ERIC Number: EJ796574
Record Type: Journal
Publication Date: 2008-Jun
Reference Count: 0
The Assumption of Proportional Components when Candecomp Is Applied to Symmetric Matrices in the Context of INDSCAL
Dosse, Mohammed Bennani; Berge, Jos M. F.
Psychometrika, v73 n2 p303-307 Jun 2008
The use of Candecomp to fit scalar products in the context of INDSCAL is based on the assumption that the symmetry of the data matrices involved causes the component matrices to be equal when Candecomp converges. Ten Berge and Kiers gave examples where this assumption is violated for Gramian data matrices. These examples are believed to be local minima. It is now shown that, in the single-component case, the assumption can only be violated at saddle points. Chances of Candecomp converging to a saddle point are small but still nonzero.
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Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Authoring Institution: N/A