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» Querying Multidimensional Databases
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SIGMOD
2008
ACM
126views Database» more  SIGMOD 2008»
16 years 7 months ago
On efficient top-k query processing in highly distributed environments
Lately the advances in centralized database management systems show a trend towards supporting rank-aware query operators, like top-k, that enable users to retrieve only the most ...
Akrivi Vlachou, Christos Doulkeridis, Kjetil N&osl...
SIGMOD
2007
ACM
121views Database» more  SIGMOD 2007»
16 years 7 months ago
EaseDB: a cache-oblivious in-memory query processor
We propose to demonstrate EaseDB, the first cache-oblivious query processor for in-memory relational query processing. The cacheoblivious notion from the theory community refers t...
Bingsheng He, Yinan Li, Qiong Luo, Dongqing Yang
IDEAS
2005
IEEE
93views Database» more  IDEAS 2005»
16 years 11 days ago
Semantic Query Transformation Using Ontologies
Traditional approaches to query processing aim at rewriting a given query into another more efficient one that uses less time and/or resources during the execution. There by, the...
Chokri Ben Necib, Johann Christoph Freytag
WEBDB
2000
Springer
120views Database» more  WEBDB 2000»
15 years 10 months ago
Quilt: An XML Query Language for Heterogeneous Data Sources
The World Wide Web promises to transform human society by making virtually all types of information instantly available everywhere. Two prerequisites for this promise to be realiz...
Donald D. Chamberlin, Jonathan Robie, Daniela Flor...
IS
2007
15 years 6 months ago
Evaluation of probabilistic queries over imprecise data in constantly-evolving environments
Sensors are often employed to monitor continuously changing entities like locations of moving objects and temperature. The sensor readings are reported to a database system, and a...
Reynold Cheng, Dmitri V. Kalashnikov, Sunil Prabha...