检索结果多样化的性能预测

摘要

Currently,the research on the query performance prediction mainly focuses on the relevance performance prediction of the search results in response to the given query,however,the search engine is improving the diversification performance of search results continuously,and therefore,it is a meaningful work to predict the diversification performance of the search results.For the diversification performance prediction,the effectiveness of traditional predictors based on the score analysis is relatively lower,so,this paper puts forward several predictors,which are devised to predict the diversification performance in response to the query,and tested their effectiveness on several runs.The experimental results show that the proposed predictors are valuable.%目前查询性能预测的研究,主要集中在查询结果相关性性能的评估上,而搜索引擎正不断提高检索结果的多样化性能,因此预测其多样化性能是一项有意义的工作.在多样化性能的预测上,传统基于得分分布算法的有效性较低.为此,提出了预测查询结果多样化性能的算法,并在运行结果上检验了提出的算法的有效性.实验结果显示,提出的预测算法是有价值的.