Work on rst-order clustering has primarily been focused on the task of conceptual clustering, i.e., forming clusters with symbolic generalizations in the given representation language. By contrast, for propositional representations, experience has shown that simple algorithms based exclusively on distance measures can often outperform their concept-based counterparts. In this paper, we therefor...

In this paper we focus on the transformation of a conceptual schema into an internal schema. For a given conceptual schema, quite a number of internal schemata can be derived. This number can be reduced by imposing restrictions on internal schemata. We present a transformation algorithm that can generate internal schemata of several types (including the relational model and the NF 2 model). Gui...

Triadic concept graphs have been introduced as a mathema-tization of conceptual graphs with subdivision. In this paper it is shown that triadic concept graphs of a triadic power context family always form a complete lattice with respect to the generalization order. For stating this result, a clariication of the notion of generalization is needed. It turns out that the generalization order may b...

We are able to use many types of information available in the environment when categorizing or making inferences. This research explores how two types of information—perceptual and conceptual—may be used to different extents in different tasks. The method takes advantage of the distinction between animate and artifact categories. In two experiments, adult participants were given perceptual and ...

the main purpose of this research is to investigate the role of knowledge management in the holographic organizations. in order to achieve this purpose, after reviewing research background and theoretical foundations, the research’s conceptual framework has been presented. the statistical population includes ilam medical sciences academic members. the method used is applied in terms of objectiv...

This paper studies the notions of conceptual grounding and explanation (which includes notion mathematical explanation), with an aim clarifying links between them. On one hand, it analyses complex examples these two that bring to fore features are easily overlooked otherwise. other provides a formal framework for modeling both explanation, based on concept proof. Inspiration analogies drawn rec...

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A strong version of the Whorfian hypothesis is that the influence of language on thought is obligatory or at least habitual; that is, thought is always, or under most circumstances, guided by language. We argue, in contrast, that at the lexical level, language and thought need not closely or commonly mirror each other. Naming – of objects, events, or other entities -is a communicative process t...