Qualc_Dataset_en
Collection
For Ai/ML Training [English] Cleaned But Not Sure 100% • 8 items • Updated
id stringlengths 2 8 | url stringlengths 31 253 | title stringlengths 1 181 | text stringlengths 20 351k |
|---|---|---|---|
12 | https://en.wikipedia.org/wiki/Anarchism | Anarchism | Anarchism is a political philosophy and movement that is skeptical of all justifications for authority and seeks to abolish the institutions it claims maintain unnecessary coercion and hierarchy, typically including nation-states, and capitalism. Anarchism advocates for the replacement of the state with stateless socie... |
39 | https://en.wikipedia.org/wiki/Albedo | Albedo | Albedo (; ) is the fraction of sunlight that is diffusely reflected by a body. It is measured on a scale from 0 (corresponding to a black body that absorbs all incident radiation) to 1 (corresponding to a body that reflects all incident radiation). Surface albedo is defined as the ratio of radiosity Je to the irradianc... |
290 | https://en.wikipedia.org/wiki/A | A | A, or a, is the first letter and the first vowel of the Latin alphabet, used in the modern English alphabet, the alphabets of other western European languages and others worldwide. Its name in English is a (pronounced ), plural aes. It is similar in shape to the Ancient Greek letter Alpha, from which it derives. The up... |
303 | https://en.wikipedia.org/wiki/Alabama | Alabama | Alabama () is a state in the Southeastern region of the United States, bordered by Tennessee to the north; Georgia to the east; Florida and the Gulf of Mexico to the south; and Mississippi to the west. Alabama is the 30th largest by area and the 24th-most populous of the U.S. states. Alabama is nicknamed the Yellowhamm... |
305 | https://en.wikipedia.org/wiki/Achilles | Achilles | "In Greek mythology, Achilles ( ) or Achilleus () was a hero of the Trojan War who was known as bein(...TRUNCATED) |
307 | https://en.wikipedia.org/wiki/Abraham%20Lincoln | Abraham Lincoln | "Abraham Lincoln ( ; February 12, 1809 – April 15, 1865) was an American lawyer, politician, and s(...TRUNCATED) |
308 | https://en.wikipedia.org/wiki/Aristotle | Aristotle | "Aristotle (; Aristotélēs, ; 384–322 BC) was an Ancient Greek philosopher and polymath. His writ(...TRUNCATED) |
309 | https://en.wikipedia.org/wiki/An%20American%20in%20Paris | An American in Paris | "An American in Paris is a jazz-influenced symphonic poem (or tone poem) for orchestra by American c(...TRUNCATED) |
316 | https://en.wikipedia.org/wiki/Academy%20Award%20for%20Best%20Production%20Design | Academy Award for Best Production Design | "The Academy Award for Best Production Design recognizes achievement for art direction in film. The (...TRUNCATED) |
324 | https://en.wikipedia.org/wiki/Academy%20Awards | Academy Awards | "The Academy Awards, mainly known as the Oscars, are awards for artistic and technical merit for the(...TRUNCATED) |
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QualC Wikipedia English (Cleaned)
A cleaned English Wikipedia corpus prepared for large language model (LLM) pretraining.
This dataset is part of the QualC pretraining corpus collection and is intended to provide high-quality encyclopedic knowledge covering a wide range of domains including science, mathematics, history, geography, technology, engineering, medicine, politics, literature, and many more.
Source
- Wikimedia Wikipedia
- Dataset:
wikimedia/wikipedia- Configuration:
20231101.en
Cleaning Pipeline
The following preprocessing steps were applied:
- HTML entity decoding
- Unicode normalization (NFKC)
- Invalid Unicode replacement removal
- HTML tag removal
- Control character removal
- Whitespace normalization
- Duplicate document removal
- Short document filtering
URLs were intentionally preserved.
Validation Report
Before Cleaning
| Metric | Count |
|---|---|
| Documents | 1,000,000 |
| Empty Documents | 0 |
| Encoding Errors | 17 |
| HTML Tags | 5,314 |
| URLs | 30,115 |
After Cleaning
| Metric | Count |
|---|---|
| Documents | 999,734 |
| Empty Documents | 0 |
| Encoding Errors | 0 |
| HTML Tags | 0 |
| URLs | 29,803 |
Dataset Structure
Each example contains:
| Column | Description |
|---|---|
| id | Wikipedia article ID |
| url | Original Wikipedia URL |
| title | Article title |
| text | Cleaned article text |
Intended Use
This dataset is designed for:
- Foundation Model Pretraining
- Language Modeling
- Retrieval-Augmented Generation (RAG)
- NLP Research
- Educational AI
- Knowledge Representation
- Continual Pretraining
Limitations
- Based on the English Wikipedia snapshot (
20231101.en). - Contains encyclopedic content only.
- May include factual inaccuracies inherited from Wikipedia.
- URLs are preserved intentionally.
License
This dataset is derived from Wikimedia Wikipedia.
Original content is licensed under:
Creative Commons Attribution-ShareAlike 4.0 International (CC BY-SA 4.0)
Users must comply with the original Wikimedia licensing terms.
Attribution
Please credit Wikimedia Foundation when using this dataset.
Citation
@dataset{qualc_wikipedia_en,
title={QualC Wikipedia English (Cleaned)},
author={Nandhakumar M S},
year={2026},
publisher={Hugging Face}
}
Maintainer
Nandhakumar M S
Hugging Face:
https://huggingface.co/nandhakumarms
Acknowledgements
Special thanks to:
- Wikimedia Foundation
- Hugging Face
- The open-source AI community
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