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Publish shard CC-MAIN-2026-08/01221

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  1. README.md +10 -10
  2. data/CC-MAIN-2026-08/01221.parquet +3 -0
  3. stats.csv +4 -3
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 **54,764,592 documents across 2826 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 2826 files of CC-MAIN-2026-08 (54,764,592 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 2826 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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  | Raw WARC (.warc.gz, downloaded) | ~2.2 TB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 6.6 TB | ~295 TB | — |
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- | Packed markdown WARC (.md.warc.gz) | ~115.8 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 78.1 GB | ~2.9 TB | **-32.5%** 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 6.6 TB of uncompressed HTML down to 246.4 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 68.3%.
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- End to end: ~2.2 TB of raw gzipped WARCs becomes **78.1 GB of Parquet** — a **96.6% total reduction** — containing 54,764,592 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 2826 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 252h 58m 21s avg 5m 22s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 13h 28m 50s avg 17s
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- Export (Parquet) ██████░░░░░░░░░░░░░░░░░░ total 65h 23m 51s avg 1m 23s
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- Publish (HuggingFace) █░░░░░░░░░░░░░░░░░░░░░░░ total 20h 10m 39s avg 25s
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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 **54,784,006 documents across 2827 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 2827 files of CC-MAIN-2026-08 (54,784,006 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 2827 files (measured) | 100,000 files (projected) | Reduction |
170
  |---|---|---|---|
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  | Raw WARC (.warc.gz, downloaded) | ~2.2 TB | ~83 TB | — |
172
  | HTML extracted (uncompressed) | 6.6 TB | ~295 TB | — |
173
+ | Packed markdown WARC (.md.warc.gz) | ~115.9 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 78.1 GB | ~2.9 TB | **-32.5%** 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 6.6 TB of uncompressed HTML down to 246.5 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 68.3%.
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+ End to end: ~2.2 TB of raw gzipped WARCs becomes **78.1 GB of Parquet** — a **96.6% total reduction** — containing 54,784,006 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 2827 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 253h 7m 45s avg 5m 22s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 13h 28m 50s avg 17s
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+ Export (Parquet) ██████░░░░░░░░░░░░░░░░░░ total 65h 26m 16s avg 1m 23s
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+ Publish (HuggingFace) █░░░░░░░░░░░░░░░░░░░░░░░ total 20h 11m 33s avg 25s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/01221.parquet ADDED
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+ size 30134703
stats.csv CHANGED
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