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...
Abstract. Extensible Dependency Grammar (XDG) is a graph description language whose formulas can be solved by constraint programming. XDG is designed so as to yield a declarative a...
Temporal reasoning and temporal query languages present di cult research problems of theoretical interest and practical importance. One problem is the chasm between point-based te...
UML is the de-facto standard language for Object-Oriented analysis and design of information systems. Persistent storage and extraction of data in such systems is supported by dat...
The Boolean semantics of SQL queries cannot adequately capture the "fuzzy" preferences and "soft" criteria required in non-traditional data retrieval applicati...
Chengkai Li, Min Wang, Lipyeow Lim, Haixun Wang, K...