分析维基百科内容真实性，发现近三成声明无来源支持
How Grounded is Wikipedia? A Study on Structured Evidential Support and Retrieval
- 构建人物传记类声明支撑数据集PeopleProfiles
- 22%段落声明无正文支持，30%正文声明无公开来源支持
- 揭示维基引用实践与标准不符，检索仍存挑战
维基百科是现代自然语言处理的重要资源，包含大量最新且有引用支持的信息。其信息可靠性——即内容是否基于引用来源——至关重要。本文分析维基百科的可信程度及细粒度证据的可检索性。为此，我们构建了PeopleProfiles——一个大规模、多层次的人物传记类维基文章声明支持标注数据集。研究发现：（1）约22%的维基百科文章段落声明在正文内无支持；（2）约30%的文章声明在公开引用来源中无支持；（3）实际维基引用行为常偏离正式规范。此外，即使使用近期推理重排序模型，复杂证据检索仍面临显著挑战。
原文摘要 · Abstract (English)
Wikipedia is a critical resource for modern NLP, serving as a rich repository of up-to-date and citation-backed information on a wide variety of subjects. The reliability of Wikipedia -- its groundedness in its cited sources -- is vital to this purpose. This work analyzes both how grounded Wikipedia is and how readily fine-grained grounding evidence can be retrieved. To this end, we introduce PeopleProfiles -- a large-scale, multi-level dataset of claim support annotations on biographical Wikipedia articles. We show that: (1) ~22% of claims in Wikipedia lead sections are unsupported by the article body; (2) ~30% of claims in the article body are unsupported by their publicly accessible sources; and (3) real-world Wikipedia citation practices often differ from documented standards. Finally, we show that complex evidence retrieval remains a challenge -- even for recent reasoning rerankers.
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