Tendency Curves for Visual Clustering Assessment

Yingkang Hu (1949-2016), Richard Hathaway

Research output: Contribution to book or proceedingChapter

Abstract

We improve the visual assessment of tendency (VAT) technique, which, developed by J.C. Bezdek, R.J. Hathaway and J.M. Huband, uses a visual approach to find the number of clusters in data. Instead of using square gray level images of dissimilarity matrices as in VAT, we further process the matrices and produce the tendency curves. Possible cluster structure will be shown as peak-valley patterns on the curves, which can be caught not only by human eyes but also by the computer. Our numerical experiments showed that the computer can catch cluster structures from the tendency curves even in cases where the visual outputs of VAT are virtually useless.
Original languageAmerican English
Title of host publicationProceedings of the WSEAS International Conference on Applied Computing Conference
StatePublished - May 26 2008

Disciplines

  • Mathematics

Keywords

  • VAT
  • Visual assessment of tendency

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