AbstractDue to aspect-oriented mechanisms explosion, their concepts arrive to distributed systems tackling concepts as security, persistence, or synchronization, especially in middleware approaches. Regarding distributed databases, the research has been focused mainly on object-oriented databases. Based on the great impact of…

El objetivo del proyecto Portal da Língua Portuguesa es construir, con un doble
objetivo, un juego de recursos léxicos. En primer lugar, estos recursos sirven como fuente de
información para una página web sobre la lengua portuguesa para el público…

This paper shows models of data description that incorporate uncertainty like models of data extension EER, IFO among others. These database modeling tools are compared with the pattern FuzzyEER proposed by us, which is an extension of the EER model…

THE DISASTERS CAUSED BY NATURAL PHENOMENA HAVE BEEN PRESENT ALL ALONG HUMAN HISTORY; NEVERTHELESS, THEIR CONSEQUENCES ARE GREATER EACH TIME. THIS TENDENCY WILL NOT BE REVERTED IN THE COMING YEARS; ON THE CONTRARY, IT IS EXPECTED THAT NATURAL PHENOMENA WILL…

Historical documents and newspapers from Mexican Pacific states (north of 14º N) were reviewed to determine the incidence of landfalling tropical cyclones from 1850 to 1949, prior to the start of the United States National Hurricane Center database. The reviewed…

The general objective of this thesis is the development of an adaptive technique for extracting knowledge in large databases. Nowadays, technology allows storing huge volumes of information. For this reason, the availability of techniques that allow, as a first stage,…

En este trabajo hemos estudiado algunas paráfrasis contenidas en un recurso lingüístico llamado badele.3000, una base de datos que agrupa los 3.600 sustantivos más frecuentes del español, así como más de 2.800 verbos de uso habitual. Su combinación restringida da…

AbstractThis study performs a comprehensive analysis of the effect of different environmental, demographic and vehicle variables on the severity of two-vehicle crashes. The limitations associated with previous studies have been addressed by using a large crash database, properly defining the…

AbstractSince the emergence of public-private partnerships (PPPs) in the 1980s, there has been a structural change in the way countries now finance and provide public infrastructure. Although national governments apparently encourage PPPs, and many have succeeded, some others have failed.…

Los así denominados Phone Log-Likelihood Ratios (PLLR), han sido introducidos como características alternativas a los MFCC-SDC para sistemas de Reconocimiento de la Lengua (RL) mediante iVectors. En este artículo, tras una breve descripción de estas características, se proporcionan nuevas evidencias…