Approaches to artificial intelligence research based on autonomous agents have thus far primarily relied on cognitive science and other psychologically motivated approaches to the social world. These approaches have been a logical outcome of the researchers' concentration on agent building. However, recent developments in the field have revealed the need for a wider and primarily socially cente...

Let m(r, k) denote the minimum number of edges in an r-uniform hypergraph that is not k-colorable. We give a new lower bound on m(r, k) for fixed k and large r. Namely, we prove that if k 2, then m(r, k) (k)k(r/ln r) . © 2003 Wiley Periodicals, Inc. Random Struct. Alg., 24: 1–10, 2004

The past two years have seen the rapid development of new recognition methods for protein structure prediction. These algorithms ’thread’ the sequence of one protein through the known structure of another, looking for an alignment that corresponds to an energetically favorable model structure. Because they are based on energy calculation, rather than evolutionary distance, these methods extend ...

We introduce a class of pseudodifferential operators in the anisotropic setting induced by an expansive dilation A which generalizes the classical isotropic class S γ,δ of inhomogeneous symbols. We extend a well-known L -boundedness result to the anisotropic class S δ,δ(A), 0 ≤ δ < 1. As a consequence, we deduce that operators with symbols in the anisotropic class S 1,0(A) are bounded on L p sp...

Some universities may not have enough resources to provide each student with a separate device in the laboratory. When the number of students in the experiment exceeds the number of devices, then the experiment is carried out by some of the students only while the rest remains indifferent to the experiment. Therefore, not all the students can benefit from the experiment. Nowadays remote laborat...

The aim of this paper is twofold: (i) give a large-scale description in realized word-final schwas of French lexical words for different regions (North vs. South) and different speaking styles (read vs. spontaneous speech); (ii) highlight differences in prosodic features and test these differences via automatic classification techniques. The proposed study relies on a subset of 12.5 hours of th...

We study n × n symmetric random matrices H, possibly discrete, with iid abovediagonal entries. We show that H is singular with probability at most exp(−nc), and ‖H−1‖ = O(√n). Furthermore, the spectrum of H is delocalized on the optimal scale o(n−1/2). These results improve upon a polynomial singularity bound due to Costello, Tao and Vu, and they generalize, up to constant factors, results of T...

We demonstrate a dialogue system and the accompanying authoring tools that are designed to allow authors with little or no experience in building dialogue systems to rapidly build advanced question-answering characters. To date seven such virtual characters have been built by non-experts using this architecture and tools. Here we demonstrate one such character, PFC Sean Avery, which was develop...