Three-way metric unfolding via alternating weighted least squares (Q1079311)
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scientific article; zbMATH DE number 3963049
| Language | Label | Description | Also known as |
|---|---|---|---|
| English | Three-way metric unfolding via alternating weighted least squares |
scientific article; zbMATH DE number 3963049 |
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Three-way metric unfolding via alternating weighted least squares (English)
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1985
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A three-way unfolding problem finds points to fit \(\delta_{ijk}\) as subjective distance between ideal point of judge j and stimulus k in situation i. The author shows that the problem of degeneracy can be reduced by using weights in the least squares, such as \(\delta^{- p}_{ijk}\) for some p, and gives some examples.
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weighted least squares
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multidimensional scaling
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preference
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analysis
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three-way unfolding
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