The Research of the Semantic Search Engine Based on the Ontology

In order to solve the problems of the low query precision and the shortness in understanding user´s query intention that occur in traditional search engine, a framework of semantic search engine based on ontology is brought forwards. It need to extract information after the information crawled by the spider, and an algorithm of information extraction based on ontology is proposed. By using semantic reasoning which based on ontology, it helps the search engine to understand user´s query intention. A prototype of search engine is developed by using of lucene, and the search result is better than that of common search engine.