Now showing items 1-6 of 6

    • Hurtado, Carlos; Levene, Mark (SPRINGER-VERLAG BERLIN, 2006)
      In this paper, we present a class of rules, called context-topic rules, for discovering associations between topics and contexts, where a context is defined as a set of features that can be extracted from the log file of ...
    • Hurtado, Carlos; Guerrero, Luis A. (GRAZ UNIV TECHNOLGOY, 2011)
      Computer Supported Collaborative Learning could highly impact education around the world if the proper Collaborative Learning tools are set in place. In this paper we describe the design of a collaborative learning ...
    • Gutiérrez Gallardo, Claudio; Hurtado, Carlos; Mendelzon, Alberto O. (ACADEMIC PRESS INC ELSEVIER SCIENCE, 2011-05)
      The Semantic Web is based on the idea of a common and minimal language to enable large quantities of existing data to be analyzed and processed. This triggers the need to develop the database foundations of this basic ...
    • Hurtado, Carlos; Vaisman, Alejandro (SPRINGER-VERLAG BERLIN, 2006)
      Time management is a key feature needed in any query language for web and semistructured data. However, only recently this has been addressed by the Semantic Web community, through the study of temporal extensions to RDF ...
    • Dupret, Georges; Piwowarski, Benjamin; Hurtado, Carlos; Mendoza, Marcelo (SPRINGER-VERLAG BERLIN, 2006)
      Query logs record past query sessions across a time span. A statistical model is proposed to explain the log generation process. Within a search engine list of results, the model explains the document selection - a user's ...
    • Bastarrica Piñeyro, María Cecilia; Hurtado, Carlos; Vaisman, Alejandro (SPRINGER-VERLAG BERLIN, 2006)
      In the last few years there has been an increasing interest in studying ontology evolution and versioning for the World Wide Web, in particular, applied to OWL. However, little attention has been given to the problem of ...