In this paper we introduce a method for distinguishing between informative and uninformative viewpoints as they pertain to an active observer seeking to identify an object in a known environment. The method is based on a generalized inverse theory using a probabilistic framework where assertions are represented by conditional probability density functions. Consequently, the method also permits ...

Collections of objects such as images are often presented visually in a grid because it is a compact representation that lends itself well for search and exploration. Most grid layouts are sorted using very basic criteria, such as date or filename. In this work we present a method to arrange collections of objects respecting an arbitrary distance measure. Pairwise distances are preserved as muc...

This paper introduces the notion of informative labeling schemes for arbitrary graphs. Let f (W) be a function on subsets of vertices W . An f labeling scheme labels the vertices of a weighted graph G in such a way that f (W) can be inferred (or at least approximated) efficiently for any vertex subset W of G by merely inspecting the labels of the vertices of W, without having to use any additio...

In this paper, we present an innovative topic segmentation system based on a new informative similarity measure that takes into account word co-occurrence in order to avoid the accessibility to existing linguistic resources such as electronic dictionaries or lexico-semantic databases such as thesauri or ontology. Topic Segmentation is the task of breaking documents into topically coherent multi...

This paper studies the effects of advertising in a Bertrand duopoly model with informative advertising, which is an extension of Grossman and Shapiro (1984). It introduces spillover advertising effects on top of the direct advertising effects. Also, the model involves R&D activities, which make the model dynamical. It is shown that the spillover effects would make the environment more monopolis...