Improving the Robustness of 'Online Agglomerative Clustering Method' Based on Kernel-Induce Distance Measures

  • Authors:
  • Daoqiang Zhang;Songcan Chen;Keren Tan

  • Affiliations:
  • Aff1 Aff2;Aff1 Aff2;Department of Computer Science and Engineering, Nanjing University of Aeronautics and Astronautics, Nanjing, PR China 210016

  • Venue:
  • Neural Processing Letters
  • Year:
  • 2005

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Abstract

Recently, an online agglomerative clustering method called AddC (I. D. Guedalia et al. Neural Comput. {\bf 11} (1999), 521--540) was proposed for nonstationary data clustering. Although AddC possesses many good attributes, a vital problem of that method is its sensitivity to noises, which limits its use in real-word applications. In this paper, based on \hbox{kernel-induced} distance measures, a robust online clustering (ROC) algorithm is proposed to remedy the problem of AddC. Experimental results on artificial and benchmark data sets show that ROC has better clustering performances than AddC, while still inheriting advantages such as clustering data in a single pass and without knowing the exact number of clusters beforehand.