In this Note we present new results which bring about hitherto unknown relations between certain Bernstein di¤usions wandering in bounded convex domains of Euclidean space on the one hand, and processes which typically occur in forward-backward systems of stochastic di¤erential equations on the other hand. A key point in establishing such relations is the fact that the Bernstein di¤usions we co...

We discuss the various explanations that have been offered to account for subjects’ behaviour in Wason’s famous selection task, and find them wanting. We argue that what is lacking is a good understanding of a subject’s semantics for the key expressions involved, and an understanding of how this semantics is affected by the demands the task puts upon the subject’s cognitive system.

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This paper reports on a user-centred evaluation of search process characteristics within a thesaurus-enhanced search environment and the ways in which these characteristics affect users’ judgment of search terms and results. The study has addressed the questions relating to the types of search moves and the relationship between search moves and search terms and results. Résumé : Cet article pré...