Providing personalized services in context-aware applications by means of generalized rules.

This position paper describes the role ontologies can play in Mobile Context-Aware recommender systems. In a Semantic Web vision of recommender systems, the adoption of ontologies for modeling the domain, the context and the adaptation process can contribute to tailor the right information/service to users and thus facilitate the user-system interaction and the system communication with other agents

Stress-testing has been widely used by businesses, governments, and other organizations to evaluate the strength of their web applications against various attacks. However, the quality of these tests is under constant scrutiny to determine their effectiveness. The present study compares four stress-testing tools, by performing the tests on two major web-based applications. All of the tools used are open source, and run on Win32 platform. The test scenarios are recorded from server log files to make the tests more realistic. Lastly, we discuss how to use stress-testing tools as a measure to avoid Denial of Service attacks on web servers and web applications.

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