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1 results

  • Analysis of Asymmetry by a Slide-Vector

  • Berrie Zielman, Willem J. Heiser
  • Journal:
    Psychometrika / Volume 58 / Issue 1 / March 1993
    Published online by Cambridge University Press:
    01 January 2025, pp. 101-114

  • The slide-vector scaling model attempts to account for the asymmetry of a proximity matrix by a uniform shift in a fixed direction imposed on a symmetric Euclidean representation of the scaled objects. Although no method for fitting the slide-vector model seems available in the literature, the model can be viewed as a constrained version of the unfolding model, which does suggest one possible algorithm. The slide-vector model is generalized to handle three-way data, and two examples from market structure analysis are presented.