Audit System Of Enterprise Site Service Based On Content Filtering Technology

Information technology which is developing rapidly profoundly change people's lives,production and management, accelerate the development of national modernization and our society. However, because of the openness of network information, there is a huge information security risk in the information process.To carry out purpose of the content security, people should check the legitimacy and normative of the information to ensure the healthy and rapid development of network information, also to prevent the extensive development of undesirable information network.The current audit systems of network information are mostly based on a separate manual audit, relying on subjective judgments of auditors to judge the legitimacy and normative of the network information.In view of shortcomings such as the heavy workload of auditors, the long cycle of audit, and strong subjective, the author proposed a semi-automatic audit program,which combined auto-audit based on the technology of content filtering with manual-audit based on the process,and applied in the platform of enterprise site service.The paper, firstly, gives an analysis of background for enterprise site service and status quo of web content security, illustrates the necessary for auditing system.Based on this,the overall architecture and functions and working principle of all function modules are carried out a detailed description.Secondly, the paper gives the system functions and system design of enterprise self portal audit subsystem.As follows, the related technologies of content filtering are researched including list filtering, keyword filtering and intelligence analysis filtering, focusing on the vector space model and Bayesian Decision Model Filtering Algorithm. Based on the above,the paper gives a detailed exposition about filtering principles and working principle of auto-audit based on the content filtering technology. Also a analysis about application of self portal audit subsystem based on the content filtering, combining with the practical application of enterprise self portal.Finally, the author analyzed the application results of audit system in the enterprise site service platform, verified the utility and superiority of the program system,and pointed out the deficiencies of the program.