【摘要】 Web信息检索技术的出现帮助人们从海量的数据中搜索到符合用户要求的信息,但由于用户查询条件的模糊性及自然语言的歧义性等原因,有时导致查询结果不符合用户要求。本文首先对Web信息检索技术进行了回顾,并依据现在流行的信息检索系统模型着重讨论了融合于其中的相关反馈技术,以此改进Web检索,提高查询精度。更多还原

【Abstract】 It becomes possible that users can acquire satisfied information from large amounts of data by information retrieval.Because of the difficulty of query formulation and the inherent word ambiguity in natural language,the result might not correspond with the user’s requirement.The paper begin with an review about the technology of information retrieval on the web.Then make an emphasis on the relevance feedback that combined in the prevalent IR models to improve IR and raise the precision.更多还原