• Article  

      Abductive logic programming 

      Kakas, Antonis C.; Kowalski, R. A.; Toni, F. (1992)
      This paper is a survey and critical overview of recent work on the extension of logic programming to perform abductive reasoning (abductive logic programming). We outline the general framework of abduction and its applications ...
    • Conference Object  

      Argumentation for propositional logic and nonmonotonic reasoning 

      Kakas, Antonis C.; Toni, F.; Mancarella, P. (CEUR-WS, 2014)
      Argumentation has played a significant role in understanding and unifying under a common framework different forms of defeasible reasoning in AI. Argumentation is also close to the original inception of logic as a framework ...
    • Article  

      An argumentation framework for reasoning about actions and change 

      Kakas, Antonis C.; Miller, R.; Toni, F. (1999)
      We show how a class of domains written in the Language E, a high level language for reasoning about actions, narratives and change, can be translated into the argumentation framework of Logic Programming without Negation ...
    • Article  

      Argumentation Logic 

      Kakas, Antonis C.; Toni, F.; Mancarella, P. (2014)
      We propose a novel logic-based argumentation framework, called Argumentation Logic (AL), built upon a restriction of classical Propositional Logic (PL) as its underlying logic. This allows us to control the application of ...
    • Conference Object  

      Argumentation: Reconciling human and automated reasoning 

      Kakas, Antonis C.; Michael, Loizos; Toni, F. (CEUR-WS, 2016)
      We study how using argumentation as an alternative foundation for logic gives a framework in which we can reconcile human and automated reasoning. We analyse this reconciliation between human and automated reasoning at ...
    • Article  

      Computational logic foundations of KGP agents 

      Kakas, Antonis C.; Mancarella, P.; Sadri, F.; Stathis, Kostas; Toni, F. (2008)
      This paper presents the computational logic foundations of a model of agency called the KGP (Knowledge, Goals and Plan) model. This model allows the specification of heterogeneous agents that can interact with each other, ...
    • Article  

      Computing argumentation in logic programming 

      Kakas, Antonis C.; Toni, F. (1999)
      In recent years, argumentation has been shown to be an appropriate framework in which logic programming with negation as failure as well as other logics for non-monotonic reasoning can be encompassed. Many of the existing ...
    • Article  

      Computing the acceptability semantics 

      Toni, F.; Kakas, Antonis C. (1995)
      We present a proof theory and a proof procedure for nonmonotonic reasoning based on the acceptability semantics for logic programming, formulated in an argumentation framework. These proof theory and procedure are defined ...
    • Article  

      Declarative agent control 

      Kakas, Antonis C.; Mancarella, P.; Sadri, F.; Stathis, Kostas; Toni, F. (2005)
      In this work, we extend the architecture of agents (and robots) based upon fixed, one-size-fits-all cycles of operation, by providing a framework of declarative specification of agent control. Control is given in terms of ...
    • Article  

      The KGP model of agency 

      Kakas, Antonis C.; Mancarella, P.; Sadri, F.; Stathis, Kostas; Toni, F. (2004)
      This paper presents a new model of agency, called the KGP (Knowledge, Goals and Plan) model. This draws from the classic BDI model and proposes a hierarchical agent architecture with a highly modular structure that synthesises ...
    • Conference Object  

      The KGP model of agency for Global Computing: Computational model and prototype implementation 

      Bracciali, A.; Demetriou, Neophytos; Endriss, U.; Kakas, Antonis C.; Lu, W.; Mancarella, P.; Sadri, F.; Stathis, Kostas; Terreni, G.; Toni, F. (2005)
      We present the computational counterpart of the KGP (Knowledge, Goals, Plan) declarative model of agency for Global Computing. In this context, a computational entity is seen as an agent developed using Computational Logic ...
    • Article  

      On Argumentation Logic and Propositional Logic 

      Kakas, Antonis C.; Mancarella, P.; Toni, F. (2017)
      This paper studies the relationship between Argumentation Logic (AL), a recently defined logic based on the study of argumentation in AI, and classical Propositional Logic (PL). In particular, it shows that AL and PL are ...
    • Article  

      On the computational complexity of assumption-based argumentation for default reasoning 

      Dimopoulos, Yannis; Nebel, B.; Toni, F. (2002)
      Bondarenko et al. have recently proposed an abstract framework for default reasoning. Besides capturing most existing formalisms and proving that their standard semantics all coincide, the framework extends these formalisms ...
    • Conference Object  

      Preferred arguments are harder to compute than stable extensions 

      Dimopoulos, Yannis; Nebel, B.; Toni, F. (1999)
      Based on an abstract framework for nonmonotonic reasoning, Bondarenko et at. have extended the logic programming semantics of admissible and preferred arguments to other nonmonotonic formalisms such as circumscription, ...
    • Article  

      ε-RES: Reasoning about actions, events and observations 

      Kakas, Antonis C.; Miller, R.; Toni, F. (2001)
      The language ε for reasoning about actions and change can be translated into an argumentation framework. In this paper, we extend this translation of the basic language and showhowit can, together with methods from abduction, ...