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pro vyhledávání: '"3-WAY ARRAYS"'
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Autor:
Paolo Giordani, Henk A.L. Kiers
Publikováno v:
Statistics in Medicine, 37(1), 137-156. Wiley
In many situations, a researcher is interested in the analysis of the scores of a set of observation units on a set of variables. However, in medicine, it is very frequent that the information is replicated at different occasions. The occasions can b
Autor:
Alwin Stegeman, Tam T. T. Lam
Publikováno v:
Psychometrika, 79(3), 426-443. SPRINGER
A three-mode covariance matrix contains covariances of N observations (e.g., subject scores) on J variables for K different occasions or conditions. We model such an JK×JK covariance matrix as the sum of a (common) covariance matrix having Candecomp
Autor:
Tam T. T. Lam, Alwin Stegeman
Publikováno v:
SIAM Journal on Matrix Analysis and Applications, 33(4), 1250-1271
In this paper, we derive improved uniqueness conditions for a constrained version of the canonical order-3 tensor decomposition, also known as Candecomp/Parafac (CP). CP decomposes a three-way array into a prespecified number of outer product arrays.
Autor:
Alwin Stegeman
Publikováno v:
Linear Algebra and Its Applications, 431(1-2), 211-227
In the Candecomp/Parafac (CP) model, a three-way array X is written as the sum of R outer vector product arrays and a residual array. The former comprise the columns of the component matrices A , B and C . For fixed residuals, ( A , B , C ) is unique
Publikováno v:
Linear Algebra and Its Applications, 430(2-3), 818-829
Linear Algebra and its Applications
Linear Algebra and its Applications, Elsevier, 2009, 430 (2-3), pp.818-829. ⟨10.1016/j.laa.2008.09.023⟩
Linear Algebra and its Applications, Elsevier, 2009, 430 (2-3), pp.818-829. 〈10.1016/j.laa.2008.09.023〉
Linear Algebra and its Applications, 2009, 430 (2-3), pp.818-829. ⟨10.1016/j.laa.2008.09.023⟩
Linear Algebra and its Applications
Linear Algebra and its Applications, Elsevier, 2009, 430 (2-3), pp.818-829. ⟨10.1016/j.laa.2008.09.023⟩
Linear Algebra and its Applications, Elsevier, 2009, 430 (2-3), pp.818-829. 〈10.1016/j.laa.2008.09.023〉
Linear Algebra and its Applications, 2009, 430 (2-3), pp.818-829. ⟨10.1016/j.laa.2008.09.023⟩
The Candecomp/Parafac algorithm approximates a set of matrices X 1 , … , X I by products of the form AC i B ′ , with C i diagonal, i = 1 , … , I . Carroll and Chang have conjectured that, when the matrices are symmetric, the resulting A and B w
Publikováno v:
SIAM Journal on Matrix Analysis and Applications. 30(4):1614-1638
Computing the Candecomp/Parafac (CP) solution of R components (i.e., the best rank-R approximation) for a generic I x J x 2 array may result in diverging components, also known as "degeneracy." In such a case, several components are highly correlated
Sufficient conditions for uniqueness in Candecomp/Parafac and Indscal with random component matrices
Publikováno v:
Psychometrika, 71(2), 219-229. SPRINGER
A key feature of the analysis of three-way arrays by Candecomp/Parafac is the essential uniqueness of the trilinear decomposition. We examine the uniqueness of the Candecomp/Parafac and Indscal decompositions. In the latter, the array to be decompose
Autor:
Alwin Stegeman, Jos M. F. ten Berge
Publikováno v:
Computational Statistics and Data Analysis, 50(1), 210-220. ELSEVIER SCIENCE BV
A key feature of the analysis of three-way arrays by Candecomp/Parafac is the essential uniqueness of the trilinear decomposition. Kruskal has previously shown that the three component matrices involved are essentially unique when the sum of their k-
Autor:
Jos M. F. ten Berge
Publikováno v:
Journal of Chemometrics, 18(1), 12-16
A key property of CANDECOMP/PARAFAC is the essential uniqueness it displays under certain conditions. It has been known for a long time that, when these conditions are not met, partial uniqueness may remain. Whereas considerable progress has been mad