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Publish shard CC-MAIN-2026-08/00171

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  1. README.md +11 -11
  2. data/CC-MAIN-2026-08/00171.parquet +3 -0
  3. stats.csv +3 -2
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 **15,630,176 documents across 808 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 808 files of CC-MAIN-2026-08 (15,630,176 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 808 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~654.9 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 1.9 TB | ~295 TB | — |
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- | Packed markdown WARC (.md.warc.gz) | ~33.1 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 22.4 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 1.9 TB of uncompressed HTML down to 70.5 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: ~654.9 GB of raw gzipped WARCs becomes **22.4 GB of Parquet** — a **96.6% total reduction** — containing 15,630,176 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 808 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 46h 16m 58s avg 3m 26s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 3h 1m 14s avg 13s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 10h 4m 33s avg 44s
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- Publish (HuggingFace) ███░░░░░░░░░░░░░░░░░░░░░ total 5h 57m 22s 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 **15,649,701 documents across 809 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 809 files of CC-MAIN-2026-08 (15,649,701 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 809 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~655.7 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 1.9 TB | ~295 TB | — |
173
+ | Packed markdown WARC (.md.warc.gz) | ~33.2 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 22.4 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 1.9 TB of uncompressed HTML down to 70.6 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: ~655.7 GB of raw gzipped WARCs becomes **22.4 GB of Parquet** — a **96.6% total reduction** — containing 15,649,701 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 809 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 46h 24m 58s avg 3m 26s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 3h 1m 14s avg 13s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 10h 5m 48s avg 44s
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+ Publish (HuggingFace) ███░░░░░░░░░░░░░░░░░░░░░ total 5h 57m 58s avg 26s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/00171.parquet ADDED
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:20de5e24149a9916b94d8088d130419cdd4230c840483ac0c4ddcb81dd84a909
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+ size 30216223
stats.csv CHANGED
@@ -171,6 +171,7 @@ CC-MAIN-2026-08,167,19479,2608667162,97765916,30323458,2026-03-13T16:28:01Z,199,
171
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174
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  CC-MAIN-2026-08,252,19240,2525928701,98163046,31104034,2026-03-13T06:47:10Z,238,0,49,10
@@ -303,7 +304,7 @@ CC-MAIN-2026-08,500,19181,2553899338,90002434,29044547,2026-03-13T17:41:45Z,450,
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  CC-MAIN-2026-08,169,19473,2563389563,95532787,31173231,2026-03-13T16:34:31Z,153,0,41,15
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  CC-MAIN-2026-08,170,19524,2590221583,98934338,32004895,2026-03-13T16:37:46Z,149,0,44,0
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+ CC-MAIN-2026-08,171,19525,2569500927,95427462,30216223,2026-03-13T18:12:18Z,480,0,75,0
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  CC-MAIN-2026-08,250,19200,2541559671,94959737,30214413,2026-03-13T17:42:47Z,511,0,85,19
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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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  CC-MAIN-2026-08,252,19240,2525928701,98163046,31104034,2026-03-13T06:47:10Z,238,0,49,10
 
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  CC-MAIN-2026-08,501,19446,2575344077,97014418,30587925,2026-03-13T17:42:47Z,0,0,86,19
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  CC-MAIN-2026-08,502,19517,2581863236,92435616,29177803,2026-03-13T17:51:21Z,0,408,78,24
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  CC-MAIN-2026-08,503,19510,2607183133,97101474,30068205,2026-03-13T18:03:29Z,0,473,62,7
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  CC-MAIN-2026-08,552,19402,2594817630,94092761,30309254,2026-03-13T06:48:30Z,211,0,46,80
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  CC-MAIN-2026-08,553,19856,2617133708,99106486,30365588,2026-03-13T06:52:51Z,116,0,23,120
 
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  CC-MAIN-2026-08,1010,19381,2515296461,94273139,29874503,2026-03-13T18:03:30Z,465,0,62,7
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+ CC-MAIN-2026-08,1011,19545,2606224725,91771846,29436891,2026-03-13T18:11:32Z,566,0,68,18
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