The notion of certain answers arises when one queries incompletely specified databases, e.g., in data integration and exchange scenarios, or databases with missing information. W...
Comprehensive data analysis has become indispensable in a variety of environments. Standard OLAP (On-Line Analytical Processing) systems, designed for satisfying the reporting need...
This paper proposes an efficient, decentralized algorithm for determining the topological relationship between two regions monitored by a geosensor network. Many centralized algo...
Matt Duckham, Myeong Hun Jeong, Sanjiang Li, Joche...
The ACTS FlowThru project aims to build a management system which supports the flow of management information across organisational and technological domains by reusing components ...
Patrick Hellemans, Cliff Redmond, Koen Daenen, Dav...
Identity management has arisen as a major and urgent challenge for internet-based communications and information services. Internet services involve complex networks of relationshi...