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Publish shard CC-MAIN-2026-08/00342

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  1. README.md +10 -10
  2. data/CC-MAIN-2026-08/00342.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 **16,738,228 documents across 865 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 865 files of CC-MAIN-2026-08 (16,738,228 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 865 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~701.1 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 2.0 TB | ~295 TB | — |
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  | Packed markdown WARC (.md.warc.gz) | ~35.5 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 24.0 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 2.0 TB of uncompressed HTML down to 75.4 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 68.2%.
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- End to end: ~701.1 GB of raw gzipped WARCs becomes **24.0 GB of Parquet** — a **96.6% total reduction** — containing 16,738,228 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 865 shards of CC-MAIN-2026-08:
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  ```
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  Download (raw WARC) ████████████████████████ total 51h 16m 49s avg 3m 33s
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- Convert (HTML → MD) ██░░░░░░░░░░░░░░░░░░░░░░ total 4h 24m 57s avg 18s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 11h 39m 13s avg 48s
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- Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 17m 46s 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 **16,757,508 documents across 866 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 866 files of CC-MAIN-2026-08 (16,757,508 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 866 files (measured) | 100,000 files (projected) | Reduction |
170
  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~701.9 GB | ~83 TB | — |
172
  | HTML extracted (uncompressed) | 2.0 TB | ~295 TB | — |
173
  | Packed markdown WARC (.md.warc.gz) | ~35.5 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 24.0 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 2.0 TB of uncompressed HTML down to 75.5 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 68.2%.
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+ End to end: ~701.9 GB of raw gzipped WARCs becomes **24.0 GB of Parquet** — a **96.6% total reduction** — containing 16,757,508 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 866 shards of CC-MAIN-2026-08:
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  ```
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  Download (raw WARC) ████████████████████████ total 51h 16m 49s avg 3m 33s
186
+ Convert (HTML → MD) ██░░░░░░░░░░░░░░░░░░░░░░ total 4h 30m 54s avg 18s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 11h 43m 53s avg 48s
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+ Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 18m 1s avg 26s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/00342.parquet ADDED
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:468d5d836aaaec5f55ebe002cc5f625b73348a6ddf402070f4617a6e89b6443f
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+ size 29660197
stats.csv CHANGED
@@ -272,6 +272,7 @@ CC-MAIN-2026-08,338,19353,2529304740,96452087,29944312,2026-03-13T19:01:19Z,0,44
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  CC-MAIN-2026-08,339,19120,2524716337,91482854,28628334,2026-03-13T19:09:41Z,0,427,71,13
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  CC-MAIN-2026-08,340,19791,2598516873,95489194,31690779,2026-03-13T19:18:46Z,0,438,82,60
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  CC-MAIN-2026-08,341,19270,2590609551,89987204,28709565,2026-03-13T19:26:11Z,0,396,77,13
 
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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-2026-08,403,19320,2579048144,91406292,29341198,2026-03-13T11:56:46Z,0,414,29,0
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  CC-MAIN-2026-08,1261,19531,2552270985,92940606,29109279,2026-03-13T19:09:41Z,368,0,70,13
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  CC-MAIN-2026-08,340,19791,2598516873,95489194,31690779,2026-03-13T19:18:46Z,0,438,82,60
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  CC-MAIN-2026-08,341,19270,2590609551,89987204,28709565,2026-03-13T19:26:11Z,0,396,77,13
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+ CC-MAIN-2026-08,342,19280,2567257308,93681727,29660197,2026-03-13T19:36:52Z,0,357,280,0
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  CC-MAIN-2026-08,401,19441,2586676962,94334130,29618260,2026-03-13T11:41:00Z,0,0,33,0
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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-2026-08,403,19320,2579048144,91406292,29341198,2026-03-13T11:56:46Z,0,414,29,0
 
598
  CC-MAIN-2026-08,1261,19531,2552270985,92940606,29109279,2026-03-13T19:09:41Z,368,0,70,13
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  CC-MAIN-2026-08,1262,19583,2619099150,96747461,29974359,2026-03-13T19:18:11Z,431,0,83,27
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  CC-MAIN-2026-08,1263,19587,2594794008,96997494,30103094,2026-03-13T19:26:11Z,400,0,78,13
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+ CC-MAIN-2026-08,1264,19357,2587024454,96413559,29815462,2026-03-13T19:36:26Z,318,0,293,15
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  CC-MAIN-2026-08,1301,19417,2601765043,93758124,29790521,2026-03-13T11:40:27Z,0,0,0,0
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  CC-MAIN-2026-08,1302,19471,2592470194,95488689,29747494,2026-03-13T11:40:27Z,0,0,0,0
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  CC-MAIN-2026-08,1303,19681,2609544680,95027524,30250671,2026-03-13T11:40:27Z,0,0,0,0