Essays about: "nonnegative matrices"
Found 3 essays containing the words nonnegative matrices.
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1. Perron-Frobenius' Theory and Applications
University essay from Linköpings universitet/Algebra, geometri och diskret matematik; Linköpings universitet/Tekniska fakultetenAbstract : This is a literature study, in linear algebra, about positive and nonnegative matrices and their special properties. We say that a matrix or a vector is positive/nonnegative if all of its entries are positive/nonnegative. First, we study some generalities and become acquainted with two types of nonnegative matrices; irreducible and reducible. READ MORE
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2. Optimization over nonnegative matrix polynomials
University essay from Linköpings universitet/Institutionen för systemteknikAbstract : This thesis is concerned with convex optimization problems over matrix polynomials that are constrained to be positive semidefinite on the unit circle. Problems of this form appear in signal processing and can often be solved as semidefinite programs (SDPs). READ MORE
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3. New Variants of Nonnegative Matrix Factorization with Application to Speech Coding and Speech Enhancement
University essay from KTH/Skolan för elektroteknik och datavetenskap (EECS)Abstract : In this thesis, new variants of nonnegative matrix factorization (NMF) based ona convolutional data model, -divergence and sparsication are developed andanalyzed. These NMF variants are collectively referred to as -CNMF. Commonsparsication techniques such as L1-norm minimization and elastic net arediscussed and a new regularizer is proposed. READ MORE