中文摘要：

考虑到社区中非结构化信息的广泛性和语义分析的优点，设计了基于语义的社区房屋搜索引擎的模型。其一，该模型能从社区中的无结构化信息得到结构化信息，使得有用信息来源更加广泛；其二，该模型采用基于语义的检索，可减小搜索范围，提高检索精度。并重点介绍文本分析索引模块，其中分析器用来分析文档，索引器用来建立语义索引和关键字。

英文摘要：

Considered the widely distribution of unstructured information and the advantages of semantic analysis, this paper designed the model of the search engine about community house searching based on semantic analysis. Firstly, the model extracts structured information from a lot of the unstructured information, which can widen the source of useful information. Secondly, the search engine can find information rely on the semantic of the search content, which can enhance the accuracy of search engine.