In this paper we study the expressive power of query languages for nested bags. We de ne the ambient bag language by generalizing the constructs of the relational language of Brea...
Quality of Service (QoS) guarantees for delay sensitive networked multimedia applications, such as teleoperation, must be application-to-application. We describe a set of services...
Abstract. The automatic detection of shared content in written documents –which includes text reuse and its unacknowledged commitment, plagiarism– has become an important probl...
Schema mapping composition is a fundamental operation in schema management and data exchange. The mapping composition problem has been extensively studied for a number of mapping ...
Aspect-oriented programming (AOP) eases the development of profilers, debuggers, and reverse engineering tools. Such tools frequently rely on calling context information. However,...