arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1606.04081cs.CLcs.IRcs.SI
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跨文档主题段关系识别的图-社区发现方法

Graph-Community Detection for Cross-Document Topic Segment Relationship Identification

Instituto Superior Técnico(高等技术学院);Carnegie Mellon University(卡内基梅隆大学)

Pedro Mota, Maxine Eskenazi, Luisa Coheur

摘要:

在本文中,我们提出了一个图-社区发现的方法来识别跨文档的关系,在主题段的水平。给定一组相关文档,我们通过聚类具有相似内容(主题)的片段来自动找到这些关系。在这种情况下,我们研究了不同的权重机制如何影响发现的单词社区,涉及到不同的主题中发现的文件。最后,我们测试了不同的映射函数来分配主题段到单词社区,确定哪些主题段被认为是等价的。通过执行此任务,可以实现高效的多文档浏览,因为当用户在一个文档中找到相关内容时,我们可以提供对其他文档中类似主题的访问。我们在两个不同的场景中部署我们的方法。一个是教育场景,需要在学习材料之间找到对等关系;另一个是社会背景下的一系列对话,学生讨论常见的话题。结果表明,我们提出的方法更好地发现等价关系的学习材料的文件,并在社会语音领域,其中表现最好的方法是聚类技术,获得了接近的结果。

英文摘要:

In this paper we propose a graph-community detection approach to identify cross-document relationships at the topic segment level. Given a set of related documents, we automatically find these relationships by clustering segments with similar content (topics). In this context, we study how different weighting mechanisms influence the discovery of word communities that relate to the different topics found in the documents. Finally, we test different mapping functions to assign topic segments to word communities, determining which topic segments are considered equivalent. By performing this task it is possible to enable efficient multi-document browsing, since when a user finds relevant content in one document we can provide access to similar topics in other documents. We deploy our approach in two different scenarios. One is an educational scenario where equivalence relationships between learning materials need to be found. The other consists of a series of dialogs in a social context where students discuss commonplace topics. Results show that our proposed approach better discovered equivalence relationships in learning material documents and obtained close results in the social speech domain, where the best performing approach was a clustering technique.

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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