The University of Portland Office of Computer and Telecommunication Services (CTS) created an Intranet web site for the University community during the summer of 1998. In the summ...
: Manufacturing systems are changing its structure and organisation. Supply chain are evolving to more coupled organisations, like virtual enterprises, though maintaining the singl...
In this paper we propose a visual interface for the specification of predicates to be used in queries on spatio-temporal databases. The approach is based on a visual specification...
Spatiotemporal applications, such as fleet management and air traffic control, involving continuously moving objects are increasingly at the focus of research efforts. The repres...
To support the retrieval and fusion of multimedia information from multiple sources and databases, a spatial/temporal query language called ΣQL is proposed. ΣQL is based upon th...