• Competition and cooperation in wireless access misbehavior 

      Koutsopoulos, I. (2011)
      With the proliferation of access points and terminals, wireless access misbehavior emerges as important means of protocol misuse, whereby network entities aim at obtaining higher channel share than the one in legitimate ...
    • A game theoretic framework for data privacy preservation in recommender systems 

      Halkidi, M.; Koutsopoulos, I. (2011)
      We address the fundamental tradeoff between privacy preservation and high-quality recommendation stemming from a third party. Multiple users submit their ratings to a third party about items they have viewed. The third ...
    • Medium access games: The impact of energy constraints 

      Gkatzikis, L.; Paschos, G. S.; Koutsopoulos, I. (2011)
      We consider random medium access schemes for devices that support sleep modes, i.e. turning off electronic compartments for energy saving. Due to hardware limitations, sleep mode transitions cannot occur at the medium ...
    • Modeling institutional change in transition economies 

      Kyriazis, N. C.; Zouboulakis, M. S. (2005)
      A particular aspect of path dependence and change is discussed here. To understand institutional change in transition economies, a game theoretic model that combines economic changes with changes in the social values system ...
    • The Role of Aggregators in Smart Grid Demand Response Markets 

      Gkatzikis, L.; Koutsopoulos, I.; Salonidis, T. (2013)
      The design of efficient Demand Response (DR) mechanisms for the residential sector entails significant challenges, due to the large number of home users and the negligible impact of each of them on the market. In this ...