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VLDB
1991
ACM
134views Database» more  VLDB 1991»
13 years 8 months ago
Extending the Search Strategy in a Query Optimizer
In order to cope efficiently with simple or complex queries as well as different application requirements (e.g., ad-hoc versus repetitive queries), a query optimizer ought to supp...
Rosana S. G. Lanzelotte, Patrick Valduriez
EMO
2006
Springer
172views Optimization» more  EMO 2006»
13 years 9 months ago
Steady-State Selection and Efficient Covariance Matrix Update in the Multi-objective CMA-ES
The multi-objective covariance matrix adaptation evolution strategy (MO-CMA-ES) combines a mutation operator that adapts its search distribution to the underlying optimization prob...
Christian Igel, Thorsten Suttorp, Nikolaus Hansen
INFORMS
2007
150views more  INFORMS 2007»
13 years 5 months ago
SSPMO: A Scatter Tabu Search Procedure for Non-Linear Multiobjective Optimization
— We describe the development and testing of a metaheuristic procedure, based on the scatter search methodology, for the problem of approximating the efficient frontier of nonlin...
Julián Molina Luque, Manuel Laguna, Rafael ...
PIMRC
2010
IEEE
13 years 3 months ago
Euclidean distance decomposition to generate new 16-QAM and 64-QAM space-time trellis codes
In this paper, the generation of 16-QAM and 64-QAM space-time trellis codes (STTCs) for several transmit antennas is considered. The main problem with an exhaustive search is the i...
Pierre Viland, Gheorghe Zaharia, Jean-Franç...
SSDBM
2010
IEEE
133views Database» more  SSDBM 2010»
13 years 3 months ago
PrefIndex: An Efficient Supergraph Containment Search Technique
Graphs are prevailingly used in many applications to model complex data structures. In this paper, we study the problem of supergraph containment search. To avoid the NP-complete s...
Gaoping Zhu, Xuemin Lin, Wenjie Zhang, Wei Wang, H...