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1. A block coordinate descent-based projected gradient algorithm for orthogonal non-negative matrix factorization Soodabeh Asadi, Janez Povh, 2021, original scientific article Keywords: non-negative matrix factorization, orthogonality conditions, projected gradient method, multiplicative update algorithm, block coordinate descent |
2. Randomized simplicial Hessian update Árpád Bűrmen, Tadej Tuma, Jernej Olenšek, 2021, original scientific article Keywords: derivative-free optimization, Hessian update, random matrices, uniform distribution |