Trendafilov, Nickolay T.
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|DOI (Digital Object Identifier) Link:||http://doi.org/10.1023/A:1014882518644|
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A model for analysis and visualization of asymmetric data—GIPSCAL—is reconsidered by means of the projected gradient approach. GIPSCAL problem is formulated as initial value problem for certain first order matrix ordinary differential equations. This results in a globally convergent algorithm for solving GIPSCAL. Additionally, first and second order optimality conditions for the solutions are established. A generalization of the GIPSCAL model for analyzing three-way arrays is also considered. Finally, results from simulation experiments are reported.
|Item Type:||Journal Article|
|Copyright Holders:||2002 Kluwer Academic Publishers|
|Keywords:||data reduction and representation; two-way asymmetric data; three-way asymmetric data; dynamical systems on Stiefel manifold; optimality conditions|
|Academic Unit/Department:||Faculty of Science, Technology, Engineering and Mathematics (STEM) > Mathematics and Statistics
Faculty of Science, Technology, Engineering and Mathematics (STEM)
|Depositing User:||Nickolay Trendafilov|
|Date Deposited:||31 Mar 2011 15:02|
|Last Modified:||06 Aug 2016 11:35|
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