Article citationsMore>>

Gantz, J., Reinsel, D., Chute, C., Schlichting, W., McArthur, J., Minton, S., Xheneti, I., Toncheva, A. and Manfrediz, A. (2007) The Expanding Digital Universe: A Forecast of Worldwide Information Growth through 2010. Technical Report, 12, 634-638.

has been cited by the following article:

• TITLE: Particle Swarm Optimized Optimal Threshold Value Selection for Clustering based on Correlation Fractal Dimension

  AUTHORS: Anuradha Yarlagadda, J. V. R. Murthy, M. H. M. Krishna Prasad

  KEYWORDS: Correlation Fractal Dimension, Fractal Dimension, Clustering, Particle Swarm Optimization, Data Stream Clustering

  JOURNAL NAME: Applied Mathematics, Vol.5 No.10, June 17, 2014

  ABSTRACT: The work on the paper is focused on the use of Fractal Dimension in clustering for evolving data streams. Recently Anuradha et al. proposed a new approach based on Relative Change in Fractal Dimension (RCFD) and damped window model for clustering evolving data streams. Through observations on the aforementioned referred paper, this paper reveals that the formation of quality cluster is heavily predominant on the suitable selection of threshold value. In the above-mentionedpaper Anuradha et al. have used a heuristic approach for fixing the threshold value. Although the outcome of the approach is acceptable, however, the approach is purely based on random selection and has no basis to claim the acceptability in general. In this paper a novel method is proposed to optimally compute threshold value using a population based randomized approach known as particle swarm optimization (PSO). Simulations are done on two huge data sets KDD Cup 1999 data set and the Forest Covertype data set and the results of the cluster quality are compared with the fixed approach. The comparison reveals that the chosen value of threshold by Anuradha et al., is robust and can be used with confidence.