1st Joint Working Group Workshops

Start Date: 2009-05-16

End Date: 2009-05-16

Location: Budapest

Country: Hungary


Location: Europa Conference Centre, Budapest, HU

Participants: 55 (see attached programme)

WG1 “Semantics” meeting

There were several presentations: Introduction to Action and Semantics, presentations from Alberto Fernandez, Alessandra Mileo, Antoine Zimmermann, Axel Polleres.

Open discussion on WG key topics: Semantic Alignment with Rules & Ontologies, Semantic Search and Querying, Semantics and Policies/Trust

The meeting was continued in a joint session with WG5 “Trust”

WG2 “Norms” meeting

The WG2 meeting was organized in two phases. First phase (21 participants): after a short introduction by Castelfranchi, the young scholars contributing to AAMAS09 were requested to give a short summary of their contributions. The presented issues were discussed by WG2 members. The discussion has been very productive, identifying fundamental issues to be clarified and modelled (is a norm just a constraint, a restriction of our behaviour? or is the introduction of new goals? is any constraint a norm? what is compliance? are norms conditional and consensual or based on some issuing authority?); but also discussing about possible crucial applications requiring norm representation, like the monitoring of medical protocols in hospitals etc.. The need for flexibility in norm instantiation and functional violation was stressed.

The second part of the meeting was dedicated to a joint meeting with WG3 “Organization”, since people were interested in participating in both WG meetings.

A very rich and interdisciplinary discussion, focused on crucial issues like the relationships between organization, norm, agreement, and the nature of roles. Important discussions: do we need a normative foundation of agreements and of organizations?; are organizations based on agreements and established by agreement? different kinds/levels of agreements and their relation with contracts.

WG3 “Organisations” meeting

Short presentation given by Marco Colombetti on WGs in general and on WG3 in particular. Explanation of “STSM” and “ESR.”

Introduction of each participant to the audience: own research group and current projects.

Discussion of WG3 priorities. Involvement of industry and of larger communities of computer scientists (software engineers, business process modellers, etc.) are considered crucial. To this purpose it will be important to explore relevant use cases and to design tools that suitably hide the most complex aspects of the underlying conceptual models. Interdisciplinarity outside computer science is not viewed as a real priority. Industry days will be important, but should be organised together with the other WGs.

Actions to be taken. Exploit the repository that will be available on the next version of the action’s website to publish papers for discussion, short position papers, tools, and demos. Exploit social software tools (blogs, wikis, …) to develop a continual discussion among members, oriented to specific questions. Try to produce common publications involving different research groups.

WG4 “Argumentation and Negotiation” meeting

Aims of WG4 were summarised.

Carlos Chesñevar presented a recent work on how to « aggregate » different arguments in order to increase the acceptability of a statement. To investigate the role of accrual in negotiation.

Amgoud presented a preliminary work on the role of argumentation in a negotiation dialogue. How argumentation is related to the output of a negotiation/to the preferences of agents. When argumentation can improve the result of a negotiation. When argumentation is useless in a negotiation.

Bentahar presented a formal model for persuasion dialogue. Arguments are exchanged between agents. A protocol supporting the exchange is proposed. Some strategies for the choice of the exact move to play are given.

Current state of the art on ABN: The impact of exchanging arguments in a negotiation is not completely defined. It is not clear how to manage arguments received from other agents (using a model of trust). The notion of strategy is not studied.

Future actions: A workshop in which researchers working on game theory, heuristic-based negotiation, ABN and group decision making will be invited. How the three approaches can be combined. How to take advantage of results in game theory for modelling strategies in ABN.

WG5 “Trust” meeting

Introduction to the Trust WG by Carles Sierra, WG chair. Presentations on 1) Maintenance-based Trust for Multi-Agent Systems Babak Khosravifar, Concordia University, Canada; 2) Operators for Propagating Trust and their Evaluation in Social Networks Chung-Wei Hang,North Carolina State University, US; 3) Pragmatic-Strategic Reputation-Based Decisions in BDI agents Isaac Piol, IIIA-CSIC, Spain; 4) Smart Cheaters Do Prosper: Defeating Trust and Reputation Systems Reid Kerr University of Waterloo, Canada.

Discussion on the presentations.

The second part of the WG meeting was continued in a joint session with WG1 “Semantics”.

More information

Plenary Sessions

Summary of the Agreement Technologies Action by Sascha Ossowski, Action Chair.

Working Groups chairs presented the results of the morning sessions.

Open Discussion on WG interrelations and synergies.

COST AT Community Meeting: Presentation of Action activities planned for the next project period. Open discussion on expectations of early-stage and senior researchers regarding the Action.