Dimensionality Reduction for Evolving RBF Networks with Particle Swarms

  • Junying Chen
  • Zheng Qin
Part of the Lecture Notes in Computer Science book series (LNCS, volume 3971)


Dimensionality reduction including both feature selection and feature extraction techniques are useful for improving the performance of neural networks. In this paper, particle swarm optimization (PSO) algorithm was proposed for simultaneous feature extraction and feature selection. First PSO was used to simultaneous feature extraction and selection in conjunction with knearest- neighbor (k-NN) for individual fitness evaluation. With the derived feature set, PSO was then used to evolve RBF networks dynamically. Experimental results on four datasets show that RBF networks evolved with the derived feature set by our proposed algorithm have more simple architecture and stronger generalization ability with the similar classification performance when compared with the networks evolved with the full feature set.


Particle Swarm Optimization Feature Selection Dimensionality Reduction Particle Swarm Optimization Algorithm Feature Subset 
These keywords were added by machine and not by the authors. This process is experimental and the keywords may be updated as the learning algorithm improves.


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© Springer-Verlag Berlin Heidelberg 2006

Authors and Affiliations

  • Junying Chen
    • 1
  • Zheng Qin
    • 1
    • 2
  1. 1.Department of Computer ScienceXian JiaoTong UniversityXianP.R. China
  2. 2.School of SoftwareTsinghua UniversityBeijingP.R. China

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