introduction: hospital portals, as the first virtual entry, play an important role in connecting people with hospital and also presenting hospital virtual services. the main purpose of this article was to suggest a conceptual model to improve tehran private hospital portals. the suggested model can be used by all the health portals that are in the same circumstances and all the health portals w...

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While learning mathematics or computer science, beginning students often encounter significant problems with abstract concepts. In both subjects there tend to be large numbers of students failing the class or dropping out during the first semesters. There is a substantial existing body of literature on this topic from a didactic perspective, but in our opinion an investigation from a semioticco...

The goal of conceptual clustering is to build a set of embedded classes, which cluster objects based on their similarities. Knowledge organization aims at generating the set of most specific classes: the Generalization Space. It has applications in the field of data mining, knowledge indexation or knowledge acquisition. Efficient algorithms have been proposed for data described in <attribute, v...

ions for Knowledge Organization of Relational Descriptions Isabelle Bournaud, Mélanie Courtine, Jean-Daniel Zucker 1 LRI, Université Paris-Sud, Av. du Général de Gaulle, 91405 Orsay Cedex, France [email protected] 2 LIP6 – Pole IA, Université Paris VI, 4 place Jussieu, 75252 Paris Cedex, France {Melanie.Courtine, Jean-Daniel.Zucker}@lip6.fr Abstract. The goal of conceptual clustering is ...