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,…

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:…

This paper provides new versions of Harsanyi’s social aggregation theorem that are formulated in terms of prospects rather than lotteries. Strengthening an earlier result, fixed-population ex-ante utilitarianism is characterized in a multi-profile setting with fixed probabilities. In addition, we extend…

We consider entry-level medical markets for physicians in the United Kingdom. These markets experienced failures which led to the adoption of centralized market mechanisms in the 1960's. However, different regions introduced different centralized mechanisms. We advise physicians who do not…

A pesar del progreso que se realiza en el Procesamiento del Lenguaje Natural (PLN) aún estamos lejos de la Comprensión del Lenguaje Natural. Un paso importante hacia este objetivo es el desarrollo de técnicas y recursos que traten conceptos en…

BACKGROUND:Global health research is essential for development. A major issue is the inequitable distribution of research efforts and funds directed towards populations suffering the world's greatest health problems. This imbalance is fostering major attempts at redirecting research to the health…

En este artículo se presentan técnicas de análisis automático de base estadística y
simbólica para la detección y procesamiento de metalenguaje en textos altamente técnicos, en
varios dominios de especialidad. La extracción selectiva de información metalingüística
realizada por el sistema…

Document classification has already been widely studied. In fact, some studies compared feature selection techniques or feature space transformation whereas some others compared the performance of different algorithms. Recently, following the rising interest towards the Support Vector Machine, various studies…

El inusitado crecimiento de la inmigración en los últimos años ha transformado en buena medida la escuela española, incrementando su carácter multicultural, acentuando algunas diferencias entre la red pública y la privada o concertada, obligando a transformaciones notables para adaptar…

En este trabajo se describe el desarrollo de un corpus de preguntas y
respuestas factuales similares a las utilizadas en las conferencias TREC. Dicho corpus
consta de más de 70.000 muestras, cada una de ellas con la siguiente información:
una…