Argumentation in Multi-Agent Systems [electronic resource] : 4th International Workshop, ArgMAS 2007, Honolulu, HI, USA, May 15, 2007, Revised Selected and Invited Papers /

Argumentation and Dialogue -- A General Framework for Argumentation-Based Negotiation -- On the Benefits of Exploiting Hierarchical Goals in Bilateral Automated Negotiation -- Co-argumentation Artifact for Agent Societies -- On the Relevance of Utterances in Formal Inter-agent Dialogues -- A Persuasion Dialog for Gaining Access to Information -- Towards Characterising Argumentation Based Dialogue in the Argument Interchange Format -- Argument-Based Reasoning -- Preferences and Assumption-Based Argumentation for Conflict-Free Normative Agents -- The Hedgehog and the Fox -- An Extended Value-Based Argumentation Framework for Ontology Mapping with Confidence Degrees -- Defeasible Argumentation Support for an Extended BDI Architecture -- Argumentation and Learning -- Arguing and Explaining Classifications -- An Argumentation-Based Framework for Deliberation in Multi-agent Systems -- A Hybrid Argumentation of Symbolic and Neural Net Argumentation (Part I) -- A Hybrid Argumentation of Symbolic and Neural Net Argumentation (Part II).