Christoph Hanser

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The authoring of tags – unlike the authoring of traditional metadata – is highly popular among users. This harbours unprecedented opportunities for organizing content. However, tags are still poorly understood. What do they “mean”, in what senses are they similar to or different from metadata? Different tags support different communities, but how exactly do(More)
Introduction The purpose of this case study is to show the initial considerations regarding the introduction of Web log analysis to the testberichte.de Web site [InTB]. In our study we focus on business questions: Can Web log analysis provide information relevant to business decisions? How much resources should be spent on Web log analysis? Can generic(More)
The move towards integrated international Digital Libraries offers the opportunity of creating comprehensive data on citation networks. These data are not only invaluable pointers to related research, but also the basis for a evaluations such as impact factors, and the foundation of smart search engines. However, creating correct citationnetwork data(More)
In mobile telephony, there are several vulnerabilities like interception, fabrication, and denial of services. Security aspects have been improved in every new generation of mobile system. This seminar paper explains security in each generation and discusses how security is ensured in mobile telephony. This paper was written for the Security Computer(More)
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