基于本体的元搜索引擎的设计与实现

Design and realization of ontology based on meta search engine

与英文元搜索引擎相比,中文元搜索引擎还存在一定的差距,现有的中文元搜索引擎在实现关键词的扩展方面有待提高。通过对本体及元搜索引擎技术的研究,提出并实现了基于本体的元搜索引擎系统,介绍了系统的工作原理,通过对现有的元搜索引擎排序算法的分析,对摘要排序算法进行了改进。最终对系统进行测试并对其结果进行分析。

Compared with English meta search engine, Chinese meta search engine has certain defect. The existing Chinese meta search engines have not realized the key word expansion. After researching the technology of ontology and meta search engine, the ontology based meta search engine system is put forward and the realization of it is expounded, the work principle of the system is described. At the same time, the research on the result sequence algorithm ofmeta search engine is made and an improved abstract sequence algorithm is provided. In the end test of the system is made and its result is analyzed. The system realizes the key word synonym and English expansion inquiry, enhances the recall and the precision.