Digital Content and Its Security

The digital content industry is becoming a new impetus for the development of the information industry as the infrastructure construction,including the optical fiber backbone transmission network and the wireless mobile access network,are being completed.Industrial analysis and technical research of the digital content become more and more important in this situation.Digital content security technology is one of the three supporting technologies in the digital content industry.The key points to guarantee digital content security include the solutions for the following problems:sale of pirated digital content,damage and pollution of illegal and harmful content to the social environment,and the means for consumers’ security and reasonable payment.These issues involve a lot of challenging scientific and technical problems such as highly efficient multimedia encryption and hiding algorithms,multimedia content recognition and filtering algorithms on network,and heterogeneous network oriented micropayment protocols.

Design and Implementation of Weibo Sentiment Analysis Based on LDA and Dependency Parsing

Information content security is a branch of cyberspace security. How to effectively manage and use Weibo comment information has become a research focus in the field of information content security. Three main tasks involved are emotion sentence identification and classification,emotion tendency classification,and emotion expression extraction. Combining with the latent Dirichlet allocation(LDA) model,a Gibbs sampling implementation for inference of our algorithm is presented,and can be used to categorize emotion tendency automatically with the computer. In accordance with the lower ratio of recall for emotion expression extraction in Weibo,use dependency parsing,divided into two categories with subject and object,summarized six kinds of dependency models from evaluating objects and emotion words,and proposed that a merge algorithm for evaluating objects can be accurately evaluated by participating in a public bakeoff and in the shared tasks among the best methods in the sub-task of emotion expression extraction,indicating the value of our method as not only innovative but practical.

Authentication and Access Control in RFID Based Logistics-customs Clearance Service Platform

The content security requirements of a radio frequency identification （RFID） based logistics-customs clearance service platform （LCCSP） are analysed in this paper. Then, both the unified identity authentication and the access control modules are designed according to those analyses. Finally, the unified identity authentication and the access control on the business level are implemented separately. In the unified identity authentication module, based on an improved Kerberos-based authentication approach, a new control transfer method is proposed to solve the sharing problem of tickets among different servers of different departments. In the access control module, the functions of access controls are divided into different granularities to make the access control management more flexible. Moreover, the access control module has significant reference value for user management in similar systems.

Improving the precision of the keyword-matching pornographic text filtering method using a hybrid model

With the flooding of pornographic information on the Internet, how to keep people away from that offensive information is becoming one of the most important research areas in network information security. Some applications which can block or filter such information are used. Approaches in those systems can be roughly classified into two kinds: metadata based and content based. With the development of distributed technologies, content based filtering technologies will play a more and more important role in filtering systems. Keyword matching is a content based method used widely in harmful text filtering. Experiments to evaluate the recall and precision of the method showed that the precision of the method is not satisfactory, though the recall of the method is rather high. According to the results, a new pornographic text filtering model based on reconfirming is put forward. Experiments showed that the model is practical, has less loss of recall than the single keyword matching method, and has higher precision.

The Importance of Health Records

Health records have played an increasingly important role throughout history as an important legal document for the exercise of individuals’ rights. However, domestic legislation fails to define health records as a legally important collection of health data and documents. Recording facts and storing legally important documents are therefore the tasks of the operator. Using the prescriptive method we will determine which laws are governing the management of medical records, their safety and accessibility. Based on the descriptive method, we will describe the process of handling health records by the provider of health treatment, focusing on exposed regulatory gaps in the area of the protection of the rights of an individual. Through the analysis of the laws governing the management of health records, even after death and operator terminating the service, we will carry out inductive reasoning and provide conclusions regarding the attitude towards health records. Considering different results we can conclude that health information, especially documents relevant to the protection of individual’s rights, is not transparent. Above all, the documents in the collection are not recorded properly, thus allowing for their removal. Even the transfer of health records by the provider of health treatment is not defined, which could result in the disposal of the entire health documentation.

我国省级普惠式健康险发展现状

目的 了解我国省级普惠式健康险(普惠险)发展现状,厘清基本医疗保险、普惠险和百万医疗险的区别,分析普惠险当前存在的问题并对其未来发展提出可行性建议。方法 在31个省(自治区、直辖市)人民政府网、医疗保障局、卫生健康委员会、民政厅、人力资源和社会保障厅等政府官网以“普惠险”“惠民保”“补充医疗保险”为关键词检索相关政策文件和信息,同时配合各地的“本地保微信公众号”及各普惠险投保平台,搜集省级普惠险的参保信息以及具体的保障内容,时间截至2021年10月15日。结果 截至2021年10月15日,31个省级行政区中有19个地区共推出26款省级普惠险,保障责任集中于医疗保险目录内住院费用和特殊药品费用。普惠险的区域性、普惠性品以及特殊药品的保障是其与百万医疗险的主要区别。当前普惠险发展的问题体现在“两高一低一同”,即免赔额高而赔付限额虚高、可持续性低以及产品同质化严重。结论 建议医疗保障部门对普惠险进行背书和指导,合理设置省级普惠险的赔付标准和保障内容,提高普惠险产品的可持续性和抗风险能力;商业保险公司应加速迭代产品,适应市场需求,脱离同质化。