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arXiv · 2607.12441

WikiSTAR: A System for Shedding Light on the Hidden History of Scientific Wikipedia Articles

Omer Ehrlich·Nitzan Barzilay·Rona Aviram·Tom Hope
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Abstract

Wikipedia plays a key role in shaping public understanding of science, and its openly accessible revision history is a unique record of how scientific knowledge evolves over time. Yet scientifically meaningful revisions are obscured by the sheer volume of routine edits, leaving each article's scientific history hidden. We present WikiSTAR (Scientific Tracking of Article Revisions), an interactive system for exploring scientifically meaningful changes across an article's revision history. Using an LLM classifier with an expert-designed multi-label taxonomy, WikiSTAR first tags edit types such as the addition of technical terms, new research findings, and changes in scientific narrative. Then, through interactive views, an article's full revision history can be traced at any granularity - from aggregate trends that reveal when and in which sections scientific content was added or refined, down to individual edits - showing how scientific knowledge develops at a scale previously impossible. In a user study, experts from three domains found that WikiSTAR surfaced new patterns and research questions and enabled previously impractical analyses. We release our system, code and a human-annotated benchmark.

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Omer Ehrlich, Nitzan Barzilay, Rona Aviram, Tom Hope. 2026-08-30. WikiSTAR: A System for Shedding Light on the Hidden History of Scientific Wikipedia Articles. https://arxiv.org/abs/2607.12441

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