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Publish shard CC-MAIN-2026-08/01339

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  1. README.md +10 -10
  2. data/CC-MAIN-2026-08/01339.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 **26,435,475 documents across 1367 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 1367 files of CC-MAIN-2026-08 (26,435,475 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 1367 files (measured) | 100,000 files (projected) | Reduction |
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  |---|---|---|---|
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  | Raw WARC (.warc.gz, downloaded) | ~1.1 TB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 3.2 TB | ~295 TB | — |
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- | Packed markdown WARC (.md.warc.gz) | ~56.0 GB | ~3.7 TB | **-98.3%** vs HTML |
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- | Final Parquet (Zstd level 19) | 37.8 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 3.2 TB of uncompressed HTML down to 119.2 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 68.3%.
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- End to end: ~1.1 TB of raw gzipped WARCs becomes **37.8 GB of Parquet** — a **96.6% total reduction** — containing 26,435,475 clean markdown documents.
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  ### Processing Times
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- Pipeline timings across 1367 shards of CC-MAIN-2026-08:
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  ```
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- Download (raw WARC) ████████████████████████ total 105h 41m 24s avg 4m 38s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 7h 49m 11s avg 20s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 26h 5m 1s avg 1m 8s
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  Publish (HuggingFace) █░░░░░░░░░░░░░░░░░░░░░░░ total 8h 23m 0s avg 22s
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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 **26,455,077 documents across 1368 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
166
 
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+ Numbers below are actual measurements summed across all 1368 files of CC-MAIN-2026-08 (26,455,077 pages total), projected to the full crawl of 100,000 WARC files.
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+ | Stage | 1368 files (measured) | 100,000 files (projected) | Reduction |
170
  |---|---|---|---|
171
  | Raw WARC (.warc.gz, downloaded) | ~1.1 TB | ~83 TB | — |
172
  | HTML extracted (uncompressed) | 3.2 TB | ~295 TB | — |
173
+ | Packed markdown WARC (.md.warc.gz) | ~56.1 GB | ~3.7 TB | **-98.3%** vs HTML |
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+ | Final Parquet (Zstd level 19) | 37.9 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 3.2 TB of uncompressed HTML down to 119.3 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 68.3%.
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+ End to end: ~1.1 TB of raw gzipped WARCs becomes **37.9 GB of Parquet** — a **96.6% total reduction** — containing 26,455,077 clean markdown documents.
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  ### Processing Times
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+ Pipeline timings across 1368 shards of CC-MAIN-2026-08:
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  ```
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+ Download (raw WARC) ████████████████████████ total 105h 46m 30s avg 4m 38s
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  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 7h 49m 11s avg 20s
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+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 26h 6m 58s avg 1m 8s
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  Publish (HuggingFace) █░░░░░░░░░░░░░░░░░░░░░░░ total 8h 23m 0s avg 22s
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  ```
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data/CC-MAIN-2026-08/01339.parquet ADDED
@@ -0,0 +1,3 @@
 
 
 
 
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+ version https://git-lfs.github.com/spec/v1
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+ oid sha256:560b65c0b36183bc21be52d91365f33ca07a2e71d6b993b8e885180d8bc9287c
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+ size 30736240
stats.csv CHANGED
@@ -911,6 +911,7 @@ CC-MAIN-2026-08,1335,19445,2547826342,94548063,29547506,2026-03-14T03:19:19Z,483
911
  CC-MAIN-2026-08,1336,19440,2570626453,93069186,29226498,2026-03-14T03:32:28Z,676,0,145,25
912
  CC-MAIN-2026-08,1337,19745,2608657474,95214137,30001998,2026-03-14T03:42:23Z,383,0,206,16
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  CC-MAIN-2026-08,1338,19330,2586714698,97658016,30134122,2026-03-14T03:52:29Z,545,0,36,15
 
914
  CC-MAIN-2026-08,1401,19441,2586676962,94334130,29606093,2026-03-13T09:50:34Z,230,0,90,0
915
  CC-MAIN-2026-08,1402,19641,2571912489,94392153,29376558,2026-03-13T10:21:08Z,1035,0,797,0
916
  CC-MAIN-2026-08,1403,19445,2589553842,99835858,31697837,2026-03-13T10:51:00Z,1248,0,530,0
 
911
  CC-MAIN-2026-08,1336,19440,2570626453,93069186,29226498,2026-03-14T03:32:28Z,676,0,145,25
912
  CC-MAIN-2026-08,1337,19745,2608657474,95214137,30001998,2026-03-14T03:42:23Z,383,0,206,16
913
  CC-MAIN-2026-08,1338,19330,2586714698,97658016,30134122,2026-03-14T03:52:29Z,545,0,36,15
914
+ CC-MAIN-2026-08,1339,19602,2578543129,95441204,30736240,2026-03-14T03:59:05Z,306,0,117,0
915
  CC-MAIN-2026-08,1401,19441,2586676962,94334130,29606093,2026-03-13T09:50:34Z,230,0,90,0
916
  CC-MAIN-2026-08,1402,19641,2571912489,94392153,29376558,2026-03-13T10:21:08Z,1035,0,797,0
917
  CC-MAIN-2026-08,1403,19445,2589553842,99835858,31697837,2026-03-13T10:51:00Z,1248,0,530,0