tomron87/hebrew-wikipedia-sentences-corpus

Hebrew Wikipedia Sentences Corpus

A corpus of 10,999,257 cleaned, deduplicated Hebrew sentences extracted from 366,610 Hebrew Wikipedia articles.

Dataset Description

This dataset contains Hebrew sentences extracted from Hebrew Wikipedia (crawled 2026-02). Each sentence has been cleaned, filtered for quality, and deduplicated. The dataset is intended for Hebrew NLP tasks including language modeling, text classification, NER, sentence similarity, and more.

Source

Hebrew Wikipedia via the MediaWiki API.

Processing Pipeline

1. Crawl — fetched all Hebrew Wikipedia articles via generator=allpages + prop=revisions
2. Extract — converted wikitext to plain text, split into sentences using rule-based tokenization, filtered by length (5–50 words), Hebrew ratio (≥50%), and content quality
3. Deduplicate — removed exact duplicate sentences via SHA-256 hashing

Schema

Column	Type	Description
sentence_id	string	Unique ID (wiki_{article_id}_{sentence_idx})
sentence	string	Clean Hebrew sentence
article_id	int64	Wikipedia article page ID
article_title	string	Article title
categories	string	Pipe-separated Wikipedia categories
sentence_position	int64	Position of sentence within the article (0-indexed)
word_count	int64	Number of whitespace-delimited tokens
hebrew_ratio	float64	Ratio of Hebrew characters to total alphabetic characters

Statistics

Metric	Value
Total sentences	10,999,257
Unique articles	366,610
Word count (mean)	16.6
Word count (median)	15
Word count (range)	5–50
Hebrew ratio (mean)	0.982
Hebrew ratio (median)	1.000

Usage

from datasets import load_dataset

ds = load_dataset("tomron87/hebrew-wikipedia-sentences-corpus")
print(ds["train"][0])

Intended Uses

• Hebrew language modeling and pretraining
• Text classification and NER
• Sentence similarity and semantic search
• Hebrew NLP research and benchmarking

Limitations

• Register: Wikipedia text is encyclopedic and formal; it does not represent spoken Hebrew, social media, or informal writing.
• Temporal: Content reflects Hebrew Wikipedia as of 2026-02. Articles added or modified after this date are not included.
• Bias: Wikipedia's coverage is uneven across topics and may reflect systemic biases in editor demographics.

License

CC BY-SA 3.0, inherited from Wikipedia content. See Creative Commons Attribution-ShareAlike 3.0.

Citation

@dataset{hebrew_wikipedia_sentences,
  title = {Hebrew Wikipedia Sentences},
  author = {Tom Ron},
  year = {2026},
  url = {https://huggingface.co/datasets/tomron/hebrew-wikipedia-sentences},
  license = {CC BY-SA 3.0},
  note = {Generated on 2026-02-14}
}