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Showing papers in "International Transactions on Systems Science and Applications in 2008"


Journal Article
TL;DR: This paper describes a simulation system that is developing for the purposes of training customs officers to identify risk situations and brings together research from virtual environments; narrative intelligence; language technology and knowledge acquisition to develop a training system.
Abstract: Simulations offer a safe, repeatable and controlled way of providing training to humans and for evaluating the value of the training. This paper describes a simulation system that we are developing for the purposes of training customs officers to identify risk situations. The work brings together research from virtual environments; narrative intelligence; language technology and knowledge acquisition to develop a training system we are using to evaluate the effect of factors on our architecture and implementation such as visualization, interaction, and immersion on engagement and learning.

11 citations


Journal Article
TL;DR: A three-level model for behavioural descriptions is presented, and how UML Activity Diagrams and the Cashew workflow model fit into this, building on existing work on the use of Abstract State Machines to define behaviour in WSMO.
Abstract: There are two types of behavioural models in the WSMO semantic description of services: an orchestration and a choreography, together called the interface. While an orchestration defines a service's behaviour as a composition of existing parts, a choreography is intended to document the conversation of messages exchanged with its client. This paper presents a three-level model for behavioural descriptions, and how UML Activity Diagrams and the Cashew workflow model fit into this, building on existing work on the use of Abstract State Machines to define behaviour in WSMO.

9 citations


Journal Article
TL;DR: MathGirls as mentioned in this paper is a learning environment for high school girls to learn algebra using pedagogical agents, which is based on social cognitive theories of learning and is designed for online learning.
Abstract: This paper introduces the learning environment MathGirls for high school girls learning fundamentals of algebra. Grounded in social cognitive theories of learning, MathGirls utilizes pedagogical agents to create a girl-friendly virtual learning environment. The design constituents of pedagogical agents are reviewed. These constituents are likely to influence building agent/learner relations. The agent design and system architecture of the MathGirls environment are developed to integrate some of the design constituents. Empirical findings from MathGirls deployment in classrooms support the efficacy of the presence of pedagogical agents in shaping affective and cognitive characteristics of the learner. The paper concludes with the discussions of future recommendations for the effective design of and research in pedagogical agent systems. Keywords. pedagogical agents, learning companions, social interaction, online learning, motivation, math learning

3 citations


Journal Article
TL;DR: A flexible agent model, and a tool called AGENTφ for modeling safe composite agents, which allow developers to deal with flexibility requirements in the context of open distributed computing, and specially of ubiquitous and pervasive computing.
Abstract: In this paper, we propose a flexible agent model, and a tool called AGENTφ for modeling safe composite agents. Agents are assembled from fine-grained reusable components, called micro-components, which implement non-functional mechanisms (interaction capabilities, mobility, adaptation skills...). Agents are self-adaptive : when running, an agent can autonomously replace some of its micro-components in order to adapt to runtime conditions. Here, the micro-component level behaves like an adaptable container which hosts the agent's behavior. Static modeling of agents and dynamic self-adaptation features allow developers to deal with flexibility requirements in the context of open distributed computing, and specially of ubiquitous and pervasive computing. An embedded communicating agent (with a GPS component) is developed in order to illustrate our proposal. Experiments show that complexity involved by flexibility constraints is limited due to separation of concerns and levels, and to reuse, still with good performances

1 citations


Journal Article
TL;DR: Empirical findings from MathGirls deployment in classrooms support the efficacy of the presence of pedagogical agents in shaping affective and cognitive characteristics of the learner.
Abstract: This paper introduces the learning environment MathGirls for high school girls learning fundamentals of algebra. Grounded in social cognitive theories of learning, MathGirls utilizes pedagogical agents to create a girl-friendly virtual learning environment. The design constituents of pedagogical agents are reviewed. These constituents are likely to influence building agent/learner relations. The agent design and system architecture of the MathGirls environment are developed to integrate some of the design constituents. Empirical findings from MathGirls deployment in classrooms support the efficacy of the presence of pedagogical agents in shaping affective and cognitive characteristics of the learner. The paper concludes with the discussions of future recommendations for the effective design of and research in pedagogical agent systems. Keywords. pedagogical agents, learning companions, social interaction, online learning, motivation, math learning

1 citations