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Publish shard CC-MAIN-2026-08/01036

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  1. README.md +10 -10
  2. data/CC-MAIN-2026-08/01036.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 **18,393,468 documents across 950 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 950 files of CC-MAIN-2026-08 (18,393,468 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 950 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~770.0 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) | ~39.0 GB | ~3.7 TB | **-98.3%** vs HTML |
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- | Final Parquet (Zstd level 19) | 26.3 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 82.9 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: ~770.0 GB of raw gzipped WARCs becomes **26.3 GB of Parquet** — a **96.6% total reduction** — containing 18,393,468 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 950 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 62h 59m 35s avg 3m 58s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 5h 14m 31s avg 19s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 14h 33m 33s avg 55s
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  Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 50m 26s 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 **18,413,170 documents across 951 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 951 files of CC-MAIN-2026-08 (18,413,170 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 951 files (measured) | 100,000 files (projected) | Reduction |
170
  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~770.8 GB | ~83 TB | — |
172
  | HTML extracted (uncompressed) | 2.2 TB | ~295 TB | — |
173
  | Packed markdown WARC (.md.warc.gz) | ~39.0 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 83.0 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: ~770.8 GB of raw gzipped WARCs becomes **26.4 GB of Parquet** — a **96.6% total reduction** — containing 18,413,170 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 951 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 63h 7m 6s avg 3m 58s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 5h 14m 31s avg 19s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 14h 37m 14s avg 55s
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  Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 50m 26s avg 25s
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  ```
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data/CC-MAIN-2026-08/01036.parquet ADDED
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:8c1f7d6e382a10054c1d742ab70b8e2db587e572e0a64c7183a2b60882166b7f
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+ size 32045924
stats.csv CHANGED
@@ -596,6 +596,7 @@ CC-MAIN-2026-08,1032,19411,2577154917,95600845,29642029,2026-03-13T21:25:11Z,457
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  CC-MAIN-2026-08,1033,19497,2571252370,91687106,29353234,2026-03-13T21:37:11Z,528,0,186,14
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  CC-MAIN-2026-08,1034,19755,2614735568,97795767,31017081,2026-03-13T21:50:26Z,559,0,239,14
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  CC-MAIN-2026-08,1101,19721,2641197765,95719568,30240239,2026-03-13T09:59:33Z,564,0,296,0
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  CC-MAIN-2026-08,1102,19562,2608129691,99280759,31748974,2026-03-13T10:28:07Z,1518,0,191,0
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  CC-MAIN-2026-08,1103,19270,2517580674,89253461,28361470,2026-03-13T10:55:39Z,1380,0,268,0
 
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  CC-MAIN-2026-08,1033,19497,2571252370,91687106,29353234,2026-03-13T21:37:11Z,528,0,186,14
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  CC-MAIN-2026-08,1034,19755,2614735568,97795767,31017081,2026-03-13T21:50:26Z,559,0,239,14
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  CC-MAIN-2026-08,1035,19588,2603711856,91277216,28452626,2026-03-13T21:59:56Z,480,0,88,15
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+ CC-MAIN-2026-08,1036,19702,2637361133,97836643,32045924,2026-03-13T22:11:11Z,451,0,221,0
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  CC-MAIN-2026-08,1101,19721,2641197765,95719568,30240239,2026-03-13T09:59:33Z,564,0,296,0
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  CC-MAIN-2026-08,1102,19562,2608129691,99280759,31748974,2026-03-13T10:28:07Z,1518,0,191,0
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  CC-MAIN-2026-08,1103,19270,2517580674,89253461,28361470,2026-03-13T10:55:39Z,1380,0,268,0