Sciweavers

1782 search results - page 257 / 357
» Processing Queries over Distributed XML Databases
Sort
View
ICDE
2005
IEEE
101views Database» more  ICDE 2005»
14 years 10 months ago
GPIVOT: Efficient Incremental Maintenance of Complex ROLAP Views
Data warehousing and on-line analytical processing (OLAP) are essential for decision support applications. Common OLAP operations include for example drill down, roll up, pivot an...
Songting Chen, Elke A. Rundensteiner
VLDB
2004
ACM
108views Database» more  VLDB 2004»
14 years 2 months ago
QStream: Deterministic Querying of Data Streams
Current developments in processing data streams are based on the best-effort principle and therefore not adequate for many application areas. When sensor data is gathered by inte...
Sven Schmidt, Henrike Berthold, Wolfgang Lehner
ICDE
2006
IEEE
163views Database» more  ICDE 2006»
14 years 10 months ago
A Sampling-Based Approach to Optimizing Top-k Queries in Sensor Networks
Wireless sensor networks generate a vast amount of data. This data, however, must be sparingly extracted to conserve energy, usually the most precious resource in battery-powered ...
Adam Silberstein, Carla Schlatter Ellis, Jun Yang ...
ICDE
2000
IEEE
168views Database» more  ICDE 2000»
14 years 10 months ago
PAC Nearest Neighbor Queries: Approximate and Controlled Search in High-Dimensional and Metric Spaces
In high-dimensional and complex metric spaces, determining the nearest neighbor (NN) of a query object ? can be a very expensive task, because of the poor partitioning operated by...
Paolo Ciaccia, Marco Patella
CIKM
2005
Springer
14 years 2 months ago
Towards automatic association of relevant unstructured content with structured query results
Faced with growing knowledge management needs, enterprises are increasingly realizing the importance of seamlessly integrating critical business information distributed across bot...
Prasan Roy, Mukesh K. Mohania, Bhuvan Bamba, Shree...