,47,0
44
  CC-MAIN-2026-08,551,19551,2609034951,89980913,29167227,2026-03-13T06:39:55Z,280,0,20,0