A MODIFICATION OF THE SINDCLUS ALGORITHM FOR FITTING THE ADCLUS AND INDCLUS MODELS

Authors
KIERS HAL
Citation
Hal. Kiers, A MODIFICATION OF THE SINDCLUS ALGORITHM FOR FITTING THE ADCLUS AND INDCLUS MODELS, Journal of classification, 14(2), 1997, pp. 297-310
Citations number
9
Categorie Soggetti
Social Sciences, Mathematical Methods","Mathematical, Methods, Social Sciences","Mathematics, Miscellaneous
Journal title
Journal of classification → ACNP
ISSN journal
01764268
Volume
14
Issue
2
Year of publication
1997
Pages
297 - 310
Database
ISI
SICI code
0176-4268(1997)14:2<297:AMOTSA>2.0.ZU;2-J
Abstract
The SINDCLUS algorithm for fitting the ADCLUS and INDCLUS models deals with a parameter matrix that occurs twice in the model by considering the two occurrences as independent parameter matrices. This procedure has been justified empirically by the observation that upon convergen ce of the algorithm to the global optimum, the two independently treat ed parameter matrices turn out to be equal. In the present paper, resu lts are presented that contradict this finding, and a modification of SINDCLUS is presented which obviates the need for independently treati ng two occurrences of the same parameter matrix.