One of the most challenging issues in managing the large and diverse data available on the World Wide Web is the design of interactive systems to organize and represent information...
Modern object-relational database systems are capable of managing multimedia data, e.g. image, video and audio. In this paper we study how such universal database systems can be u...
The result of a distance join operation on two sets of objects R, S on a spatial network G is a set P of object pairs <p, q>, p R, q S such that the distance of an object ...
The recent upsurge in the interest in Semantic Web services and the high-profile projects such as the WSMO, OWLS, and SWSL, have drawn attention to the importance of logic-based ...
Many information systems store their objects in a relational database. If the object schema or the relational schema of an application can change often or in an independent way, it...