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arXiv · 2508.03828

MegaWika 2: A More Comprehensive Multilingual Collection of Articles and their Sources

Samuel Barham·Chandler May·Benjamin Van Durme
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Abstract

We introduce MegaWika 2, a large, multilingual dataset of Wikipedia articles with their citations and scraped web sources; articles are represented in a rich data structure, and scraped source texts are stored inline with precise character offsets of their citations in the article text. MegaWika 2 is a major upgrade from the original MegaWika, spanning six times as many articles and twice as many fully scraped citations. Both MegaWika and MegaWika 2 support report generation research ; whereas MegaWika also focused on supporting question answering and retrieval applications, MegaWika 2 is designed to support fact checking and analyses across time and language.

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Samuel Barham, Chandler May, Benjamin Van Durme. 2025-08-05. MegaWika 2: A More Comprehensive Multilingual Collection of Articles and their Sources. https://arxiv.org/abs/2508.03828

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