搜索引擎倒排文件的一种分块组织技术

A Blocking Inverted File Structure for Search Engine

检索效率对大规模信息检索系统至关重要 .本文基于Web搜索应用背景 ,针对用户查询的统计特性 ,提出了一种分块组织倒排文件的方法 .通过建立检索性能模型 ,进行分析和仿真实验 ,结果表明这一方法下的检索算法可以有效的减少检索执行时间 ,并得到这一组织方式中分块参数的优化选择方法 .

The efficiency of retrieval system is crucial for large scale information retrieval systems.By analyzing the documents and the users' query logs of a real search engine,a blocking inverted file structure is proposed.Simulation results show that the retrieval algorithm under the new organization of the inverted file can decrease its execution time significantly,and the optimal parameter selection for this blocking organization is discussed.