Novel information retrieval algorithm for historical Web
一种基于领域的历史网页检索算法*

In the case of a historical Web information retrieval system,the need for making such decisions do exist,when the query results shall be sorted by Web documents' publication time.As it is difficult to make such decisions precisely with normal algorithms,this paper proposed a novel algorithm to meet such demand,which was based on BM25 with a new concept domain introduced to help users more precisely describing their queries.The experiment shows that the F value of retrieval is increased by 56.68% when domain...