arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 2008.00202cs.IRcs.DL
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基于内容的文献推荐系统中的文本相似度研究

Contextual Document Similarity for Content-based Literature Recommender Systems

Malte Ostendorff

摘要:

为了应对日益增长的信息过载,越来越多的数字图书馆采用基于内容的推荐系统。这些系统传统上推荐相关的文件的帮助下,相似性的措施。然而,当前的文档相似性度量仅仅区分相似和不相似的文档。这种简化对于大量的文件尤其重要,因为这些文件涵盖了一个主题的各个方面,并且经常在数字图书馆中找到。然而,这些相似性度量忽略了相似性涉及的方面。因此,相似性的背景仍然不明确。在这篇博士论文中,我们探讨了上下文文档相似性度量,即,将文档相似性确定为两个文档及其相似性上下文的三元组的方法。在这里,上下文是相似性的进一步说明。例如,在科学领域,研究论文可以在背景、方法或发现方面相似。关于一个或多个给定上下文的相似性的度量将增强推荐系统。也就是说,用户将能够通过制定查询的文件及其上下文的相似性来探索文档集合。因此,我们的研究目标是开发和评估的推荐系统的基础上上下文相似性。底层技术将应用已建立的相似性度量以及神经方法,同时利用从文档及其文本之间的链接中获得的语义特征。

英文摘要:

To cope with the ever-growing information overload, an increasing number of digital libraries employ content-based recommender systems. These systems traditionally recommend related documents with the help of similarity measures. However, current document similarity measures simply distinguish between similar and dissimilar documents. This simplification is especially crucial for extensive documents, which cover various facets of a topic and are often found in digital libraries. Still, these similarity measures neglect to what facet the similarity relates. Therefore, the context of the similarity remains ill-defined. In this doctoral thesis, we explore contextual document similarity measures, i.e., methods that determine document similarity as a triple of two documents and the context of their similarity. The context is here a further specification of the similarity. For example, in the scientific domain, research papers can be similar with respect to their background, methodology, or findings. The measurement of similarity in regards to one or more given contexts will enhance recommender systems. Namely, users will be able to explore document collections by formulating queries in terms of documents and their contextual similarities. Thus, our research objective is the development and evaluation of a recommender system based on contextual similarity. The underlying techniques will apply established similarity measures and as well as neural approaches while utilizing semantic features obtained from links between documents and their text.

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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