The state of the art sees content-based filters tending towards collaborative filters, whereby email is filtered at the MTA with users feeding information back about false posit...
Abstract. Much previous work on image retrieval has used global features such as colour and texture to describe the content of the image. However, these global features are insuffi...
Abstract. A novel approach to object-based video indexing and retrieval is presented, employing an object segmentation algorithm for the real-time, unsupervised segmentation of com...
Abstract. In this paper, we address the problem of expressing objectoriented concepts in terms of Petri nets. This is interesting, first, as a possibility of representing concurre...
Counterterrorism and intelligence tasks rely on the efficient collection, analysis and dissemination of information. While information systems play a key role in such tasks, databa...