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Publish shard CC-MAIN-2026-08/01258

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  1. README.md +10 -10
  2. data/CC-MAIN-2026-08/01258.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 **16,077,531 documents across 831 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 831 files of CC-MAIN-2026-08 (16,077,531 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 831 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~673.6 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) | ~34.1 GB | ~3.7 TB | **-98.3%** vs HTML |
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- | Final Parquet (Zstd level 19) | 23.0 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 72.5 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: ~673.6 GB of raw gzipped WARCs becomes **23.0 GB of Parquet** — a **96.6% total reduction** — containing 16,077,531 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 831 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 48h 2m 49s avg 3m 28s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 3h 49m 21s avg 16s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 10h 43m 1s avg 46s
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  Publish (HuggingFace) ███░░░░░░░░░░░░░░░░░░░░░ total 6h 6m 50s avg 26s
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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 **16,096,666 documents across 832 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 832 files of CC-MAIN-2026-08 (16,096,666 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 832 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~674.4 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 1.9 TB | ~295 TB | — |
173
  | Packed markdown WARC (.md.warc.gz) | ~34.1 GB | ~3.7 TB | **-98.3%** vs HTML |
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+ | Final Parquet (Zstd level 19) | 23.1 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 72.6 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: ~674.4 GB of raw gzipped WARCs becomes **23.1 GB of Parquet** — a **96.6% total reduction** — containing 16,096,666 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 832 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 48h 9m 35s avg 3m 28s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 3h 49m 21s avg 16s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 10h 44m 11s avg 46s
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  Publish (HuggingFace) ███░░░░░░░░░░░░░░░░░░░░░ total 6h 6m 50s avg 26s
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  ```
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data/CC-MAIN-2026-08/01258.parquet ADDED
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:84e71dc40981f42a70eff65715e48fd1f7437148b9e3a27a25ed64d0f76e6613
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+ size 28960395
stats.csv CHANGED
@@ -564,6 +564,7 @@ CC-MAIN-2026-08,1254,19385,2574775357,90964705,29287533,2026-03-13T18:12:59Z,301
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  CC-MAIN-2026-08,1255,19793,2590593189,91962640,29397083,2026-03-13T18:20:26Z,347,0,117,12
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  CC-MAIN-2026-08,1256,19623,2586404184,93667218,29799650,2026-03-13T18:29:57Z,396,0,170,30
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  CC-MAIN-2026-08,1257,19311,2574452525,92827599,28980328,2026-03-13T18:37:56Z,350,0,127,14
 
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  CC-MAIN-2026-08,1301,19417,2601765043,93758124,29790521,2026-03-13T11:40:27Z,0,0,0,0
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  CC-MAIN-2026-08,1302,19471,2592470194,95488689,29747494,2026-03-13T11:40:27Z,0,0,0,0
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  CC-MAIN-2026-08,1303,19681,2609544680,95027524,30250671,2026-03-13T11:40:27Z,0,0,0,0
 
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  CC-MAIN-2026-08,1255,19793,2590593189,91962640,29397083,2026-03-13T18:20:26Z,347,0,117,12
565
  CC-MAIN-2026-08,1256,19623,2586404184,93667218,29799650,2026-03-13T18:29:57Z,396,0,170,30
566
  CC-MAIN-2026-08,1257,19311,2574452525,92827599,28980328,2026-03-13T18:37:56Z,350,0,127,14
567
+ CC-MAIN-2026-08,1258,19135,2554477198,92165066,28960395,2026-03-13T18:45:41Z,406,0,70,0
568
  CC-MAIN-2026-08,1301,19417,2601765043,93758124,29790521,2026-03-13T11:40:27Z,0,0,0,0
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  CC-MAIN-2026-08,1302,19471,2592470194,95488689,29747494,2026-03-13T11:40:27Z,0,0,0,0
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  CC-MAIN-2026-08,1303,19681,2609544680,95027524,30250671,2026-03-13T11:40:27Z,0,0,0,0