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Publish shard CC-MAIN-2026-08/00121

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  1. README.md +13 -13
  2. data/CC-MAIN-2026-08/00121.parquet +3 -0
  3. stats.csv +4 -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 **2,876,201 documents across 147 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 147 files of CC-MAIN-2026-08 (2,876,201 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 147 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~119.2 GB | ~83 TB | — |
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- | HTML extracted (uncompressed) | 356.4 GB | ~295 TB | — |
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- | Packed markdown WARC (.md.warc.gz) | ~6.0 GB | ~3.7 TB | **-98.3%** vs HTML |
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- | Final Parquet (Zstd level 19) | 4.1 GB | ~2.9 TB | **-32.0%** 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 356.4 GB of uncompressed HTML down to 12.8 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 68.0%.
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- End to end: ~119.2 GB of raw gzipped WARCs becomes **4.1 GB of Parquet** — a **96.6% total reduction** — containing 2,876,201 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 147 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 5h 0m 12s avg 2m 2s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 16m 2s avg 6s
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- Export (Parquet) ████░░░░░░░░░░░░░░░░░░░░ total 1h 0m 9s avg 24s
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- Publish (HuggingFace) ████████░░░░░░░░░░░░░░░░ total 1h 45m 33s avg 43s
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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 **2,933,953 documents across 150 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 150 files of CC-MAIN-2026-08 (2,933,953 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 150 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~121.6 GB | ~83 TB | — |
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+ | HTML extracted (uncompressed) | 363.4 GB | ~295 TB | — |
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+ | Packed markdown WARC (.md.warc.gz) | ~6.1 GB | ~3.7 TB | **-98.3%** vs HTML |
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+ | Final Parquet (Zstd level 19) | 4.2 GB | ~2.9 TB | **-32.0%** 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 363.4 GB of uncompressed HTML down to 13.0 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 68.0%.
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+ End to end: ~121.6 GB of raw gzipped WARCs becomes **4.2 GB of Parquet** — a **96.6% total reduction** — containing 2,933,953 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 150 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 5h 6m 48s avg 2m 2s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 16m 2s avg 6s
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+ Export (Parquet) ████░░░░░░░░░░░░░░░░░░░░ total 1h 1m 24s avg 24s
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+ Publish (HuggingFace) ████████░░░░░░░░░░░░░░░░ total 1h 45m 41s avg 42s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/00121.parquet ADDED
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:385efabcf9ca3a6712f374d7fd1954dd32756d6ea0271192a2798c8f8c64fbde
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+ size 29103618
stats.csv CHANGED
@@ -67,6 +67,7 @@ CC-MAIN-2026-08,117,19312,2591755909,98560571,30842988,2026-03-13T07:47:28Z,78,0
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  CC-MAIN-2026-08,251,19610,2594898345,97558492,31917087,2026-03-13T06:42:12Z,277,0,23,136
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@@ -86,7 +87,7 @@ CC-MAIN-2026-08,266,19542,2562231435,92724556,28951823,2026-03-13T07:44:49Z,183,
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- CC-MAIN-2026-08,270,19460,2592541531,96765785,29912858,2026-03-13T07:55:14Z,84,0,22,0
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@@ -128,6 +129,7 @@ CC-MAIN-2026-08,716,19676,2611420776,94959649,30429233,2026-03-13T07:44:51Z,200,
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  CC-MAIN-2026-08,718,19595,2583045607,94790124,30279291,2026-03-13T07:52:09Z,131,0,28,39
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  CC-MAIN-2026-08,719,19572,2625852803,96279252,30376974,2026-03-13T07:54:11Z,86,0,22,13
 
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@@ -146,3 +148,4 @@ CC-MAIN-2026-08,865,19211,2557891798,96126883,30876712,2026-03-13T07:45:54Z,183,
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  CC-MAIN-2026-08,120,19303,2550590149,96411866,30988634,2026-03-13T07:54:38Z,83,0,20,16
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+ CC-MAIN-2026-08,121,19266,2523641661,93311390,29103618,2026-03-13T07:57:05Z,126,0,20,0
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  CC-MAIN-2026-08,252,19240,2525928701,98163046,31104034,2026-03-13T06:47:10Z,238,0,49,10
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  CC-MAIN-2026-08,253,19312,2557230855,96017199,30399966,2026-03-13T06:51:42Z,130,0,23,117
 
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+ CC-MAIN-2026-08,270,19460,2592541531,96765785,29912858,2026-03-13T07:55:22Z,84,0,22,8
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  CC-MAIN-2026-08,402,19446,2552785517,96654791,30588984,2026-03-13T06:43:58Z,98,0,26,44
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  CC-MAIN-2026-08,719,19572,2625852803,96279252,30376974,2026-03-13T07:54:11Z,86,0,22,13
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