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ESWS
2011
Springer
14 years 2 months ago
Optimizing Query Shortcuts in RDF Databases
The emergence of the Semantic Web has led to the creation of large semantic knowledge bases, often in the form of RDF databases. Improving the performance of RDF databases necessit...
Vicky Dritsou, Panos Constantopoulos, Antonios Del...
CONCURRENCY
2002
89views more  CONCURRENCY 2002»
14 years 11 months ago
MyPYTHIA: a recommendation portal for scientific software and services
In this paper, we outline the design of a recommendation system (MyPYTHIA) implemented as a web portal. MyPYTHIA's design objectives include evaluating the quality and perfor...
Elias N. Houstis, Ann Christine Catlin, Nitesh Dha...
BMCBI
2006
86views more  BMCBI 2006»
14 years 11 months ago
The impact of sample imbalance on identifying differentially expressed genes
Background: Recently several statistical methods have been proposed to identify genes with differential expression between two conditions. However, very few studies consider the p...
Kun Yang, Jianzhong Li, Hong Gao
PVM
2009
Springer
15 years 5 months ago
Optimizing MPI Runtime Parameter Settings by Using Machine Learning
Abstract. Manually tuning MPI runtime parameters is a practice commonly employed to optimise MPI application performance on a specific architecture. However, the best setting for ...
Simone Pellegrini, Jie Wang, Thomas Fahringer, Han...
IPM
2007
101views more  IPM 2007»
14 years 11 months ago
Decisions in thesaurus construction and use
A thesaurus and an ontology provide a set of structured terms, phrases, and metadata, often in a hierarchical arrangement, that may be used to index, search, and mine documents. W...
Robert M. Losee