Blar i forfatter "Stenhaug, Magnus"

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    • Eatnu: a storage system for evaluating and persisting sensor data 

      Stenhaug, Magnus (Master thesis; Mastergradsoppgave, 2014-06-01)
      The amount of information generated exceeeds the current available storage. Big Data, the Internet of Things and the increasing popularity of self-tracking gadgets call for new storage solutions to manage and analyze the data. To handle the constant flow of information, we have implemented Eatnu. Eatnu is a storage system designed to handle large data streams, where programmers can specify what ...

    • Enforcing Privacy Policies with Meta-Code 

      Johansen, Håvard; Birrell, Eleanor; Van Renesse, Robbert; Schneider, Fred B.; Stenhaug, Magnus; Johansen, Dag (Konferansebidrag; Conference object, 2015)
      This paper proposes a mechanism for expressing and enforcing security policies for shared data. Security policies are expressed as stateful meta-code operations; meta-code can express a broad class of policies, including access-based policies, use-based policies, obligations, and sticky policies with declassification. The meta-code is interposed in the filesystem access path to ensure policy ...

    • Muithu: Smaller Footprint, Potentially Larger Imprint 

      Johansen, Dag; Stenhaug, Magnus; Hansen, Roger Bruun Asp; Christensen, Agnar; Høgmo, Per-Mathias (Research report; Forskningsrapport, 2012)
      We describe our experience with the Muithu sports notational analysis system, a novel digital information system in the popular sports domain. The system integrates real-time coach notations with related video sequences, and is configured with small, off-the shelf and cheap components. Muithu requires little or no human post-processing, which is in strong contrast to state-of-the art resource-intensive ...