Since academic year 2003/2004 a series of modifications has been introduced in physics subjects of the Engineering degrees of the University of Alicante in order to achieve a continuous evaluation. The importance of continuous evaluation increases the students’ success, in…

Data mining is one of the most important analysis techniques to automatically extract knowledge from large amount of data. Nowadays, data mining is based on low-level specifications of the employed techniques typically bounded to a specific analysis platform. Therefore, data…

This volume has an interesting variety of articles, which at first glance, may not seem to have much in common. However, taking a deeper look at the contents of the texts, several common nexus emerge, above all the feeling that…

AbstractVirtual Worlds (VWs) like Second Life provide a multiuser 3-D environment that may be utilized for either classroom-based or autonomous language learning. While Second Life is one of the most popular VWs at the current time (especially if differentiated from…

Proponemos un modelo de interdependencia general lineal para la economía mundial, y utilizamos datos de la División Estadística de las Naciones Unidas para estimar sus parámetros. Esto nos permite evaluar la propagación de un shock exógeno a los gastos autónomos…

This paper presents a data structure based on Sparse Spatial Selection (SSS) for similarity searching. An algorithm that tries periodically to adjust pivots to the use of database index is presented. This index is dynamic. In this way, it is…

The impact on temperature of the urban growth in central Mexico from 1993 to 2009 and the sensitivity of forecast to change in land cover are studied using high resolution numerical simulations. The mesoscale atmospheric Weather Research and Forecasting model…

Este artículo reporta el trabajo de investigación realizado en base a datos extraídos de la Encuesta Anual realizada por la CESSI durante el año 2007 entre organizaciones dedicadas al desarrollo de Software en Argentina. Si bien la temática de mejora…

Causalidad entre salud y productividad no resulta directa de establecer. Por un lado, mayores ingresos pueden trasladarse en una dieta de mejor calidad. Por el otro, es probable que un trabajador saludable sea más productivo. Este trabajo analiza el efecto…

The Semantic Web attempts to reach a state in the future where everything on the Web will no longer be only machine-readable, but also machine-understandable. An ontology is an explicit specification of a conceptualization. A conceptualization is an abstract, simplified…