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arXiv 2203.07640cs.CL
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基于可解释神经网络的无监督关键词提取

Unsupervised Keyphrase Extraction via Interpretable Neural Networks

Carnegie Mellon University(卡内基梅隆大学);Pacific Northwest National Laboratory(太平洋西北国家实验室);University of Washington(华盛顿大学)

Rishabh Joshi, Vidhisha Balachandran, Emily Saldanha, Maria Glenski, Svitlana Volkova, Yulia Tsvetkov

摘要:

关键词提取的目的是自动提取一个列表的“重要”的短语表示的关键概念,在一个文件。用于无监督关键短语提取的先前方法通过嵌入聚类或图中心性诉诸于短语重要性的启发式概念,需要广泛的领域专业知识。我们的工作提出了一个简单的替代方法,它定义为文档短语的关键词是突出的预测文档的主题。为此,我们提出了检查-一种方法,使用自我解释模型,通过测量输入短语对文档主题分类的下游任务的预测影响来识别文档中有影响力的关键短语。我们证明了这种新方法不仅满足了对ad-hoc关键词提取的需求,而且在两个领域的四个数据集中实现了无监督关键词提取的最新结果:科学出版物和新闻文章。

英文摘要:

Keyphrase extraction aims at automatically extracting a list of "important" phrases representing the key concepts in a document. Prior approaches for unsupervised keyphrase extraction resorted to heuristic notions of phrase importance via embedding clustering or graph centrality, requiring extensive domain expertise. Our work presents a simple alternative approach which defines keyphrases as document phrases that are salient for predicting the topic of the document. To this end, we propose INSPECT -- an approach that uses self-explaining models for identifying influential keyphrases in a document by measuring the predictive impact of input phrases on the downstream task of the document topic classification. We show that this novel method not only alleviates the need for ad-hoc heuristics but also achieves state-of-the-art results in unsupervised keyphrase extraction in four datasets across two domains: scientific publications and news articles.

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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