Authors
Citation
Bc. Mitchell et Ds. Burdick, SLOWLY CONVERGING PARAFAC SEQUENCES - SWAMPS AND 2-FACTOR DEGENERACIES, Journal of chemometrics, 8(2), 1994, pp. 155-168
Citations number
18
Categorie Soggetti
Chemistry Analytical","Statistic & Probability
Journal title
ISSN journal
08869383
Volume
8
Issue
2
Year of publication
1994
Pages
155 - 168
Database
ISI
SICI code
0886-9383(1994)8:2<155:SCPS-S>2.0.ZU;2-Y
Abstract
The alternating least squares PARAFAC algorithm is a useful tool for r
esolving trilinear three-way data arrays. Occasionally, however, it be
comes bogged down for many iterations in the vicinity of a poor qualit
y resolution before moving on to a much superior optimum fit. We inves
tigate this behavior in a simulation study and suggest ways of overcom
ing the obstacles it presents.