815 search results - page 131 / 163 » Ontology-based integration for relational databases |
ICDE
2010
IEEE
15 years 4 months ago
2010
IEEE
— Massive data analysis on large clusters presents new opportunities and challenges for query optimization. Data partitioning is crucial to performance in this environment. Howev...
ITCC
2005
IEEE
15 years 3 months ago
2005
IEEE
Nowadays many data grid applications need to manage and process a huge amount of data distributed across multiple grid nodes and stored into heterogeneous databases. Grids encoura...
104
click to vote
GIS
2009
ACM
15 years 2 months ago
2009
ACM
Data warehouses and On-Line Analytical Processing (OLAP) provide an analysis framework supporting the decision making process. In many application domains, complex analysis tasks ...
COLT
2000
Springer
15 years 2 months ago
2000
Springer
We study model selection strategies based on penalized empirical loss minimization. We point out a tight relationship between error estimation and data-based complexity penalizatio...
VLDB
1999
ACM
15 years 1 months ago
1999
ACM
We present an optimization method and algorithm designed for three objectives: physical data independence, semantic optimization, and generalized tableau minimization. The method ...