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DEXA
2007
Springer
154views Database» more  DEXA 2007»
16 years 20 days ago
Performance Oriented Schema Matching
Abstract. Semantic matching of schemas in heterogeneous data sharing systems is time consuming and error prone. Existing mapping tools employ semi-automatic techniques for mapping ...
Khalid Saleem, Zohra Bellahsene, Ela Hunt
FOCS
2010
IEEE
15 years 4 months ago
Stability Yields a PTAS for k-Median and k-Means Clustering
We consider k-median clustering in finite metric spaces and k-means clustering in Euclidean spaces, in the setting where k is part of the input (not a constant). For the k-means pr...
Pranjal Awasthi, Avrim Blum, Or Sheffet
IPPS
2003
IEEE
15 years 11 months ago
Parallel Heterogeneous Genetic Algorithms for Continuous Optimization
In this paper we address the physical parallelization of a very efficient genetic algorithm (GA) known as gradual distributed real-coded GA (GD-RCGA). This search model naturally...
Enrique Alba, Francisco Luna, Antonio J. Nebro
CLEF
2007
Springer
15 years 10 months ago
Experiments in Classification Clustering and Thesaurus Expansion for Domain Specific Cross-Language Retrieval
In this paper we will describe Berkeley's approach to the Domain Specific (DS) track for CLEF 2007. This year we are using forms of the Entry Vocabulary Indexes and Thesaurus...
Ray R. Larson
KI
2001
Springer
15 years 11 months ago
Theory and Practice of Time-Space Trade-Offs in Memory Limited Search
Having to cope with memory limitations is an ubiquitous issue in heuristic search. We present theoretical and practical results on new variants for exploring state-space with respe...
Stefan Edelkamp, Ulrich Meyer