A continuous-time approach to the oblique Procrustes problem

Trendafilov, Nickolay T. (1999). A continuous-time approach to the oblique Procrustes problem. Behaviormetrika, 26(2) pp. 167–181.

DOI: https://doi.org/10.2333/bhmk.26.167

Abstract

In the paper proposed we will make use of the gradient flow approach to consider a generalization of the well-known oblique Procrustes rotation problem, involving oblique simple structure rotation of both the core and component matrices resulting from three-mode factor analysis. The standard oblique Procrustes rotations to specified factor-structure and factor-pattern follow as special cases. The approach adopted leads to globally convergent algorithm and includes solving of initial value problem for certain matrix ordinary differential equation. Necessary conditions are established for the solution of the problem. The same approach is extended easily to the weighted oblique Procrustes rotation. Finally, some simulated numerical results are given and commented.

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