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» Managing Expressions as Data in Relational Database Systems
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WWW
2004
ACM
16 years 7 months ago
Index structures and algorithms for querying distributed RDF repositories
A technical infrastructure for storing, querying and managing RDF data is a key element in the current semantic web development. Systems like Jena, Sesame or the ICS-FORTH RDF Sui...
Heiner Stuckenschmidt, Richard Vdovjak, Geert-Jan ...
DNIS
2007
Springer
114views Database» more  DNIS 2007»
16 years 28 days ago
Improving the Performance of Read-Only Transactions Through Speculation
A read-only transaction (ROT) does not modify any data. The main issues regarding processing ROTs are correctness, data currency and performance. Two-phase Locking (2PL) protocol i...
Thirumalaisamy Ragunathan, P. Krishna Reddy
ICPADS
2006
IEEE
16 years 23 days ago
Policy-Directed Data Movement in Grids
One of the guiding principles of the Grid is local (site) autonomy. Resource owners maintain control over their resources even when those resources are part of a larger Grid. In o...
Jun Feng, Lingling Cui, Glenn S. Wasson, Marty Hum...
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ACMSE
2005
ACM
16 years 9 days ago
On developing a simple in-house digital library archive
Digital libraries (DLs) have become a major focus of information technology resources for organizations from academia, to the US Department of Defense to the archeological efforts...
Eric L. Brown, Luis G. Velazco, G. Kirksey, S. Ram...
PKDD
2005
Springer
92views Data Mining» more  PKDD 2005»
16 years 7 days ago
Mining Model Trees from Spatial Data
Mining regression models from spatial data is a fundamental task in Spatial Data Mining. We propose a method, namely Mrs-SMOTI, that takes advantage from a tight-integration with s...
Donato Malerba, Michelangelo Ceci, Annalisa Appice