Three possible determinants of typicality were examined in categories of common household objects: family resemblance and an exemplar’s similarity to a geometrical centroid of the category, either unweighted or weighted for name frequencies. Similarity to the geometrical centroids in 2to 6-dimensional spaces outperformed family resemblance in predicting typicality. Finally, optimizing the predi...

We discuss the grazing collision limit of certain kinetic models of Bose-Einstein particles obtained from a suitable modification of the onedimensional Kac caricature of a Maxwellian gas without cut-off. We recover in the limit a nonlinear Fokker-Planck equation which presents many similarities with the one introduced by Kaniadakis and Quarati in [13]. In order to do so, we perform a study of t...

Faces are among the most important classes of objects computers have to deal with. Consequently, automatic processing and recognition of facial images have attracted considerable attention in the last decades. In this chapter we focus on a strict view of facial image processing, i.e. transforming an input facial image into another and involving no high-level semantic classification like face re...

Irregularities in observed population densities have traditionally been attributed to discretization of the underlying dynamics. We propose an alternative explanation by demonstrating the evolution of spatiotemporal chaos in reaction-diffusion models for predator-prey interactions. The chaos is generated naturally in the wake of invasive waves of predators. We discuss in detail the mechanism by...

Children with autism spectrum disorder suffer from a deficit that prevents them from observing, interpreting, and learning social cues. Clinical studies in social skills training have proposed methods, such as exaggeration, to enhance autism intervention strategies. Socially assistive robotics is an area of human-robot interaction that has the potential to improve social activity. Inspired by s...