162 search results - page 26 / 33 » SPARQL query rewriting for implementing data integration ove... |
VLDB
2007
ACM
14 years 8 months ago
2007
ACM
This paper presents two extensions for XQuery. The first extension allows the definition and processing of different kinds of windows over an input sequence; i.e., tumbling, slidi...
EDBT
2004
ACM
14 years 8 months ago
2004
ACM
OGSA-DQP is a distributed query processor exposed to users as an Open Grid Services Architecture (OGSA)-compliant Grid service. This service supports the compilation and evaluation...
EDBTW
2010
Springer
13 years 12 months ago
2010
Springer
Successfully structuring information in databases, OLAP cubes, and XML is a crucial element in managing data nowadays. However this process brought new challenges to usability. It...
ICDE
2003
IEEE
14 years 10 months ago
2003
IEEE
This paper presents SPEX, a streamed and progressive evaluation of regular path expressions with XPath-like qualifiers against XML streams. SPEX proceeds as follows. An expression...
BMCBI
2006
13 years 8 months ago
2006
Background: Non-negative matrix factorisation (NMF), a machine learning algorithm, has been applied to the analysis of microarray data. A key feature of NMF is the ability to iden...