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**Setting up alternating least squares and iterative majorization algorithms for solving various matrix optimization problems.**
*(English)*
Zbl 1018.65074

Summary: A general procedure is described for setting up monotonically convergent algorithms to solve some general matrix optimization problems, if desired, subject to a wide variety of constraints. An overview is given of a number of ready-made building blocks (derived in earlier publications) from which concrete algorithms are set-up with little effort. These algorithms are based on alternating least squares (block relaxation) and iterative majorization. It is demonstrated how the construction of an algorithm for a particular problem that falls in one of the classes of optimization problems under study, reduces to a simple combination of tools. Also, a procedure is reviewed for setting up a weighted least squares algorithm for any problem for which an unweighted least squares solution is available. All procedures are illustrated by means of examples.

### MSC:

65K05 | Numerical mathematical programming methods |

90C20 | Quadratic programming |

65F20 | Numerical solutions to overdetermined systems, pseudoinverses |

### Keywords:

numerical examples; algorithms; matrix optimization problems; alternating least squares; iterative majorization; weighted least squares
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\textit{H. A. L. Kiers}, Comput. Stat. Data Anal. 41, No. 1, 157--170 (2002; Zbl 1018.65074)

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### References:

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