Methods and Techniques of Searching Terms Determination in Computer Information Retrieval

How to choose suitable search terms in computer information retrieval define the success and failure of computer information retrieval. This paper explores how to define search terms. First, segment, delete, merger and cluster the explicit subject of retrieval project, and obtain search terms with search meaning, then set and choose synonyms, upper class terms, subornative class terms contained in subject contents. Finally, discusses how to use different kinds of synonyms in computer information retrieval.