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» Query Optimization in Database Grid
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CCGRID
2005
IEEE
14 years 2 months ago
Secret sequence comparison on public grid computing resources
Once a new gene has been sequenced, it must be verified whether or not it is similar to previously sequenced genes. In many cases, the organization that sequenced a potentially n...
Ken-ichi Kurata, Hiroshi Nakamura, Vincent Breton
ESA
2010
Springer
161views Algorithms» more  ESA 2010»
13 years 10 months ago
Top-k Ranked Document Search in General Text Databases
Text search engines return a set of k documents ranked by similarity to a query. Typically, documents and queries are drawn from natural language text, which can readily be partiti...
J. Shane Culpepper, Gonzalo Navarro, Simon J. Pugl...
VLDB
2001
ACM
123views Database» more  VLDB 2001»
14 years 1 months ago
User-Optimizer Communication using Abstract Plans in Sybase ASE
imizer Communication using Abstract Plans in Sybase ASE Query optimizers are error prone, due to both their nature and the increased search space that modern query processing requ...
Mihnea Andrei, Patrick Valduriez
DASFAA
2006
IEEE
168views Database» more  DASFAA 2006»
14 years 3 months ago
PMJoin: Optimizing Distributed Multi-way Stream Joins by Stream Partitioning
Abstract. In emerging data stream applications, data sources are typically distributed. Evaluating multi-join queries over streams from different sources may incur large communica...
Yongluan Zhou, Ying Yan, Feng Yu, Aoying Zhou
CORR
2007
Springer
77views Education» more  CORR 2007»
13 years 9 months ago
Query Evaluation and Optimization in the Semantic Web
We address the problem of answering Web ontology queries efficiently. An ontology is formalized as a Deductive Ontology Base (DOB), a deductive database that comprises the ontology...
Edna Ruckhaus, Eduardo Ruiz, Maria-Esther Vidal