The paper presents a case study illustrating a collaborative problem solving process in Virtual Communities of Practice. The process relies on the existence of an underlying shared knowledge base – a repository of resources, and is carried out collaboratively by…

The Knowledge Engineering Suite is an ontology production method, based on relationship networks, for knowledge representation inside specific contexts. The production of these ontologies has three basic steps, since catching the client data, knowledge base creation, and information retrieval and…

It is interesting and important to compare, analyze and assess the alternative tools that could be used in the area of Knowledge Representation. In this paper we present a reasearch line associated to this goal: to formally establish the relation…

Resumo: A expressiva troca de germoplasma com outros países, por meio da importação e exportação de produtos agrícolas representa um aumento no risco de introdução desta praga no Brasil, por isso a importância do levantamento de informações acerca das características…

This paper proposes an original generic hierarchical framework in order to facilitate the modeling stage of complex autonomous robotics mission planning problems with action uncertainties. Such stochastic planning problems can be modeled as Markov Decision Processes [5]. This work is…

Given an instance of an optimization problem together with an optimal solution, we consider the scenario in which this instance is modified locally. In graph problems, e. g., a singular edge might be removed or added, or an edge weight…

Categories for evaluation of educative software by different authors are analyzed. For STI theoretical basis are: learn by doing, construction of knowledge, mental conflict, zone of proximal development, learning by discovery, conceptual change, and learning for the understanding and the…

Este trabajo profundiza en el conocimiento del poblamiento humano y del Arte rupestre Levantino en un marco geográfico concreto. La lectura espacial de estos elementos permite presentar hipótesis sobre las comunidades humanas que ocuparon tierras del Campo de Hellín (Albacete)…

Villacís, Wagner, La enfermedad del Alzheimer como muchos la llaman es la enfermedad del siglo, un mal que afecta al grupo de adultos mayores, con síntomas degenerativos causantes de incapacidad en quien lo padece, su tratamiento es aún tema de…

Cette thèse s’interroge sur le phénomène du jeune téléspectateur contemporain. Je questionne cette « réalité », qui fait l’objet de discours et de pratiques sociales au quotidien. L’idée de l’existence « objective » de l’enfant téléspectateur depuis l’avènement de la…