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» Optimizing complex queries with multiple relation instances
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ICWN
2008
13 years 9 months ago
Progressive Content-Sensitive Data Retrieval in Sensor Networks
: Problem statement: For a sensor network comprising autonomous and self-organizing data sources, efficient similarity-based search for semantic-rich resources (such as video data)...
Bo Yang, Mareboyana Manohar, Shaoying Kou
CAISE
2003
Springer
14 years 27 days ago
Introducing Custom Language Extensions to SQL: 1999
Abstract. Even though SQL has become widely accepted as a language for implementing relational database schemas and querying data, there are cases where s experience the need for n...
Jernej Kovse, Wolfgang Mahnke
BMCBI
2008
140views more  BMCBI 2008»
13 years 7 months ago
GORouter: an RDF model for providing semantic query and inference services for Gene Ontology and its associations
Background: The most renowned biological ontology, Gene Ontology (GO) is widely used for annotations of genes and gene products of different organisms. However, there are shortcom...
Qingwei Xu, Yixiang Shi, Qiang Lu, Guo-qing Zhang,...
FOCS
2009
IEEE
14 years 2 months ago
Symmetry and Approximability of Submodular Maximization Problems
Abstract— A number of recent results on optimization problems involving submodular functions have made use of the ”multilinear relaxation” of the problem [3], [8], [24], [14]...
Jan Vondrák
WSDM
2009
ACM
104views Data Mining» more  WSDM 2009»
14 years 2 months ago
Top-k aggregation using intersections of ranked inputs
There has been considerable past work on efficiently computing top k objects by aggregating information from multiple ranked lists of these objects. An important instance of this...
Ravi Kumar, Kunal Punera, Torsten Suel, Sergei Vas...