网上海量信息引发检索技术变革

Mass Information in Network Drives the Innovation of Retrieval Techniques

本文从检索目标和技术路线、信息综合排序方法、用于优选信息的评价标准等方面 ,分析了网上海量信息正在引发检索技术变革的内容 ,介绍了旨在从网上海量信息中高效率地选取有用信息的检索技术方案 :用“信息重要性向量”表达信息的综合特征 ,用“信息筛”高效率地优选信息。

This article firstly analyses the innovation of retrieval techniques in retrieval target,retrieval approaches,integrated information sequencing method and the criteria of optimum information,driven by the mass information resources in network.It then introduces a retrieval technical approach for selecting the useful information efficiently in the mass information resources in network,that is :it optimizes the information with “an information screen” by using the importance vector to express the integrated features.