Research On Medical Information Search Engine Based On Semantic Analysis

With the rapid development of the Internet,medical researchers and ordinary users often retrieve medical information by the search engine.For the increasing expansion of medical information,how to obtain the information users efficiently and accurately become a top priority the search engine is facing.The current search engine technology is mainly based on the keyword match,in improving the recall rate while affecting the quality of the results returned.Especially for more professional medical flied,traditional information search technology cannot satisfy people's individual demands in precision and retrieval efficiency aspects,thus it is particularly important to analyze the semantic information of query requests and medical documents.Because the medical domain ontology has good conceptual expression ability and logical reasoning ability in semantic recognition,which can be a simple keyword-based matching into the semantic level of understanding.Medical ontology can better excavate the semantic information of query and medical text and help medical search engine to achieve more refined semantic results.In this paper,the application of medical ontology in retrieval technology is studied,and a reordering algorithm is proposed for information search in medical field.At the same time,a set of search engine system dedicated to medical retrieval is designed and realized for improving retrieval efficiency.The main research word as follows:First,the hierarchical structure and logical ability of ontology is used to recognize and analyze the semantic information of query requests and medical documents for completing semantic expansion,effectively explore the user real query intention.Second,according to the current information retrieval technology in the relevance and importance of sort,the reordering technology based on semantic analysis is proposed and implemented,which making the search results more in line with user needs.Third,the medical search engine system based on semantic analysis is designed and implemented,which manly includes text analysis module,index module and retrieval module,it improved the recall and precision of medical retrieval.After that,this paper designs and realizes the medical information search engine based on semantic analysis,which can thoroughly mine the user's potential intention and text information content,and improve the precision of the search results,indicating the feasibility and importance of semantic analysis in medical search.