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Publish shard CC-MAIN-2026-08/00349

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  1. README.md +9 -9
  2. data/CC-MAIN-2026-08/00349.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 **17,595,283 documents across 909 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 909 files of CC-MAIN-2026-08 (17,595,283 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 909 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~736.8 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) | ~37.3 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 25.2 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 79.3 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: ~736.8 GB of raw gzipped WARCs becomes **25.2 GB of Parquet** — a **96.6% total reduction** — containing 17,595,283 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 909 shards of CC-MAIN-2026-08:
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  ```
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  Download (raw WARC) ████████████████████████ total 57h 28m 57s avg 3m 47s
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- Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 4h 30m 54s avg 17s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 13h 5m 40s avg 51s
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  Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 33m 34s 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 **17,614,816 documents across 910 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 910 files of CC-MAIN-2026-08 (17,614,816 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 910 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~737.6 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 2.1 TB | ~295 TB | — |
173
  | Packed markdown WARC (.md.warc.gz) | ~37.3 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 25.2 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 79.4 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: ~737.6 GB of raw gzipped WARCs becomes **25.2 GB of Parquet** — a **96.6% total reduction** — containing 17,614,816 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 910 shards of CC-MAIN-2026-08:
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  ```
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  Download (raw WARC) ████████████████████████ total 57h 28m 57s avg 3m 47s
186
+ Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 4h 40m 31s avg 18s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 13h 9m 3s avg 52s
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  Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 33m 34s avg 25s
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  ```
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data/CC-MAIN-2026-08/00349.parquet ADDED
@@ -0,0 +1,3 @@
 
 
 
 
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:c4cd2de18a7a986788098af9cc805dfd35ae5d0f0349cc38f73d81ed35306652
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+ size 29936978
stats.csv CHANGED
@@ -287,6 +287,7 @@ CC-MAIN-2026-08,345,19638,2571646305,92700336,29370025,2026-03-13T20:08:56Z,582,
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  CC-MAIN-2026-08,346,19473,2585582152,94779939,29804017,2026-03-13T20:18:11Z,477,0,73,17
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  CC-MAIN-2026-08,347,19365,2567296398,94354460,30053465,2026-03-13T20:31:26Z,627,0,165,21
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  CC-MAIN-2026-08,348,19671,2610356850,95739818,30454981,2026-03-13T20:42:39Z,431,0,223,13
 
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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-2026-08,346,19473,2585582152,94779939,29804017,2026-03-13T20:18:11Z,477,0,73,17
288
  CC-MAIN-2026-08,347,19365,2567296398,94354460,30053465,2026-03-13T20:31:26Z,627,0,165,21
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  CC-MAIN-2026-08,348,19671,2610356850,95739818,30454981,2026-03-13T20:42:39Z,431,0,223,13
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+ CC-MAIN-2026-08,349,19533,2591710395,93588653,29936978,2026-03-13T20:55:15Z,0,577,203,0
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  CC-MAIN-2026-08,401,19441,2586676962,94334130,29618260,2026-03-13T11:41:00Z,0,0,33,0
292
  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