• Assumption-based reasoning in dynamic normative agent systems 

      Giannikis, G. K.; Daskalopulu, A. (2010)
      In this paper we address dynamic assumption-based reasoning in open agent systems, where, unavoidably, agents have incomplete knowledge about their environment and about other agents. The interactions among agents in such ...
    • Defeasible reasoning with e-contracts 

      Giannikis, G. K.; Daskalopulu, A. (2007)
      We propose a mapping from a contract representation in Event Calculus to Default Logic. The resulting representation allows for defeasible reasoning with e-contracts, which is useful in order to determine the normative ...
    • How can agents know what to assume when? 

      Giannikis, G. K.; Daskalopulu, A. (2008)
      The work in this paper is motivated from the need for assumption-based reasoning in normative systems, where, realistically, agents will have incomplete knowledge about their environment, and about other agents. The question ...
    • Normative conflicts in electronic contracts 

      Giannikis, G. K.; Daskalopulu, A. (2011)
      We are concerned with normative conflicts that arise for agents engaging in electronic contracting within an electronic marketplace. We identify a set of primitive conflict patterns, examine other analyses of conflicts ...
    • Normative conflicts:Patterns,detection and resolution 

      Giannikis, G. K.; Daskalopulu, A. (2009)
      The analysis, representation and management of normative conflicts have been the focus of much research in recent years in commercial and business applications. In this paper we are concerned with normative conflicts that ...
    • The representation of e-contracts as default theories 

      Giannikis, G. K.; Daskalopulu, A. (2007)
      It is widely acknowledged that a temporal representation of e-contracts is essential in order to support e-contract execution and performance monitoring. One possibility that has been explored by many researchers is to ...
    • The role of assumption identification in autonomous agent reasoning 

      Giannikis, G. K.; Daskalopulu, A. (2009)
      The concept of autonomy is central to the notion of agenthood and has been addressed by many researchers in the multi-agent systems community. We argue that the degree to which an agent's reasoning is autonomous is affected ...