The knowledge imperfections should be considered when modeling complex problems. A solution is to develop a model that reduces the complexity and another option is to represent the imperfections: uncertainty, vagueness and incompleteness in the knowledge base. This paper proposes…

In systems where agents are required to interact with a partially known and dynamic world, sensors can be used to obtain further knowledge about the environment. However, sensors may be unreliable, that is, they may deliver wrong information (due, e.g.,…

This paper describes a small scale collaborative research project designed to
promote undergraduate students’ academic literacy through proactive
methods of support embedded within the content of an early childhood
education module. Two of the professionals involved in the project offer

Biogeography is a discipline included in comparative biology that studies the distribution of organisms, the distributional patterns of organisms are analyzed through the application of different methods, depending on the question formulated. In this work the principles and advantages of…

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La Enfermería no ha sido ajena a la investigación, pues fue Florence Nightingale quien la introdujo por primera vez. La investigación ofrece la posibilidad de mejorar y desarrollar la profesión, tanto en su componente disciplinar como clínico. En este trabajo…

The development of a data warehouse (DW) system is based on a conceptual multidimensional model, which provides a high level of abstraction in accurately and expressively describing real-world situations. Once this model is designed, the corresponding logical representation must be…

En: Proceedings of KR-2006, Tenth International Conference on Principles of Knowledge Representation and Reasoning, Lake District of the United Kingdom, june 2-5, 2006, p. 90-99

Soybean powdery mildew (Erysiphe diffusa) was considered a minor disease in Brazil in the decades immediately after its identification. However, since the outbreak in 1996/97 in all cultivated areas the disease has become a constant threat to farmers and losses…

La cuenca del Congo es la selva tropical más grande después del Amazonas. Este bosque cuenta con más de 28 especies de árboles dominantes (muy grande), de un valor comercial importante, como Wenge y Bosee Clair-. En una parte del…