This paper discusses navigation issues in large-scale databases and proposes hypermap visualizations as effective navigational views. We describe the ZTree, a technique that allow...
Development has begun on a semantic evaluation (SemEval) methodology and infrastructure for the ARPA Spoken Language Program. SemEval is an attempt to define a task-independent te...
We investigate the space requirements for summaries needed for maintaining exact answers to aggregate queries over histories of relational databases. We show that, in general, a su...
Abstract. Database systems (DBSs) can play an essential role in facilitating the query and cache management in context-aware mobile information systems (CAMIS). Two of the fundamen...
: In order to reduce transmission costs and response time, mobile clients typically cache data locally. But, avoiding the usage of outdated data and maintaining the consistency of ...