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As information technology improves, the Internet is involved in every area in our daily life. When the mobile devices and cloud computing technology start to play important parts of our life, they have become more susceptible to attacks. In recent years, phishing and malicious websites have increasingly become serious problems in the field of network security. Attackers use many approaches to implant...
With the heterogeneous proliferation of mobile devices, the delivery of learning materials on such devices becomes subject to more and more requirements. Personalized learning content adaptation, therefore, becomes increasingly important to meet the diverse needs imposed by devices, users, usage contexts, and infrastructure. Historical server logs offer a wealth of information on hardware capabilities,...
In physics heat energy divided by temperature is entropy which means the conversion degree from heat to work. While in science and technology entropy generally refers to possible degree of certain matter system status, in social science entropy indicates the degree of certain society state, in information theory entropy expresses uncertain degree. In a word, the application of "entropy"...
When solving multivariate sample data, principal component analysis (PCA) can simplify the source, reduce the dimension of redundancies, and make the new variable uncorrelated, so it is widely utilized in multivariate statistical analysis. These years, however, some people apply the PCA to determine the weight of evaluation index system, even include the method in the textbook. This paper will clarify...
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