Isometric sliced inverse regression for nonlinear manifold learning

  • Authors:
  • Wei-Ting Yao;Han-Ming Wu

  • Affiliations:
  • Department of Mathematics, Tamkang University, New Taipei City, Taiwan, R.O.C. 25137;Department of Mathematics, Tamkang University, New Taipei City, Taiwan, R.O.C. 25137

  • Venue:
  • Statistics and Computing
  • Year:
  • 2013

Quantified Score

Hi-index 0.00

Visualization

Abstract

Sliced inverse regression (SIR) was developed to find effective linear dimension-reduction directions for exploring the intrinsic structure of the high-dimensional data. In this study, we present isometric SIR for nonlinear dimension reduction, which is a hybrid of the SIR method using the geodesic distance approximation. First, the proposed method computes the isometric distance between data points; the resulting distance matrix is then sliced according to K-means clustering results, and the classical SIR algorithm is applied. We show that the isometric SIR (ISOSIR) can reveal the geometric structure of a nonlinear manifold dataset (e.g., the Swiss roll). We report and discuss this novel method in comparison to several existing dimension-reduction techniques for data visualization and classification problems. The results show that ISOSIR is a promising nonlinear feature extractor for classification applications.