当查询扩展失败时

Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval Pub Date : 2003-07-28 DOI:10.1145/860435.860514

B. Billerbeck, J. Zobel

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引用次数: 24

摘要

通过扩展查询，可以提高查询在信息检索中的有效性。这种技术会自动引入在统计上可能与预期主题上的文档匹配的其他查询术语。然而，查询扩展技术依赖于固定的参数。我们对改变这些参数的影响的研究表明，使用固定值的策略是有问题的。

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When query expansion fails

The effectiveness of queries in information retrieval can be improved through query expansion. This technique automatically introduces additional query terms that are statistically likely to match documents on the intended topic. However, query expansion techniques rely on fixed parameters. Our investigation of the effect of varying these parameters shows that the strategy of using fixed values is questionable.

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Proceedings of the 26th annual international ACM SIGIR conference on Research and development in informaion retrieval

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