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检索条件"主题词=Projected gradient algorithms"
5 条 记 录,以下是1-10 订阅
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Nonnegative Matrix Factorization Using projected gradient algorithms with Sparseness Constraints
Nonnegative Matrix Factorization Using Projected Gradient Al...
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9th IEEE International Symposium on Signal Processing and Information Technology
作者: Mohammadiha, Nasser Leijon, Arne KTH Dept Elect Engn Stockholm Sweden
Recently projected gradient (PG) approaches have found many applications in solving the minimization problems underlying nonnegative matrix factorization (NMF). NMF is a linear representation of data that could lead t... 详细信息
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Nonmonotone projected gradient methods based on barrier and Euclidean distances
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COMPUTATIONAL OPTIMIZATION AND APPLICATIONS 2007年 第3期38卷 305-327页
作者: Auslender, Alfred Silva, Paulo J. S. Teboulle, Marc Tel Aviv Univ Sch Math Sci IL-69978 Tel Aviv Israel Univ Lyon 1 Inst Camille Jordan F-69365 Lyon France Univ Sao Paulo Inst Math & Stat Sao Paulo Brazil
We consider nonmonotone projected gradient methods based on non-Euclidean distances, which play the role of barrier for a given constraint set. Our basic scheme uses the resulting projection-like maps that produces in... 详细信息
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Multilayer nonnegative matrix factorization using projected gradient approaches
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INTERNATIONAL JOURNAL OF NEURAL SYSTEMS 2007年 第6期17卷 431-446页
作者: Cichocki, Andrzej Zdunek, Rafal RIKEN Brain Sci Inst Lab Adv Brain Signal Proc Wako Saitama 3510198 Japan
The most popular algorithms for Nonnegative Matrix Factorization (NMF) belong to a class of multiplicative Lee-Seung algorithms which have usually relative low complexity but are characterized by slow-convergence and ... 详细信息
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On the solution of the symmetric eigenvalue complementarity problem by the spectral projected gradient algorithm
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NUMERICAL algorithms 2008年 第4期47卷 391-407页
作者: Judice, Joaquim J. Raydan, Marcos Rosa, Silverio S. Santos, Sandra A. Cent Univ Venezuela Dept Computac Caracas 1041A Venezuela Univ Coimbra Dept Matemat P-3000 Coimbra Portugal Univ Beira Interior Dept Matemat Covilha Portugal Univ Estadual Campinas IMECC Dept Matemat Aplicada BR-13081970 Campinas SP Brazil
This paper is devoted to the eigenvalue complementarity problem (EiCP) with symmetric real matrices. This problem is equivalent to finding a stationary point of a differentiable optimization program involving the Rayl... 详细信息
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Constrained Optimization: projected gradient Flows
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JOURNAL OF OPTIMIZATION THEORY AND APPLICATIONS 2009年 第1期140卷 117-130页
作者: Shikhman, V. Stein, O. Rhein Westfal TH Aachen Dept Math C D-52056 Aachen Germany Univ Karlsruhe TH Sch Econ & Business Engn D-76128 Karlsruhe Germany
We consider a dynamical system approach to solve finite-dimensional smooth optimization problems with a compact and connected feasible set. In fact, by the well-known technique of equalizing inequality constraints usi... 详细信息
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