A hierarchical representation of objects is dynamically generated from the input of a virtual vision system. It is used to analyze a sequence of actions and extract behavior rules that can be utilized by the inference machine CLIPS. The vision system is assumed to provide simplified positional and shape information about visible 3D silhouettes in a frame per frame basis. A virtual agent, attemp...

This document present work we have done for the CLEF 2004 participation. We promote the use of surface-syntactic parsing to extract indexing terms. We also promote the Derivation From Randomness weighting. For the bilingual part, we have tested reinforcement query weighting using an association thesaurus.

In this paper we describe the methodology developed in the framework of a feasibility study for the derivation of a semantically annotated French lexicon from a monolingual Italian lexical resource. Firstly, an outline of the source lexicon is provided. Then, the two different and complementary strategies that have been experimented for pairing off the relevant monolingual Italian entries and t...

This paper describes teacher development issues arising in a school based collaborative case study, the Computers and Learning in Primary Schools (CLIPS) research project. This longitudinal project has been based in five schools in Melbourne, Australia since 1992. This paper includes relevant exhacts from the data of one of the case studies and discussion of some overall findings of the project...

A mathematical framework for quantitative SPECT (single photon emission computed tomography) reconstruction of the heart is presented. An efficient simultaneous compensation approach to the reconstruction task is described. The implementation of the approach on a digital computer is delineated. The approach was validated by experimental data acquired from chest phantoms. The phantoms consisted ...