David Linner

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Service-oriented computing paradigms have considerably enhanced support for dynamic in modern computing environments by providing loosely coupled interactions between components. The key attainment is the ability to perform a late binding of service compositions, i.e., an allocation of actual services to service place holders during run-time. However, this(More)
This paper presents the networking framework as conceived within the European project BIONETS. The case for such a framework comes from the idea of a ldquoDisappearing Networkrdquo paradigm. In the disappearing network, the network ceases to exist as an independent entity and becomes an appendix of the distributed services running on user devices. The(More)
This paper presents the BIONETS opportunistic service evolution platform. The proposed platform allows pervasive services to evolve over time by exploiting opportunistic communications among mobile nodes on the one hand, and evolutionary computation techniques on the other. We present the main components of the platform, describing their functionalities and(More)
Humans usually think of a location not as pair of coordinates but rather in a semantic way as place. In this paper, we are presenting a concept to integrate places in a framework for the development of user- centered community platforms. We follow a grassroots approach for collecting places and introduce an ontology-based place model along with concepts for(More)
Pervasive Gaming, mobile gaming applications interweaved into the real world, is an emerging field for context-aware multimedia applications. Mobile multimedia applications are fostered by the improvement of hardware technology and the emergence of new devices with sufficient networking and processing capabilities. However, these extending possibilities(More)
Context-awareness is a key requirement of human-centric computing systems. Applications may ease user interaction or even anticipate the behavior of the user when utilizing information about the current context. The pervasive provision of context data represents a major challenge in this scope. For that reason we introduce an approach for gathering,(More)
Modern telecommunication networks and classical roles of operators are subject to fundamental change. Many network operators are currently seeking for new sources to generate revenue by exposing network capabilities to 3rd party service providers. At the same time we can observe that applications on the World Wide Web (WWW) are becoming more mature in terms(More)
The view on applications in large-scale open systems shifted to a service-oriented perspective, where each functional feature forming an application is regarded as service. The services which constitute an application can be physically spread over different network nodes and can be even provided by different administrative entities. According to the vision(More)
Social software systems have widely been employed in the process of online community forming in order to support collaborative user participation. Nevertheless, the discovery of people with the same interests or a similar context has still to be accomplished manually by the users themselves. Moreover, the inherent dynamic nature of community forming with(More)