In the last few years, several studies have emphasized the use of ontologies as an alternative to organization of the information.
The notion of ontology has become popular in fields such as intelligent information integration, information retrieval on the Internet,…

Humans have always been intrigued by their ability to reason. We have constantly attempted to emulate this process, trying almost everything, from physiological explanations, to sociological accounts. The approach with possibly the longest tradition conceives this process as a mere…

Decision tree learning algorithms have been successfully used in knowledge discovery. They use induction in order to provide an appropriate classification of objects in terms of their attributes, inferring decision tree rules. This paper reports on the use of ID3…

Collaborative systems are becoming a widely used tool particularly among professional communities and research groups. They provide a suitable context for distributed people working on the same subject to concentrate their work in a shared place to which everyone has…

No contexto econômico atual, onde a competição entre as empresas está cada vez mais relacionada à sua capacidade de transformar informação em conhecimento e este último em decisões e ações de negócio, o Data Warehouse (DW) exerce papel fundamental como…

Objetivo: Cuidar selectivamente la salud identificando y georrefenciando la totalidad de la población, y no sólo para aquellos que demandan atención.
Métodos: Un total de 48 800 habitantes de Ensenada, Buenos Aires-Argentina fueron censados en aspectos socio-económico-sanitarios y sus datos…

Mediante técnicas paleoparasitológicas cuantitativas y cualitativas se examinaron los sedimentos de la cavidad pélvica de dos esqueletos humanos. Los individuos fueron hallados en dos enterratorios asociados al asentamiento español de fines de siglo XVI "Nombre de Jesús" (Cabo Vírgenes, provincia…

Mediante técnicas paleoparasitológicas cuantitativas y cualitativas se examinaron los sedimentos de la cavidad pélvica de dos esqueletos humanos. Los individuos fueron hallados en dos enterratorios asociados al asentamiento español de fines de siglo XVI "Nombre de Jesús" (Cabo Vírgenes, provincia…

Since huge amounts of spatial data can be easily collected from various applications, ranging from remote sensing technology to geographical information system, the extraction and comprehension of spatial knowledge is a more and more important task. Many excellent studies on…

Conocida como ácido ascórbico, la Vitamina C es una vitamina que interviene en múltiples procesos, tales como: formación de hormonas, neurotransmisores, carnitina, conversión del colesterol en ácidos biliares, incremento en la absorción de hierro, además de su fundamental intervención en…