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CIKM
2005
Springer
14 years 2 months ago
Selectivity-based partitioning: a divide-and-union paradigm for effective query optimization
Modern query optimizers select an efficient join ordering for a physical execution plan based essentially on the average join selectivity factors among the referenced tables. In ...
Neoklis Polyzotis
DEXA
2005
Springer
160views Database» more  DEXA 2005»
14 years 2 months ago
Improved Sequential Pattern Mining Using an Extended Bitmap Representation
The main challenge of mining sequential patterns is the high processing cost of support counting for large amount of candidate patterns. For solving this problem, SPAM algorithm wa...
Chien-Liang Wu, Jia-Ling Koh, Pao-Ying An
FPGA
2005
ACM
80views FPGA» more  FPGA 2005»
14 years 2 months ago
Simultaneous timing-driven placement and duplication
Logic duplication is an effective method for improving circuit performance. In this paper we present an algorithm named SPD that performs simultaneous placement and duplication to...
Gang Chen, Jason Cong
GCC
2005
Springer
14 years 2 months ago
Query Optimization in Database Grid
DarGridⅡ is an implemented database gird system whose goal is to provide a semantic solution for integrating database resources on the web. Although many algorithms have been pro...
Xiaoqing Zheng, Huajun Chen, Zhaohui Wu, Yuxin Mao
GECCO
2005
Springer
178views Optimization» more  GECCO 2005»
14 years 2 months ago
A co-evolutionary hybrid algorithm for multi-objective optimization of gene regulatory network models
In this paper, the parameters of a genetic network for rice flowering time control have been estimated using a multiobjective genetic algorithm approach. We have modified the rece...
Praveen Koduru, Sanjoy Das, Stephen Welch, Judith ...