this paper deals with leader-following and leaderless consensus problems of high-order multi-input/multi-output (mimo) multi-agent systems with unknown nonlinear dynamics in the presence of uncertain external disturbances. the agents may have different dynamics and communicate together under a directed graph. a distributed adaptive method is designed for both cases. the structures of the contro...

In contemporary society not adhering to norms is something which is unwanted. Currently approaches to prevent this from happening are often taken whereby the deviation of a norm is punished and possible repair actions are performed. However, this is a reactive approach and can only happen once the norm has already been violated. This paper presents a proactive approach which allows intervention...

In this paper we study how to characterize ethical agents in normative multi-agent systems. We adopt a proposition control game together with input/output logic. Norms create the normative status of strategies. Agents’ preference in proposition control games are changed by the normative status of strategies. We distinguish four ethical types of agents: moral, amoral, negatively impartial and po...

We study the performance of collaborative spatial/visual tasks under different input configurations. The configurations used are a traditional mouse-monitor, a shared-monitor with multiple-mice, and a multi-user input device (DiamondTouch). Our experiments indicate that there is a significant variation in performance for the different configurations with pairs of users, while there is no such v...