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Psychometrika

, Volume 58, Issue 2, pp 339–355 | Cite as

Constrained DEDICOM

  • Henk A. L. Kiers
  • Yoshio Takane
Article

Abstract

The DEDICOM method for the analysis of asymmetric data tables gives representations that are identified only up to a nonsingular transformation. To identify solutions it is proposed to impose subspace constraints on the stimulus coefficients. Most attention is paid to the case where different subspace constraints are imposed on different dimensions. The procedures are discussed both for the case where the complete table is fitted, and for cases where only offdiagonal elements are fitted. The case where the data table is skew-symmetric is treated separately as well.

Key words

asymmetric relationships alternating least squares 

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Copyright information

© The Psychometric Society 1993

Authors and Affiliations

  • Henk A. L. Kiers
    • 1
  • Yoshio Takane
    • 2
  1. 1.University of GroningenThe Netherlands
  2. 2.McGill UniversityCanada

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