Hartwig Knapp

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The paper provides lightweight client support for disruption tolerant end-to-end optimized video streaming. The client prototype consists of two main components: first, the video player interacts with the user for explicit and implicit user-defined QoS attributes. Second, the stream load balancer adaptively handles the pre-fetching of the video stream on(More)
In many professional activities (e.g., medical diagnosis, construction, or sales), the ability to retrieve and store knowledge in a mobile situation is crucial. This need, together with the progress of mobile devices, has led to the emergence of mobile knowledge management. The mobile situation imposes specific constraints on traditional knowledge(More)
Power consumption and heat removal have become first order limiters to "Moore's Law" as regards the growth of processor performance. This limitation has bubbled up from mobile devices to the desktop and now even server processors are investing heavily in technology that manages and reduces power consumption. The result is a fundamental shift in how circuit(More)
In many professional activities, the ability to retrieve and store knowledge in a mobile situation is crucial. This need, together with the progress of mobile devices, has led to the emergence of mobile knowledge management. In this paper, we propose a context-aware knowledge management architecture for mobile environments and apply it to an auditing use(More)
Aircraft engine repair and overhaul (AERO) is an area of professional activity that draws heavily upon an engineer's knowledge. While engine maintenance typically follows a structured process, engine repairs are subject to unstructured processes. Such knowledge intensive professions benefit most from mobile knowledge management applications, but access of(More)