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arXiv 2104.09656cs.CL
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"Don't quote me on that": Finding Mixtures of Sources in News Articles

Information Sciences Institue / University of Southern California(信息科学研究所 / 南加州大学)

Alexander Spangher, Nanyun Peng, Jonathan May, Emilio Ferrara

英文摘要:

Journalists publish statements provided by people, or \textit{sources} to contextualize current events, help voters make informed decisions, and hold powerful individuals accountable. In this work, we construct an ontological labeling system for sources based on each source's \textit{affiliation} and \textit{role}. We build a probabilistic model to infer these attributes for named sources and to describe news articles as mixtures of these sources. Our model outperforms existing mixture modeling and co-clustering approaches and correctly infers source-type in 80\% of expert-evaluated trials. Such work can facilitate research in downstream tasks like opinion and argumentation mining, representing a first step towards machine-in-the-loop \textit{computational journalism} systems.

机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。

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