The brief history of information retrieval technology and the concept of invisible Websites are described.In addition,the article shows how to efficiently retrieve and make use of these valuable Web resources.
Based on a discussion on the basic theory and the evaluation indexes of search engines,this article points out the major problems in the development of search engines Meanwhile,it introduces several important directio...Based on a discussion on the basic theory and the evaluation indexes of search engines,this article points out the major problems in the development of search engines Meanwhile,it introduces several important directions for the development of search engines for searching information resources on the Internet The research on searching information resources on the Internet is also展开更多
The traditional information resources are classified according to scientificness and practicality.However,the classification of Internet information resources pays more attention to practicality while paying equal att...The traditional information resources are classified according to scientificness and practicality.However,the classification of Internet information resources pays more attention to practicality while paying equal attention to scientificness.This article,starting from the classification methods of the traditional information resources and Internet information resources,discusses how to optimize the search engines in classified catalogue retrieval and multiple keyword retrieval.展开更多
文摘The brief history of information retrieval technology and the concept of invisible Websites are described.In addition,the article shows how to efficiently retrieve and make use of these valuable Web resources.
文摘Based on a discussion on the basic theory and the evaluation indexes of search engines,this article points out the major problems in the development of search engines Meanwhile,it introduces several important directions for the development of search engines for searching information resources on the Internet The research on searching information resources on the Internet is also
文摘The traditional information resources are classified according to scientificness and practicality.However,the classification of Internet information resources pays more attention to practicality while paying equal attention to scientificness.This article,starting from the classification methods of the traditional information resources and Internet information resources,discusses how to optimize the search engines in classified catalogue retrieval and multiple keyword retrieval.
