Various techniques have been proposed for incorporating constraints in interval branch and bound algorithms for global optimization. However, few reports of practical experience with these techniques have appeared to date. Such experimental results appear here. The underlying implementation includes use of an approximate optimizer combined with a careful tesselation process and rigorous veriica...

A new approach to off-line signature verification using non parametric Bayesian approach is discussed. Given sample(s) of Genuine signatures of an individual, the task of signature verification is a problem of classifying a questioned(test) signature as Genuine or Forgery(skilled). The verification problem is a two step approach (i)Enrollment: Genuine signature samples of an individual are prov...

In this paper we propose a wearable vision interface system named “I’m Here!” to support a user’s remembrance of object location in everyday life. The system enables users to retrieve certain information from a video database that has recorded a set of the latest scenes of target objects which were held by the user and were observed from the users’ viewpoint. We propose the object recognition m...

We examine variation in the concentration of inventive activity across 72 of North America’s most highly innovative locations. In 12 of these areas, innovation is particularly concentrated in a single large firm; we refer to such locations as “company towns.” We find that inventors employed by large firms in these locations tend to draw disproportionately from their firm’s own prior inventions ...