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UTILIZING PSEUDO-RELEVANCE FEEDBACK IN FUSION-BASED RETRIEVAL

机译:在基于融合的检索中使用伪相关反馈

摘要

An exemplary method includes: determining a pool of documents, wherein each document is within at least one of a plurality of lists, each of the lists results from executing a query on a corpus, and the corpus comprises at least the pool of documents; determining a first ranking of documents within the pool of documents based at least in part on first scores computed for respective documents within the pool; estimating relevance to the specified query at least of respective documents within the first ranking, wherein the relevance is estimated without user feedback regarding the relevance; and determining a second ranking of documents within the pool based at least in part on second scores computed at least for respective documents within the first ranking, wherein the second score for a given document is computed based at least in part on the estimated relevance of at least the given document.
机译:一种示例性方法包括:确定文档池,其中每个文档都在多个列表中的至少一个列表之内,每个列表都来自对语料库执行查询的结果,并且语料库至少包括文档池;至少部分地基于针对池中的各个文档计算的第一得分来确定文档池中的文档的第一排名;至少在第一排名内的各个文档中估计与指定查询的相关性,其中,在没有用户反馈相关性的情况下,估计相关性;至少部分地基于至少为第一排名内的各个文档计算的第二分数来确定池中文档的第二排名,其中给定文档的第二分数至少部分基于的估计相关性来计算至少是给定的文件。

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