| Avoiding degeneracy in metric unfolding by penalizing the intercept. | |
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MedLine Citation:
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PMID: 17067419 Owner: NLM Status: MEDLINE |
Abstract/OtherAbstract:
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It has long been thought that degeneracy in unfolding only concerned non-metric unfolding. Recently, Busing, Groenen, and Heiser have established that degeneracy occurs for all transformations that include estimation of an intercept and a slope. Consequently, degeneracy also plagues metric unfolding, since one member of the metric transformation family, the interval transformation, includes estimation of both an intercept and a slope. In this paper, a simple solution is proposed to the degeneracy problem for metric unfolding by penalizing for an undesirable intercept. An application of this approach will illustrate its potential. |
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Authors:
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Frank M T A Busing |
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Publication Detail:
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Type: Journal Article |
Journal Detail:
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Title: The British journal of mathematical and statistical psychology Volume: 59 ISSN: 0007-1102 ISO Abbreviation: Br J Math Stat Psychol Publication Date: 2006 Nov |
Date Detail:
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Created Date: 2006-10-27 Completed Date: 2007-02-06 Revised Date: 2009-11-11 |
Medline Journal Info:
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Nlm Unique ID: 0004047 Medline TA: Br J Math Stat Psychol Country: England |
Other Details:
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Languages: eng Pagination: 419-27 Citation Subset: IM |
Affiliation:
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Department of Psychology, Leiden University, The Netherlands. busing@fsw.leidenuniv.nl |
Export Citation:
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| MeSH Terms | |
Descriptor/Qualifier:
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Algorithms Bias (Epidemiology)* Choice Behavior Computer Graphics Data Interpretation, Statistical* Humans Likelihood Functions* Linear Models* Multivariate Analysis Numerical Analysis, Computer-Assisted Probability* Social Behavior* Software |
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