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ER
2010
Springer
129views Database» more  ER 2010»
13 years 8 months ago
SQOWL: Type Inference in an RDBMS
In this paper we describe a method to perform type inference over data stored in an RDBMS, where rules over the data are specified using OWLDL. Since OWL-DL is an implementation of...
Peter McBrien, Nikos Rizopoulos, Andrew Smith
DATESO
2010
148views Database» more  DATESO 2010»
13 years 8 months ago
Using Spectral Clustering for Finding Students' Patterns of Behavior in Social Networks
Abstract. The high dimensionality of the data generated by social networks has been a big challenge for researchers. In order to solve the problems associated with this phenomenon,...
Gamila Obadi, Pavla Drázdilová, Jan ...
VLDB
1993
ACM
98views Database» more  VLDB 1993»
14 years 2 months ago
Memory-Adaptive External Sorting
- In real-time and goal-orienteddatabasesystems, the amountof memory assignedto queriesthat sort or join large relations may fluctuate due to contention from other higherpriority t...
HweeHwa Pang, Michael J. Carey, Miron Livny
ICDE
2009
IEEE
160views Database» more  ICDE 2009»
13 years 8 months ago
Perm: Processing Provenance and Data on the Same Data Model through Query Rewriting
Data provenance is information that describes how a given data item was produced. The provenance includes source and intermediate data as well as the transformations involved in pr...
Boris Glavic, Gustavo Alonso
CCGRID
2003
IEEE
14 years 4 months ago
Leveraging Non-Uniform Resources for Parallel Query Processing
Clusters are now composed of non-uniform nodes with different CPUs, disks or network cards so that customers can adapt the cluster configuration to the changing technologies and t...
Tobias Mayr, Philippe Bonnet, Johannes Gehrke, Pra...