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Publish shard CC-MAIN-2026-08/00352

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  1. README.md +10 -10
  2. data/CC-MAIN-2026-08/00352.parquet +3 -0
  3. stats.csv +1 -0
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 **17,944,824 documents across 927 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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@@ -164,27 +164,27 @@ 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 927 files of CC-MAIN-2026-08 (17,944,824 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 927 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~751.4 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 2.2 TB | ~295 TB | — |
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- | Packed markdown WARC (.md.warc.gz) | ~38.0 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 25.7 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 2.2 TB of uncompressed HTML down to 80.9 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: ~751.4 GB of raw gzipped WARCs becomes **25.7 GB of Parquet** — a **96.6% total reduction** — containing 17,944,824 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 927 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 59h 46m 42s avg 3m 52s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 4h 47m 46s avg 18s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 13h 42m 4s avg 53s
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  Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 40m 31s avg 25s
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  ```
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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 **17,964,055 documents across 928 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 928 files of CC-MAIN-2026-08 (17,964,055 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 928 files (measured) | 100,000 files (projected) | Reduction |
170
  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~752.2 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 2.2 TB | ~295 TB | — |
173
+ | Packed markdown WARC (.md.warc.gz) | ~38.1 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 25.7 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 2.2 TB of uncompressed HTML down to 81.0 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: ~752.2 GB of raw gzipped WARCs becomes **25.7 GB of Parquet** — a **96.6% total reduction** — containing 17,964,055 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 928 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 59h 57m 10s avg 3m 52s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 4h 47m 46s avg 18s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 13h 44m 44s avg 53s
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  Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 40m 31s avg 25s
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  ```
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data/CC-MAIN-2026-08/00352.parquet ADDED
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:db582140d1abe585b0d11519222a8f06cf84097b888b4df8c335cc5583b34d83
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+ size 30275599
stats.csv CHANGED
@@ -293,6 +293,7 @@ CC-MAIN-2026-08,348,19671,2610356850,95739818,30454981,2026-03-13T20:42:39Z,431,
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  CC-MAIN-2026-08,349,19533,2591710395,93588653,29936978,2026-03-13T20:55:15Z,0,577,203,12
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  CC-MAIN-2026-08,350,19432,2562615888,91646102,29091302,2026-03-13T21:06:26Z,479,0,177,14
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  CC-MAIN-2026-08,351,19601,2571162986,96301161,32049090,2026-03-13T21:15:41Z,0,435,120,24
 
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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
 
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  CC-MAIN-2026-08,349,19533,2591710395,93588653,29936978,2026-03-13T20:55:15Z,0,577,203,12
294
  CC-MAIN-2026-08,350,19432,2562615888,91646102,29091302,2026-03-13T21:06:26Z,479,0,177,14
295
  CC-MAIN-2026-08,351,19601,2571162986,96301161,32049090,2026-03-13T21:15:41Z,0,435,120,24
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+ CC-MAIN-2026-08,352,19231,2557508135,96230865,30275599,2026-03-13T21:28:41Z,628,0,160,0
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  CC-MAIN-2026-08,401,19441,2586676962,94334130,29618260,2026-03-13T11:41:00Z,0,0,33,0
298
  CC-MAIN-2026-08,402,19446,2552785517,96654791,30560442,2026-03-13T11:49:21Z,0,443,57,0
299
  CC-MAIN-2026-08,403,19320,2579048144,91406292,29341198,2026-03-13T11:56:46Z,0,414,29,0