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Publish shard CC-MAIN-2026-08/00289

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  1. README.md +12 -12
  2. data/CC-MAIN-2026-08/00289.parquet +3 -0
  3. stats.csv +2 -1
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 **4,079,602 documents across 209 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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@@ -166,28 +166,28 @@ 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 209 files of CC-MAIN-2026-08 (4,079,602 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 209 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~169.4 GB | ~83 TB | — |
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- | HTML extracted (uncompressed) | 504.9 GB | ~295 TB | — |
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  | Packed markdown WARC (.md.warc.gz) | ~8.6 GB | ~3.7 TB | **-98.3%** vs HTML |
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- | Final Parquet (Zstd level 19) | 5.8 GB | ~2.9 TB | **-32.1%** 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 504.9 GB of uncompressed HTML down to 18.2 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 68.1%.
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- End to end: ~169.4 GB of raw gzipped WARCs becomes **5.8 GB of Parquet** — a **96.6% total reduction** — containing 4,079,602 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 209 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 6h 50m 1s avg 1m 57s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 16m 2s avg 4s
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- Export (Parquet) ████░░░░░░░░░░░░░░░░░░░░ total 1h 24m 20s avg 24s
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- Publish (HuggingFace) ███████████░░░░░░░░░░░░░ total 3h 7m 56s avg 53s
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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 **4,099,072 documents across 210 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 210 files of CC-MAIN-2026-08 (4,099,072 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 210 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~170.2 GB | ~83 TB | — |
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+ | HTML extracted (uncompressed) | 507.2 GB | ~295 TB | — |
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  | Packed markdown WARC (.md.warc.gz) | ~8.6 GB | ~3.7 TB | **-98.3%** vs HTML |
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+ | Final Parquet (Zstd level 19) | 5.8 GB | ~2.9 TB | **-32.0%** 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 507.2 GB of uncompressed HTML down to 18.3 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 68.1%.
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+ End to end: ~170.2 GB of raw gzipped WARCs becomes **5.8 GB of Parquet** — a **96.6% total reduction** — containing 4,099,072 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 210 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 6h 51m 20s avg 1m 57s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 16m 2s avg 4s
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+ Export (Parquet) ████░░░░░░░░░░░░░░░░░░░░ total 1h 24m 39s avg 24s
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+ Publish (HuggingFace) ███████████░░░░░░░░░░░░░ total 3h 11m 48s avg 54s
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  ```
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  ### Dataset Charts
data/CC-MAIN-2026-08/00289.parquet ADDED
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:2de6c9e6a4efc3bf6a7bde6585099ae4a5fdded59da232e62baaa69607ecd6ed
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+ size 29674457
stats.csv CHANGED
@@ -84,7 +84,7 @@ CC-MAIN-2026-08,134,19342,2557433709,95423683,30581325,2026-03-13T08:35:45Z,97,0
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  CC-MAIN-2026-08,137,19287,2553682945,95902211,29221147,2026-03-13T08:43:59Z,77,0,18,6
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+ CC-MAIN-2026-08,138,19484,2561985017,91643960,29903683,2026-03-13T08:48:08Z,98,0,19,129
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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-2026-08,253,19312,2557230855,96017199,30399966,2026-03-13T06:51:42Z,130,0,23,117
 
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  CC-MAIN-2026-08,286,19521,2604143328,95453072,31055879,2026-03-13T08:39:07Z,116,0,23,13
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  CC-MAIN-2026-08,287,19554,2584064050,99218907,31127830,2026-03-13T08:43:14Z,116,0,22,106
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  CC-MAIN-2026-08,288,19531,2578268862,96281595,30566419,2026-03-13T08:46:57Z,92,0,26,103
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