The Mass Information inNetwork Drives the Innovation of retrieval Techniques

摘要

This article first analysis 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 fro 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.