Incorporating probabilities into the semantics of incomplete databases has posed many challenges, forcing systems to sacrifice modeling power, scalability, or treatment of relatio...
: This paper presents database programming language constructs that. can be used to realize a variety of different semantics for rule application in active database syst.ems. The p...
The problem of query containment is fundamental to many aspects of database systems, including query optimization, determining independence of queries from updates, and rewriting ...
Publish/subscribe is emerging as an appropriate communication paradigm for large-scale, widely-distributed systems. In this paper, we describe our work on integrating active datab...
Customized marketing, so called 1-to-1 marketing, is often viewed as the panacea of e-commerce. User profiles, such as click streams logging every site the user accesses, are expl...