Hilton José Silva de Azevedo

• DR
• Federal University of Technology of Paraná

This paper concerns the relationship between agents or multi-agent systems and distributed communities of practice. It presents a review of a number of agent and multi-agent applications with features that could contribute to supporting distributed communities of practice. The association is promising because of features like autonomy, pro-activity...

We present a contribution based on encryption to the model for the certification of trust in multiagent systems. The originality of the proposal remains in the use of asymmetric keys that allow the local storage of testimonies with the service agents that were assessed. The aim is to raise the level of efficiency that client agents have when contra...

Virtual communities and distributed communities of practice leave traces of their activities that are a valuable source of research material. At the same time, studying this kind of community requires new methods, techniques and tools. In this chapter, we present the Community Agent: a tool to follow the evolution of the domain of a distributed Com...

Virtual communities and distributed communities of practice leave traces of their activities that are a valuable source of research material. At the same time, studying this kind of community requires new methods, techniques and tools. In this chapter, we present the Community Agent: a tool to follow the evolution of the domain of a distributed Com...

This paper discusses a tool to study the relations among group members of a social network that evolve using a virtual environment. Understanding how these relations are built and maintained is essential to foster favorable conditions that can facilitate collective and individual learning. The focus of interest is how inner relations affect both th...

Although good content correctness can be observed on the web, one may have difficulty finding a set of entries covering a complete syllabus of a course with a coherent pedagogic approach. We conducted an experiment to test the hypothesis if a collection of didactic contents can be discussed, distributed and produced by an online community of teache...

We present a model for the certification of trust in multi-agent systems based on encryption. The objective is to raise the level of efficiency that client agents have when contracting specialized service agents. We make three hypotheses: (i) client agents are able to measure and inform the quality of a service they receive from a service agent; (i...

The paper presents an approach to building multi-agent systems. We are interested in complex agents able to reason about their tasks, and to display a proactive behavior, when installed on a network of heterogeneous computers. We developed the concept of a generic agent (GAg), equipped with the basic communication and mental structure, but ignorant...

Despite the technological enhancement IT has had, some main points still have no satisfactory solutions and constitute a research subject for those interested in knowledge management. It does not seem evident that the adoption of either groupware technologies or collaborative environments induces effective collaborative/cooperative behavior in team...

This chapter introduces the design and implementation of a multiagent system based on a collaborative online learning environment (COLE). The purpose of developing such an environment is to improve social competences along with traditional content-related ones in lifelong learning. As educators would be unable to handle the huge amount of data conc...

This chapter introduces the design and implementation of a multiagent system based on a collaborative online learning environment (COLE). The purpose of developing such an environment is to improve social competences along with traditional content-related ones in lifelong learning. As educators would be unable to handle the huge amount of data conc...

We present an open multiagent architecture for intelligent collaborative information systems based on the concepts of cognitive agents and machine learning. We assume a double hypothesis: (i) agents collaborate to reach their goals; (ii) agents can find and interact with other agents in a network. This assumption implies specialized services that h...

This chapter introduces the design and implementation of a multiagent system based on a collaborative online learning environment (COLE). The purpose of developing such an environment is to improve social competences along with traditional content-related ones in lifelong learning. As educators would be unable to handle the huge amount of data conc...

Changes in work and its practice are leading corporations to valorize workers not only for technical competencies but also social ones. This tendency has consequences both for workers who need to improve such competencies (most of the time on the fly), and for students who have to be prepared for such market. The aim of this work is to show how con...

:Whilst we have a number of techniques for building multiagent systems, suchtechniques assume that the number and role of each agent in the system is known apriori. Unfortunately it is rarely the case in practice, in particular when trying tobuild multiagent knowledge management systems in R&D environments exhibitinga high rate of turnover. Thus, w...

This paper presents a certified confidence model which aims to ensure credibility for information exchanged among agents which inhabit an open environment. Generally speaking, the proposed environment shows a supplier agent b which delivers service for a customer agent a. The agent a returns to b a crypto-graphed evaluation r on the service deliver...

Resumo. Este trabalho apresenta os principais resultados de um estudo comparativo sobre as condições de aplicabilidade e limitações das tecnologias Workflow (ferramenta WorkXpert) e BSCW (Basic Support for Cooperative Work) no contexto de um ambiente de Engenharia Simultânea, especificamente no Núcleo de Pesquisa em Engenharia Simultânea (NuPES) do...

Observa-se a profusão de tecnologias que propõem tratar de problemas inerentes à gestão do conhecimento e à colaboração entre pessoas, mas há carência de estudos acerca da eficácia e abrangência dessas tecnologias quando aplicadas a situações pon-tuais, como no processo de desenvolvimento de produtos. A problemática associada à gestão do conhecimen...

Resumo. Este trabalho discute uma proposta de concepção de um agente para gestão de uma biblioteca virtual de um ambiente para aprendizagem colaborativa. O ambiente online em questão busca, além do desenvolvimento de competências técnicas, o desenvolvimento de competências sociais nos seus usuários. São apresentadas as principais características do...

This paper discusses the main lines used to model intelligent agents that will operate in a Collaborative Online Learning Environment – COLE. The aim of COLE is to evaluate the contribution that Information Technology and Multiagent Systems can bring to the discussion about new adult learning processes. The work hypothesis is that online environmen...

RESUMO: Busca-se na literatura pontos de vista sobre a prática interdisciplinar na docência, em particular, a compreensão da relação e da influência da interdisciplinaridade no campo dos estudos da disciplina de Ciência. Neste sentido, busca-se como o entendimento do como e porque as questões relativas à prática pedagógica nesta disciplina não se e...

This work is a case study. It focus on use of Workflow technology for aid management and Research & Development projects in a concurrent engineering context. Identifying, modelling and implementation of a Workflow for printed circuit board design is presented. The study of the activities performed by the group was conducted using a qualitative appr...

Resumo. As mudanças sociais exigem profissionais com novos conjuntos de competências como colaboração, negociação, raciocínio crítico ou capacidade de aprender continuamente. Para isso são necessários novos processos de aprendizagem que considerem os alunos de forma mais ampla, tratando uma grande quantidade de variáveis. As tecnologias de informaç...