In this paper, first we present the experimental results about a small group of people exchanging private and public messages in a virtual community. Our goal is to study the cognitive network that emerges during a chat seance. We used the Derrida coefficient and the triangle structure under the...

A model for opinion formation and anticipation based on the match between hidden personal “preferences” and product qualities is presented. We assume that products and individuals are represented by means of vectors in an L-dimensional “taste” space. The opinion of an individual on a...