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Auflistung nach Autor:in "Steffens, Timo"

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  • Konferenzbeitrag
    A flexible high-performance service-oriented production system for Triple Play telecommunication products
    (INFORMATIK 2008. Beherrschbare Systeme – dank Informatik. Band 1, 2008) Steffens, Timo; Mertens, Robert; Andres, Stefan
    This paper introduces concepts for a service-oriented IT-landscape supporting flexible and high-performance provisioning of telecommunication products. On the one hand these concepts are designed to be generic in order to facilitate a short time-to-market for future products. On the other hand the concepts guarantee a scalable and high-performance operation of the system. The concepts have been developed in cooperation with and successfully employed in a major German telecommunications company.
  • Konferenzbeitrag
    Path Searching with Transit Nodes in Fast Changing Telecommunications Networks
    (INFORMATIK 2008. Beherrschbare Systeme – dank Informatik. Band 1, 2008) Mertens, Robert; Stachowiak, Joerg; Steffens, Timo
    Transit nodes are a concept that has proven to speed up pathfinding in roadnetworks considerably. The main idea of transit nodes is to precompute paths for selected routes and use these as shortcuts during the search. While this method can be employed for road networks that remain static over a period of time, it can not be directly applied to complex fast changing networks such as those used for telecommunication since precomputed shortcuts can become invalid at any time. In this paper, an approach is presented that is based on transit nodes but extends the concept to accommodate for the special requirements of fast changing networks.