En este trabajo describimos la primera prueba sistemática realizada para evaluar el rendimiento de Sentitext, un sistema de análisis de sentimiento aún en fase de desarrollo. A diferencia de la mayoría de los sistemas existentes, el funcionamiento de Sentitext está…

Inside an organization there is information that can only be generated by people, then, when a decision maker in any time and anywhere of an organization requires this information, he/she has to solicit it to who has the ability of…

This paper describes the development of an image retrieval
system that combines probabilistic and ontological information1. The
process is divided in two different stages: indexing and retrieval. Three
information flows have been created with different kind of information
each one:…

In this paper, we present an approach to student's evaluation in a well-defined domain based on a semantic network. A similarity matrix based on the semantic memory structure of humans is used to build a semantic distance model in order…

Most neural network learning algorithms cannot use knowledge other than what is provided in the training data. Initialized using random weights, they cannot use prior knowledge such as knowledge stored in previously trained networks. This manuscript thesis addresses this problem.…

Semantic, Syntax and Pragmatic represent in themselves three different
approaches to the same concern: semiotic structure.
The aim of this paper is to provide a general view of Landowskian Semiotics,
discussing the results achieved from different fields of knowledge to…

En este artículo se presenta un estudio sobre el uso e integración de una ontología en
un corpus biomédico. Nuestro objetivo es comprobar cómo afectan distintas maneras de
enriquecimiento e integración de conocimiento sobre un corpus de dominio específico cuando

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Muchos son los factores que determinan la dinámica de poblaciones de plantas entre los cuales hay demográficos (variabilidad ambiental,
densidad poblacional, etc.) y genéticos (variabilidad genética de los individuos, deriva genética y/o depresión por consanguinidad). Entender
los efectos de esos…

This paper focuses on the role of food tourism in delivering sustainability agendas by examining how the agriculture and tourism sectors have struggled to realise measurable successes because of constraints, conflicting ambitions and low levels of social capital. It focuses…