arXivDaily arXiv每日学术速递 周一至周五更新
arXiv 1607.02641cs.IR
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随机相关模型

Randomised Relevance Model

Dominik Wurzer, Miles Osborne, Victor Lavrenko

摘要:

相关模型是一种著名的检索模型,能够产生有竞争力的结果。但是,由于它们使用了查询扩展,因此可能会非常慢。我们将两个变种的局部敏感哈希(LSH)到查询扩展过程中,解决这个缓慢。两个文件集的结果表明,我们可以获得大量减少的工作量,与一个小的降低效率。我们的方法被证明是添加剂时,修剪查询条件。

英文摘要:

Relevance Models are well-known retrieval models and capable of producing competitive results. However, because they use query expansion they can be very slow. We address this slowness by incorporating two variants of locality sensitive hashing (LSH) into the query expansion process. Results on two document collections suggest that we can obtain large reductions in the amount of work, with a small reduction in effectiveness. Our approach is shown to be additive when pruning query terms.

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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