Argumentative formalisms have been widely recognized as knowledge representation and reasoning tools able to deal with incomplete and potentially contradictory informa- tion. All such formalisms are computationally demanding. Hence, optimizing argumen- tative systems has been approached from di erent views.

Modeling is one of the most important activities throughout any software development life cycle. Within object-oriented modeling, class generalization is a powerful, yet simple concept for abstracting commonalities between classes. Although, as classes evolved in the model, their semantics may…

Effective document retrieval using domain knowledge and semantics is one of the major challenges in Information Retrieval. Over the last years, there has been a growing interest in ontologies as an artifact for human knowledge representation and a critical component…

El objetivo de esta investigación es el estudio de la problemática de inconsistencia que pueda aparecer en los Sistemas Basados en Conocimiento (SBC). Los SBC pueden ser clientes de muchas fuentes de información, y estas pueden contener información inconsistente al…

Frequently we become amazed with the increasing number of problems to be solved that fiourish while facing daily activities. Often, related to these problems we llave also an incredible amount oí data. Since we cannot allways afford time and resources…

Un rasgo fundamental del nuevo modelo productivo que se consolidó en las últimas dos décadas es la centralidad que adquieren las capas empresariales. Este hecho encierra una serie de interrogantes en los que conviene detenerse, en tanto aluden al análisis…

This study investigates how Hildegard of Bingen (1098-1179), a medieval abbess used visions received during the prodromal stages of migraines to reconstruct herself symbolically. In her visions she believed that God, the "Living Light" instructed her "to write and say…

Knowledge acquisition for systems based on knowledge can be called knowledge engineering, according to Feigenbaum (1980) who used the term to describe the reduction of a wide context of knowledge for a set of facts and rules. The term Knowledge…

Human designers use previous designs extensively in solving new design problems and Case-Based Reasoning (CBR) provides a knowledge representation paradigm which attempts to model such process. In this thesis we present a case-based approach to solving design problems by retrieving…

This thesis presents a survey of the development of economic growth theory, including the latest developments in the relationship between international economic integration through international flows of goods and/or knowledge and endogenous economic growth. Based on the following literature review,…