【摘要】 随着信息技术的迅猛发展,搜索引擎技术的应用也变得越来越广泛。文章提出了一种构建专业搜索引擎的总体构架,详细介绍了框架中专业信息采集和处理子系统的设计和实现方法、网站相关度计算方法和层进式最短路径中文分词算法,通过建立相关度知识库和化工专业词库,进一步提高了系统的专业性和检索效率。更多还原

【Abstract】 As the development of information technology at an explosive rate, the search engine was applied more widely. This paper first presents architecture of specific search engine, then discusses design and implementation methods of sub- systems of collecting and processing, computation method of degrees of web sites, and the Layer-entering mode of the shortest paths of Chinese words segmenting in detail. At last the system achieves more professional and gets high retrieval efficiency by building professional vocabulary of chemical engineering and knowledge database.更多还原