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Publish shard CC-MAIN-2026-08/00777

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  1. README.md +11 -11
  2. data/CC-MAIN-2026-08/00777.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 **18,452,054 documents across 953 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 953 files of CC-MAIN-2026-08 (18,452,054 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 953 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~772.5 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) | ~39.1 GB | ~3.7 TB | **-98.3%** vs HTML |
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- | Final Parquet (Zstd level 19) | 26.4 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 2.2 TB of uncompressed HTML down to 83.2 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: ~772.5 GB of raw gzipped WARCs becomes **26.4 GB of Parquet** — a **96.6% total reduction** — containing 18,452,054 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 953 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 63h 15m 38s avg 3m 58s
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  Convert (HTML → MD) ██░░░░░░░░░░░░░░░░░░░░░░ total 5h 23m 35s avg 20s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 14h 41m 21s avg 55s
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  Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 51m 19s 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 **18,471,643 documents across 954 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 954 files of CC-MAIN-2026-08 (18,471,643 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 954 files (measured) | 100,000 files (projected) | Reduction |
170
  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~773.3 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 2.2 TB | ~295 TB | — |
173
+ | Packed markdown WARC (.md.warc.gz) | ~39.2 GB | ~3.7 TB | **-98.3%** vs HTML |
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+ | Final Parquet (Zstd level 19) | 26.5 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 83.3 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: ~773.3 GB of raw gzipped WARCs becomes **26.5 GB of Parquet** — a **96.6% total reduction** — containing 18,471,643 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 954 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 63h 24m 36s avg 3m 59s
186
  Convert (HTML → MD) ██░░░░░░░░░░░░░░░░░░░░░░ total 5h 23m 35s avg 20s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 14h 44m 38s avg 55s
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  Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 51m 19s avg 25s
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  ```
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data/CC-MAIN-2026-08/00777.parquet ADDED
@@ -0,0 +1,3 @@
 
 
 
 
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:d5cb8f06f1c1654479c495260e3112b8751c981018cfa75d3574b2e9e0c91453
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+ size 31875194
stats.csv CHANGED
@@ -495,6 +495,7 @@ CC-MAIN-2026-08,773,19500,2566352439,93192712,28932729,2026-03-13T21:31:21Z,693,
495
  CC-MAIN-2026-08,774,19492,2603027070,95572469,30286810,2026-03-13T21:41:29Z,503,0,119,108
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  CC-MAIN-2026-08,775,19435,2565654435,92799653,30224744,2026-03-13T21:56:11Z,770,0,128,12
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  CC-MAIN-2026-08,776,19485,2557767648,97091370,30971578,2026-03-13T22:04:14Z,379,0,105,14
 
498
  CC-MAIN-2026-08,851,19575,2612873485,97000364,30911294,2026-03-13T06:41:39Z,163,0,37,204
499
  CC-MAIN-2026-08,852,19334,2546015208,94959847,30205044,2026-03-13T06:45:52Z,183,0,57,11
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  CC-MAIN-2026-08,853,19694,2567973975,95901932,30303494,2026-03-13T06:50:12Z,150,0,28,80
 
495
  CC-MAIN-2026-08,774,19492,2603027070,95572469,30286810,2026-03-13T21:41:29Z,503,0,119,108
496
  CC-MAIN-2026-08,775,19435,2565654435,92799653,30224744,2026-03-13T21:56:11Z,770,0,128,12
497
  CC-MAIN-2026-08,776,19485,2557767648,97091370,30971578,2026-03-13T22:04:14Z,379,0,105,14
498
+ CC-MAIN-2026-08,777,19589,2585482711,97636638,31875194,2026-03-13T22:16:47Z,538,0,197,0
499
  CC-MAIN-2026-08,851,19575,2612873485,97000364,30911294,2026-03-13T06:41:39Z,163,0,37,204
500
  CC-MAIN-2026-08,852,19334,2546015208,94959847,30205044,2026-03-13T06:45:52Z,183,0,57,11
501
  CC-MAIN-2026-08,853,19694,2567973975,95901932,30303494,2026-03-13T06:50:12Z,150,0,28,80