一种适合于专题式元搜索引擎的信息检索策略

Information Retrieve Strategy for Subject Meta Search Engines

现有的元搜索引擎技术是基于关键词的信息检索,在查找某一专业知识时,简单的关键词组合不能真实地反映用户的检索意图,导致在检索中大量无关的信息被返回,专题式的元搜索引擎较好地解决了这一问题。本文通过对现有的元搜索引擎技术、领域知识库等研究,提出了一种适合于专题式元搜索引擎的信息检索策略,提高了检索的效率与精度。本文着重介绍了该检索策略的核心思想及其关键技术。

Present meta search engines are key-based information retrieve. A plenty of irrelevant information is returned when user search some professional knowledge because Simple combination of key can not express accurately user's purpose. Subject meta search engines solve the problem. Based on the study of present technologies of meta search engines and domain knowledge base, an information retrieve strategy is put forward which is fit for subject meta search engines. It effectively improves efficiency and precision of information retrieve. The main content of this paper are to introduce the key idea and technologies of the retrieve strategy.