2191 search results - page 80 / 439 » Query Processing in the ROL system |
CIKM
2011
Springer
13 years 9 months ago
2011
Springer
A fundamental problem related to RDF query processing is selectivity estimation, which is crucial to query optimization for determining a join order of RDF triple patterns. In thi...
120
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EDBT
2006
ACM
15 years 10 months ago
2006
ACM
Abstract. Peer Data Management Systems (PDMS) have recently attracted attention by the database community. One of the main challenges of this paradigm is the development and evalua...
146
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SIGMOD
2007
ACM
15 years 10 months ago
2007
ACM
An important problem for many location-based applications is the continuous evaluation of proximity relations among moving objects. These relations express whether a given set of ...
CAISE
2003
Springer
15 years 3 months ago
2003
Springer
This paper describes the design and implementation of an embedded-type XML storage and retrieval system which is built on top of relational databases. The proposed system stores ea...
EDBT
2010
ACM
15 years 4 months ago
2010
ACM
Schemas, and more generally metadata specifying structural and semantic constraints, are invaluable in data management. They facilitate conceptual design and enable checking of da...