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Publish shard CC-MAIN-2026-08/01037

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  1. README.md +10 -10
  2. data/CC-MAIN-2026-08/01037.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 **18,511,054 documents across 956 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 956 files of CC-MAIN-2026-08 (18,511,054 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 956 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~774.9 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) | ~39.2 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 26.5 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 83.5 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: ~774.9 GB of raw gzipped WARCs becomes **26.5 GB of Parquet** — a **96.6% total reduction** — containing 18,511,054 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 956 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 63h 43m 37s avg 3m 59s
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  Convert (HTML → MD) ██░░░░░░░░░░░░░░░░░░░░░░ total 5h 23m 35s avg 20s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 14h 51m 55s avg 55s
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  Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 52m 10s 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 **18,530,580 documents across 957 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 957 files of CC-MAIN-2026-08 (18,530,580 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 957 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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+ | Raw WARC (.warc.gz, downloaded) | ~775.7 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) | ~39.3 GB | ~3.7 TB | **-98.3%** vs HTML |
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  | Final Parquet (Zstd level 19) | 26.5 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 83.6 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: ~775.7 GB of raw gzipped WARCs becomes **26.5 GB of Parquet** — a **96.6% total reduction** — containing 18,530,580 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 957 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 63h 53m 6s avg 4m 0s
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  Convert (HTML → MD) ██░░░░░░░░░░░░░░░░░░░░░░ total 5h 23m 35s avg 20s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 14h 54m 41s avg 56s
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  Publish (HuggingFace) ██░░░░░░░░░░░░░░░░░░░░░░ total 6h 52m 10s avg 25s
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  ```
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data/CC-MAIN-2026-08/01037.parquet ADDED
@@ -0,0 +1,3 @@
 
 
 
 
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:42166e954374fa33108643948545db9a523350cb5fc66b2eb8481c725e06785b
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+ size 28214440
stats.csv CHANGED
@@ -601,6 +601,7 @@ CC-MAIN-2026-08,1033,19497,2571252370,91687106,29353234,2026-03-13T21:37:11Z,528
601
  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,451,0,221,19
 
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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-2026-08,1034,19755,2614735568,97795767,31017081,2026-03-13T21:50:26Z,559,0,239,14
602
  CC-MAIN-2026-08,1035,19588,2603711856,91277216,28452626,2026-03-13T21:59:56Z,480,0,88,15
603
  CC-MAIN-2026-08,1036,19702,2637361133,97836643,32045924,2026-03-13T22:11:11Z,451,0,221,19
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+ CC-MAIN-2026-08,1037,19526,2569195777,90636673,28214440,2026-03-13T22:23:26Z,569,0,166,0
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  CC-MAIN-2026-08,1101,19721,2641197765,95719568,30240239,2026-03-13T09:59:33Z,564,0,296,0
606
  CC-MAIN-2026-08,1102,19562,2608129691,99280759,31748974,2026-03-13T10:28:07Z,1518,0,191,0
607
  CC-MAIN-2026-08,1103,19270,2517580674,89253461,28361470,2026-03-13T10:55:39Z,1380,0,268,0