Virtual worlds are developing rapidly over the internet. They are visited by avatars and staffed with Embodied Conversational Agents (ECAs). An avatar is a representation of a phys...
Protocols are modular abstractions that capture patterns of interaction among agents. The compelling vision behind protocols is to enable creating customized interactions by refi...
We propose a novel unsupervised learning framework for activity perception. To understand activities in complicated scenes from visual data, we propose a hierarchical Bayesian mod...
The Wang Notation Tool (WNT) is a semiautomatic, interactive tool that converts tables to Wang notation ? a layout independent representation of tables where all relationships bet...
This paper describes the architecture of a visual surveillance system that combines real time computer vision algorithms with logic programming to represent and recognize activiti...