We present a “black-box” approach to estimating query cardinality that has no knowledge of query execution plans and data distribution, yet provides accurate estimates. It doe...
In Ubiquitous Computing Environment (UCE), service provider wants to provide its service to only legitimate users. Some users who belong to same service provider do not want to rev...
This paper addresses a novel approach that integrates two different types of information resources: the World Wide Web and libraries. This approach is based on a hypothesis: advan...
A mobile ad hoc network is a self-organizing network that relies on the cooperation of participating nodes in order to function properly. In this network, mobile users arrive withi...
Abstract. Mobile devices are increasingly aware of their respective locations and vicinity and tend to communicate rather loosely with each other; therefore asynchronous communicat...
Christian P. Kunze, Sonja Zaplata, Winfried Lamers...