The success of supply chains depends on the match between the requirements and offerings that deliver the services. It can be ensured by separating requirements from the means of ...
Existing approaches for optimizing queries in data integration use decoupled strategies–attempting to optimize coverage and cost in two separate phases. Since sources tend to ha...
Queries in object-oriented datab;Lqcs are formulated against a class and retrieve instnnccls of the class sat,isfying a certain predicate on the att,riblltes of the class. The pre...
Abstract Appears in Proceedings of the Thirteenth Symposium on Principles of Database Systems, 1994 Ashish Gupta Yehoshua Sagivy Je rey D. Ullman Jennifer Widom Dept. of Computer S...
Ashish Gupta, Yehoshua Sagiv, Jeffrey D. Ullman, J...
In a distributed multi-agent based software environment, the traditional monolithic user model ceases to exist and is replaced by user model fragments, developed by the various so...