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...

Real time communications and messaging software is a powerful technology that allows people and groups to talk and collaborate together using the Internet. This poster examines its practical use in a museum setting for distance learning and enhancing an institution’s Web presence. It's 10 am on Wednesday, and Christopher Browning, well-known Holocaust scholar, is live and on air. In the small r...

MathGirls is a pedagogical-agent-based environment designed for high-school girls learning introductory algebra. Since females are in general more interested in interactive computing and more positive about the social presence of pedagogical agents, the environment provides a girl-friendly social learning environment, where pedagogical agents encourage the girls to build constructive views of l...

This thesis explores the concept of social presence in team-based digital games, aiming to enlighten the core elements of social presence in this specific multi-user experience. The thesis achieves this exploration in three main ways, by using a novel approach to establish the core elements of social presence in teambased digital games, by developing a new measure for social presence specifical...

An important factor for success in project-based learning (PBL) is that the involved project groups establish an atmosphere of social interaction in their working environment. In PBL-scenarios situated in distributed environments, most of a group’s work-processes are mediated through the use of production-focused tools that are unconcerned with the important informal and social aspects of a pro...

Machine-to-Machine (M2M) communication refers to communication among machines without or with only limited human intervention. The paper deals with context-awareness in M2M communication and proposes rich presence information as a concept to address context information in a multi-agent system supporting networking of machines. Rich Presence Information Data (RPID) extensions suitable for M2M ar...