Weighted voting games are a popular model of collaboration in multiagent systems. In such games, each agent has a weight (intuitively corresponding to resources he can contribute), and a coalition of agents wins if its total weight meets or exceeds a given threshold. Even though coalitional stability in such games is important, existing research has nonetheless only considered the stability of ...

A central problem in multiagent systems concerns the fair assignment of objects to agents. We initiate the study of randomized assignment rules with optional participation and investigate whether agents always benefit from participating in the assignment mechanism. Our results are largely positive, irrespective of the strategyproofness of the considered rules. In particular, random serial dicta...

Organizational structures often employ abstraction to specify broadly-applicable behavioral roles and guidelines to agents, where abstraction streamlines the design process and leaves agents room for tailoring actions to the evolving situation. Too much abstraction, however, can provide too little guidance towards fruitful joint activities or burden agents with solving complex coordination prob...

Caring for a depressed person may have substantial impact on the health and well-being of the caregiver. In this paper, an ambient agent model is proposed that supports caregivers, to prevent or decrease the burden in them and promote their well-being. The agent integrates a domain model of the functioning of the caregiver and the care recipient and their interaction, and exploits model-based r...

In previous papers we introduced HeCaSe2, a multi-agent system that helps doctors to follow the automatic application of clinical guidelines to patients. In this paper we show how aggregation operators, based on fuzzy logic, may be integrated in this system in order to personalize some of its tasks. These operators take into account the patient preferences when several medical services propose ...

In this paper we investigate multiagent systems whose agent interaction is based on social commitments that evolve over time, in presence of (possibly incomplete) data. In particular, we are interested in modeling and verifying how data maintained by the agents impact on the dynamics of such systems, and on the evolution of their commitments. This requires to lift the commitment-related conditi...

To tackle the complexity and heterogeneity of the networks that integrate Mechatronic SMEs, this paper describes a modelling and simulation solution based on multiagent system and ArchMDE (Architecture Model Drive Engineering) methodology for supply chain agentification. This research work outlines two main results: conceptualisation and modelling. The first one deals with the identification an...

The purpose of this poster is to introduce a dialectical theory for plan synthesis based on a multiagent approach. This approach is a promising way to devise systems able to take into account partial knowledge and heterogeneous skills of agents. We propose to consider the planning problem as a defeasible reasoning where agents exchange proposals and counter-proposals and are able to conjecture ...

In order to address the topic of creativity in science, this paper evidences the two main features that characterize the current scientific practice: the increasingly important role of information machines and of collective sociality. Given the nature of the scientific enterprise, we propose to adopt a powerful and flexible multiagent system, called scientific social agency, both to support cre...