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The influence of the document ranking in expert search

机译:文档排名对专家搜索的影响

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摘要

The retrieval effectiveness of the underlying document search component of an expert search engine can have an important impact on the effectiveness of the generated expert search results. In this large-scale study, we perform novel experiments in the context of the document search and expert search tasks of the TREC Enterprise track, to measure the influence that the performance of the document ranking has on the ranking of candidate experts. In particular, our experiments show that while the expert search system performance is related to the relevance of the retrieved documents, surprisingly, it is not always the case that increasing document search effectiveness causes an increase in expert search performance. Moreover, we simulate document rankings designed with expert search performance in mind and, through a failure analysis, show why even a perfect document ranking may not result in a perfect ranking of candidate experts.
机译:专家搜索引擎的基础文档搜索组件的检索效率可能会对所生成的专家搜索结果的有效性产生重要影响。在这项大规模研究中,我们在TREC Enterprise跟踪的文档搜索和专家搜索任务的背景下执行了新颖的实验,以测量文档排名的性能对候选专家排名的影响。特别地,我们的实验表明,尽管专家搜索系统的性能与检索到的文档的相关性有关,但令人惊讶的是,提高文档搜索效率并不总是导致专家搜索性能提高的情况。此外,我们模拟了考虑专家搜索性能而设计的文档排名,并通过故障分析显示了为什么即使是完美的文档排名也可能无法导致候选专家的完美排名。

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