A robust iterative refinement clustering algorithm with smoothing search space
A robust iterative refinement clustering algorithm with smoothing search space
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具有平滑搜索空间的鲁棒迭代细化聚类算法
DOI:
10.1016/j.knosys.2010.01.012
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发表时间:
2010-07
影响因子:
8.8
通讯作者:
Zong, Yu
中科院分区:
文献类型:
--
作者:
Xu, Gu;ong;Li, Mingchu;Jiang, He;Zhang, Yanchun;Zong, Yu
Iterative refinement clustering algorithms are widely used in data mining area, but they are sensitive to the initialization. In the past decades, many modified initialization methods have been proposed to reduce the influence of initialization sensitivity problem. The essence of iterative refinement clustering algorithms is the local search method. The big numbers of the local minimum points which are embedded in the search space make the local search problem hard and sensitive to the initialization. The smaller number of local minimum points, the more robust of initialization for a local search algorithm is. In this paper, we propose a Top–Down Clustering algorithm with Smoothing Search Space (TDCS3) to reduce the influence of initialization. The main steps of TDCS3 are to: (1) dynamically reconstruct a series of smoothed search spaces into a hierarchical structure by ‘filling’ the local minimum points; (2) at the top level of the hierarchical structure, an existing iterative refinement clustering algorithm is run with random initialization to generate the clustering result; (3) eventually from the second level to the bottom level of the hierarchical structure, the same clustering algorithm is run with the initialization derived from the previous clustering result. Experiment results on 3 synthetic and 10 real world data sets have shown that TDCS3 has significant effects on finding better, robust clustering result and reducing the impact of initialization.
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DOI:
10.1145/321958.321975
发表时间:
1976-07
期刊:
Journal of the ACM (JACM)
影响因子:
--
作者:
S. Sahni;T. Gonzalez
通讯作者:
S. Sahni;T. Gonzalez
DOI:
10.1201/9781420090741.ch2
发表时间:
1974
期刊:
--
影响因子:
--
作者:
Julius T. Tou;Rafael Gonzalez
通讯作者:
Julius T. Tou;Rafael Gonzalez
DOI:
--
发表时间:
1998-07
期刊:
--
影响因子:
--
作者:
P. Bradley;U. Fayyad
通讯作者:
P. Bradley;U. Fayyad
DOI:
--
发表时间:
1996
期刊:
--
影响因子:
--
作者:
C. Merz
通讯作者:
C. Merz
DOI:
10.1109/ijcnn.2004.1379917
发表时间:
2004-07
期刊:
2004 IEEE International Joint Conference on Neural Networks (IEEE Cat. No.04CH37541)
影响因子:
--
作者:
Ji He;Man Lan;C. Tan;S. Sung;H. Low
通讯作者:
Ji He;Man Lan;C. Tan;S. Sung;H. Low