Sciweavers

654 search results - page 66 / 131
» Complexity of Answering Queries Using Materialized Views
Sort
View
ICDE
2008
IEEE
182views Database» more  ICDE 2008»
16 years 4 months ago
SpaceTwist: Managing the Trade-Offs Among Location Privacy, Query Performance, and Query Accuracy in Mobile Services
In a mobile service scenario, users query a server for nearby points of interest but they may not want to disclose their locations to the service. Intuitively, location privacy may...
Man Lung Yiu, Christian S. Jensen, Xuegang Huang, ...
DKE
2006
94views more  DKE 2006»
15 years 3 months ago
Extending the data warehouse for service provisioning data
The last few years, there has been an extensive body of literature in data warehousing applications that primarily focuses on basket-type (transactional) data, common in retail in...
Yannis Kotidis
VISUALIZATION
2005
IEEE
15 years 8 months ago
Query-Driven Visualization of Large Data Sets
We present a practical and general-purpose approach to large and complex visual data analysis where visualization processing, rendering and subsequent human interpretation is cons...
Kurt Stockinger, John Shalf, Kesheng Wu, E. Wes Be...
ICDT
2007
ACM
107views Database» more  ICDT 2007»
15 years 9 months ago
Some Algorithmic Improvements for the Containment Problem of Conjunctive Queries with Negation
Query containment is a fundamental problem of databases. Given two queries q1 and q2, it asks whether the set of answers to q1 is included in the set of answers to q2 for any datab...
Michel Leclère, Marie-Laure Mugnier
ICDE
2001
IEEE
206views Database» more  ICDE 2001»
16 years 4 months ago
Cache-Aware Query Routing in a Cluster of Databases
We investigate query routing techniques in a cluster of databases for a query-dominant environment. The objective is to decrease query response time. Each component of the cluster...
Uwe Röhm, Klemens Böhm, Hans-Jörg S...