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Publish shard CC-MAIN-2026-08/02159

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  1. README.md +11 -11
  2. data/CC-MAIN-2026-08/02159.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 **15,105,260 documents across 781 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 781 files of CC-MAIN-2026-08 (15,105,260 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 781 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~633.0 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 1.8 TB | ~295 TB | — |
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  | Packed markdown WARC (.md.warc.gz) | ~32.0 GB | ~3.7 TB | **-98.3%** vs HTML |
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- | Final Parquet (Zstd level 19) | 21.6 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 1.8 TB of uncompressed HTML down to 68.1 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: ~633.0 GB of raw gzipped WARCs becomes **21.6 GB of Parquet** — a **96.6% total reduction** — containing 15,105,260 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 781 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 44h 22m 7s avg 3m 24s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 1h 50m 33s avg 8s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 9h 25m 15s avg 43s
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- Publish (HuggingFace) ███░░░░░░░░░░░░░░░░░░░░░ total 5h 49m 45s 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 **15,124,787 documents across 782 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 782 files of CC-MAIN-2026-08 (15,124,787 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 782 files (measured) | 100,000 files (projected) | Reduction |
170
  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~633.8 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 1.8 TB | ~295 TB | — |
173
  | Packed markdown WARC (.md.warc.gz) | ~32.0 GB | ~3.7 TB | **-98.3%** vs HTML |
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+ | Final Parquet (Zstd level 19) | 21.7 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 1.8 TB of uncompressed HTML down to 68.2 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: ~633.8 GB of raw gzipped WARCs becomes **21.7 GB of Parquet** — a **96.6% total reduction** — containing 15,124,787 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 782 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 44h 26m 1s avg 3m 24s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 1h 50m 33s avg 8s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 9h 25m 52s avg 43s
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+ Publish (HuggingFace) ███░░░░░░░░░░░░░░░░░░░░░ total 5h 50m 15s avg 26s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/02159.parquet ADDED
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+ oid sha256:960f7120fa1de148714477a377406bde9fba3d09eb9ad3a8c2267de2072a3571
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+ size 28761531
stats.csv CHANGED
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