This paper introduces a new approach dedicated to the Ontology Personalization. Inspired by works in Cognitive Psychology, our work is based on a process which aims at capturing the user-sensitive relevance of the categorization process, that is the one which is really perceived by the end-user. Practically, this process consists in decorating the Specialization/Generalization links (i.e. the i...

One of the challenges in the field of content-based image retrieval is to bridge the semantic gap that exists between the information extracted from visual data using classifiers, and the interpretation of this data made by the end users. The semantic gap is a cascade of 1) the transformation of image pixels into labelled objects and 2) the semantic distance between the label used to name the c...

This paper proposes and examines a semiotic framework to inform the use of technology in mathematics education. Semiotics asserts that all cognition is irreducibly triadic, of the nature of a sign, fallible, and thoroughly immersed in a continuing process of interpretation (Halton, 1992). Mathematical meaning-making or meaningful knowledge construction is a continuing process of interpretation ...

Design-based research studies are conducted as iterative implementationanalysis-modification cycles, in which emerging theoretical models and pedagogically plausible activities are reciprocally tuned toward each other as a means of investigating conjectures pertaining to mechanisms underlying content teaching and learning. Yet this approach, even when resulting in empirically effective educatio...

Here, we present a semiotic model of signaling pathways in B-cells in order to substantiate the view that semiotic modeling is required for the referential aspect of signaling processes to be grasped. We discuss how a process of asymmetry-formation through membrane closing puts living systems under selection pressure to develop semiotic competence, and, thus, signaling becomes a key process in ...

What semiotic potential resides in a 3D virtual environment? This paper accounts for some system features of a Norwegian virtual world, Patagonia, which is part of the 3D Render Ware based ActiveWorlds. It is argued that these features constitute a semiotic resource in interplay with language. The paper suggests visual semiotics as an additional framework to discourse studies of computer-mediat...