现代电子科技信息查询技术新进展及其发展趋势

随着网络的快速发展,导致了电子信息源的迅速增长,电子科技信息查询技术也有了新的进展.文中重点论述了扩展查询和查询词重加权技术,包括:①基于用户反馈信息的查询技术;②局部文献分析查询技术;③全局文献分析查询技术.最后指出了未来查询技术的自然语言化、智能化、敏捷化和知识化发展趋势.

Development and Trends of Query Operations Technology on Electrical Technology Information

The rapid development of networks leads to the rapid progress of electrical technology information. This paper puts emphasis on query expansion and term reweighting, which are grouped into three categories: (a) approaches based on feedback in formation from the user; (b) approaches based on information derived from the set of documents initially based on local information derived from the document collection. (c) approaches based on information derived from the set of documents initially based on global information derived from the document collection. This paper concludes with the trend of information query operations of electrical technology information.