Data driven bandwidth for medoid shift algorithm

  • Authors:
  • Syed Zulqarnain Ahmad Gilani;Naveed Iqbal Rao

  • Affiliations:
  • College of Telecommunication Engineering, National University of Sciences and Technology, Islamabad, Pakistan;College of Telecommunication Engineering, National University of Sciences and Technology, Islamabad, Pakistan

  • Venue:
  • ICCSA'11 Proceedings of the 2011 international conference on Computational science and its applications - Volume Part II
  • Year:
  • 2011

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Abstract

Adaptive data driven bandwidth for medoidshift algorithm has been proposed in this work. The proposed method has made it possible to perform clustering on a variety of high resolution statistically different images. Experiments are performed on natural images as well as daily life images. The images have been chosen such that a comparison analysis between fixed sample point estimator k and adaptive k can be carried out in detail. The results show that a fixed value of k=10 is good for statistically compact images but gives undesirable results in dispersed images. Data driven bandwidth is proposed for each data point/ pixel as well as the complete data set/ image. Experimental results have shown our algorithm to be robust. Performance is evaluated on the basis of root mean square error for the quality of clusters.