Research on Information Security Audit Base on Semantic Web Ontology and Improve Vector Space Model

Now the network has become the main source of the information where people gain from. However there are various network information, include healthy and helpful information, at the same time; also include the bad and useless information. How to protect the security and quickly and exactly find the user need from this vast information has become the hot research. This article use the improve vector space model to filter bad information and use the semantic web technology to build a computer ontology. Aim at this area to information retrieval, through this ontology to handle users’ input, thus to improve the recall level and the precision rate.