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Auflistung nach Autor:in "Frank, Matthias"

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  • Textdokument
    3rd International Workshop on Big Data, Smart Data and Semantic Technologies
    (INFORMATIK 2017, 2017) Frank, Matthias; Kleiner, Natalja; Zander, Stefan; Setzer, Thomas; Sure-Vetter, York; Studer, Rudi
  • Konferenzbeitrag
    Performance of symmetric neighbor discovery in Bluetooth ad hoc networks
    (Informatik 2004 – Informatik verbindet – Band 1, Beiträge der 34. Jahrestagung der Gesellschaft für Informatik e.V. (GI), 2004) Bohman, Diego; Frank, Matthias; Martini, Peter; Scholz, Christoph
    Ad hoc networking with Bluetooth requires an efficient way of discovering neighbor devices. Based on real-world measurements and simulations we are deriving optimal parameters for symmetric ad hoc neighbor discovery using standard Bluetooth procedures.
  • Konferenzbeitrag
    Pushing the CIDOC-conceptual reference model towards LOD by open annotations
    (Modellierung 2016, 2016) Frank, Matthias; Zander, Stefan
    By using a novel modelling approach, we demonstrate how the Conceptual Reference Model (CRM) of ICOM's International Committee for Documentation (CIDOC) can be complemented using the Open Annotation Data Model (OADM) in order to create semantically rich annotations. We show that domain knowledge can be combined with meaningful and linked data exposed in the so-called Web of Data (aka semantic Web) by having the necessary provenance information for annotations. The combination of domain specific knowledge with existing Linked Open Data (LOD) requires well-designed modelling decisions for linking semantic data sets in a comprehensible way. We show that our combined approach is able to address the requirements of digital heritage in more sufficient ways than each model separately. We combine the advantages of a proven domain ontology with the flexibility and semantic richness of the OADM. In order to evaluate our approach, we show with a concrete example how a museum artifact is modeled in CIDOC-CRM and how these data can be interlinked with existing LOD in meaningful and machine-processable ways by encoding provenance information for new annotations using the OADM.
  • Konferenzbeitrag
    Receiver-based path capacity estimation for TCP
    (Kommunikation in Verteilten Systemen (KiVS), 2005) Barz, Christoph; Frank, Matthias; Martini, Peter; Pilz, Markus
    This paper presents a new TCP-based packet pair measurement approach for network path capacity estimation. It addresses some drawbacks other approaches still bear. In contrast to these, our approach uses an unmodified TCP sender and utilizes techniques to identify probing packets that were less influenced by cross traffic. These techniques are applied at the receiver side only. The concept is verified by simulation and an outline of the applicability for real-life measurements in the Internet is presented.