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124
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ICDT
2003
ACM
91views Database» more  ICDT 2003»
15 years 7 months ago
Reformulation of XML Queries and Constraints
We state and solve the query reformulation problem for XML publishing in a general setting that allows mixed (XML and relational) storage for the proprietary data and exploits redu...
Alin Deutsch, Val Tannen
COOPIS
2002
IEEE
15 years 7 months ago
On Real-Time Top k Querying for Mobile Services
Mobile services offering multi-feature query capabilities must meet tough response time requirements to gain customer acceptance. The top-k query model is a popular candidate to im...
Wolf-Tilo Balke, Ulrich Güntzer, Werner Kie&s...
ICMCS
2000
IEEE
137views Multimedia» more  ICMCS 2000»
15 years 7 months ago
Automatic Query Generation for Content-Based Image Retrieval
We describe a subsystem of a content-based image retrieval (CBIR) environment that supports a user in the definition of image similarity. Out of a single image or a set of query i...
Christian Breiteneder, Horst Eidenberger
162
Voted
COCO
2000
Springer
161views Algorithms» more  COCO 2000»
15 years 6 months ago
Characterization of Non-Deterministic Quantum Query and Quantum Communication Complexity
It is known that the classical and quantum query complexities of a total Boolean function f are polynomially related to the degree of its representing polynomial, but the optimal ...
Ronald de Wolf
127
Voted
COOPIS
2004
IEEE
15 years 6 months ago
Refresco: Improving Query Performance Through Freshness Control in a Database Cluster
Abstract. We consider the use of a cluster system for managing autonomous databases. In order to improve the performance of read-only queries, we strive to exploit user requirement...
Cécile Le Pape, Stéphane Ganç...