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:…

Defeasible argumentation is one of the approaches that attempt to address the challenges arising when we reason defeasibly, with several formalisms in the literature reaching a mature state. Nowadays, several of them started shifting their semantics towards a dialectical characterization.…

This paper describes the connection memory, a machine for concurrently manipulating knowledge stored in semantic networks. We need the connection memory because conventional serial computers cannot move through such networks fast enough. The connection memory sidesteps the problem by providing…

Teacher’s talk is an expected and extensive routine of classroom life. Many aspects of Instructional clarity as a preparation to the lecture were addressed already by many authors (e.g., Gliessman, Pugh, Brown, Archer, and Snyder, 1989; Metclaf, 1992; Hiller, 1971;…

This report provides an overview of a research Initiative to Study the Social Effects of Culture (ISSEC) which was jointly undertaken by the Department of Canadian Heritage (PCH), the Canadian Cultural Research Network (CCRN) and the University of Ottawa as…

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