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Datasets:
open-index
/
draft

Tasks:
Text Generation
Feature Extraction
Modalities:
Text
Languages:
English
Size:
1M<n<10M
Tags:
common-crawl
web-crawl
markdown
text
License:
Dataset card Files
xet
Community
tamnd commited on
Commit
06804d4
·
verified ·
1 Parent(s): eb55859

Publish shards CC-MAIN-2026-08/01311–01320 (10 files)

Browse files
Files changed (16) hide show
  1. README.md +12 -12
  2. charts/compression_pie.png +2 -2
  3. charts/size_chart.png +2 -2
  4. charts/timing_chart.png +2 -2
  5. charts/totals_chart.png +2 -2
  6. data/CC-MAIN-2026-08/01311.parquet +3 -0
  7. data/CC-MAIN-2026-08/01312.parquet +3 -0
  8. data/CC-MAIN-2026-08/01313.parquet +3 -0
  9. data/CC-MAIN-2026-08/01314.parquet +3 -0
  10. data/CC-MAIN-2026-08/01315.parquet +3 -0
  11. data/CC-MAIN-2026-08/01316.parquet +3 -0
  12. data/CC-MAIN-2026-08/01317.parquet +3 -0
  13. data/CC-MAIN-2026-08/01318.parquet +3 -0
  14. data/CC-MAIN-2026-08/01319.parquet +3 -0
  15. data/CC-MAIN-2026-08/01320.parquet +3 -0
  16. stats.csv +18 -10
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 **10,588,125 documents across 548 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 548 files of CC-MAIN-2026-08 (10,588,125 pages total), projected to the full crawl of 100,000 WARC files.
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- | Stage | 548 files (measured) | 100,000 files (projected) | Reduction |
170
  |---|---|---|---|
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- | Raw WARC (.warc.gz, downloaded) | ~444.2 GB | ~83 TB | — |
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  | HTML extracted (uncompressed) | 1.3 TB | ~295 TB | — |
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- | Packed markdown WARC (.md.warc.gz) | ~22.4 GB | ~3.7 TB | **-98.3%** vs HTML |
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- | Final Parquet (Zstd level 19) | 15.2 GB | ~2.9 TB | **-32.3%** 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 1.3 TB of uncompressed HTML down to 47.7 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: ~444.2 GB of raw gzipped WARCs becomes **15.2 GB of Parquet** — a **96.6% total reduction** — containing 10,588,125 clean markdown documents.
179
 
180
  ### Processing Times
181
 
182
- Pipeline timings across 548 shards of CC-MAIN-2026-08:
183
 
184
  ```
185
- Download (raw WARC) ████████████████████████ total 23h 52m 14s avg 2m 36s
186
  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 35m 42s avg 3s
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- Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 5h 1m 43s avg 33s
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- Publish (HuggingFace) █████░░░░░░░░░░░░░░░░░░░ total 5h 23m 36s avg 35s
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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.
34
 
35
+ The dataset currently includes crawl **CC-MAIN-2026-08** with **10,764,020 documents across 557 shards**. We plan to add more snapshots over time.
36
 
37
  Open Index is released under the **Open Data Commons Attribution License (ODC-By) v1.0**, the same license used by Common Crawl.
38
 
 
164
 
165
  ### Compression Ratios
166
 
167
+ Numbers below are actual measurements summed across all 557 files of CC-MAIN-2026-08 (10,764,020 pages total), projected to the full crawl of 100,000 WARC files.
168
 
169
+ | Stage | 557 files (measured) | 100,000 files (projected) | Reduction |
170
  |---|---|---|---|
171
+ | Raw WARC (.warc.gz, downloaded) | ~451.5 GB | ~83 TB | — |
172
  | HTML extracted (uncompressed) | 1.3 TB | ~295 TB | — |
173
+ | Packed markdown WARC (.md.warc.gz) | ~22.8 GB | ~3.7 TB | **-98.3%** vs HTML |
174
+ | Final Parquet (Zstd level 19) | 15.4 GB | ~2.9 TB | **-32.3%** vs packed WARC |
175
 
176
+ The big win is the HTML → Markdown step: trafilatura strips all tags, scripts, styles, navigation, and ads, keeping only the main content. This cuts 1.3 TB of uncompressed HTML down to 48.5 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%.
177
 
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+ End to end: ~451.5 GB of raw gzipped WARCs becomes **15.4 GB of Parquet** — a **96.6% total reduction** — containing 10,764,020 clean markdown documents.
179
 
180
  ### Processing Times
181
 
182
+ Pipeline timings across 557 shards of CC-MAIN-2026-08:
183
 
184
  ```
185
+ Download (raw WARC) ████████████████████████ total 24h 9m 29s avg 2m 36s
186
  Convert (HTML → MD) █░░░░░░░░░░░░░░░░░░░░░░░ total 35m 42s avg 3s
187
+ Export (Parquet) █████░░░░░░░░░░░░░░░░░░░ total 5h 5m 3s avg 32s
188
+ Publish (HuggingFace) █████░░░░░░░░░░░░░░░░░░░ total 5h 41m 26s avg 36s
189
  ```
190
 
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  ### Dataset Charts
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@@ -88,6 +88,7 @@ CC-MAIN-2026-08,84,19499,2594563617,92512745,30337810,2026-03-13T13:24:46Z,185,0
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  CC-MAIN-2026-08,103,19511,2593312947,96164480,30296223,2026-03-13T06:47:48Z,187,0,46,61
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