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GRAPHICSINTERFACE
2000
15 years 8 months ago
Navigating Complex Information with the ZTree
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...
Lyn Bartram, Axel Uhl, Tom Calvert
NAACL
1994
15 years 8 months ago
Semantic Evaluation for Spoken-Language Systems
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...
Robert C. Moore
AMW
2009
15 years 8 months ago
Data Expiration and Aggregate Queries
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...
David Toman
BNCOD
2009
97views Database» more  BNCOD 2009»
15 years 8 months ago
An XML-Based Model for Supporting Context-Aware Query and Cache Management
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...
Essam Mansour, Hagen Höpfner
MMS
2006
15 years 6 months ago
Update Relevance under the Multiset Semantics of RDBMS
: 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 But, avoiding the usage of outdated data and maintaining the consistency of ...
Hagen Höpfner