The notion of context and its importance in knowledge representation and nonmonotonic reasoning was first discussed in Artificial Intelligence by John McCarthy.
Ever since, contexts have found many applications in developing knowledge-based reasoning systems.
Defeasible argumentation has gained wide acceptance…

In a pervasive media and technology landscape that is increasingly global, participatory and connected, one in which learners and teachers can increasingly become creators of knowledge rather than mere consumers of prepared messages and ideas, it is vital for the…

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O pragmatismo é apresentado como uma atitude anti-representacionista, isto é, como uma crítica à idéia de fundamentação do conhecimento ou da verdade. Esta crítica torna-se possível a partir de uma interpretação funcional para o problema do conhecimento, segundo a qual…

O pragmatismo é apresentado como uma atitude anti-representacionista, isto é, como uma crítica à idéia de fundamentação do conhecimento ou da verdade. Esta crítica torna-se possível a partir de uma interpretação funcional para o problema do conhecimento, segundo a qual…

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…

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 study examined growth in graphical literacy for students contributing to an online, multimedia, communal environment as they advanced their understanding of biology, history and optics. Their science and history studies started early in Grade 3 and continued to the…

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,…

In the present paper I describe the conceptual level of representation of a database, currently in development, which aims at fulfilling the Functional-Lexematic model. I will concentrate on the semantic component, as it is central for the theory of Functional…