16 citations · 41 across the 17 of their papers we have counts for
3 papers · 1 filter
Deep Nonnegative Matrix Factorization with Beta Divergences
Valentin Leplat, Le Thi Khanh Hien, Akwum Onwunta +1
Deep Nonnegative Matrix Factorization (deep NMF) has recently emerged as a valuable technique for extracting multiple layers of features across different scales. However, all exist…
Complexity analysis of regularization methods for implicitly constrained least squares
Akwum Onwunta, Clément W. Royer
Optimization problems constrained by partial differential equations (PDEs) naturally arise in scientific computing, as those constraints often model physical systems or the simulat…
Smoothed Moreau-Yosida Tensor Train Approximation of State-constrained Optimization Problems under Uncertainty
Harbir Antil, Sergey Dolgov, Akwum Onwunta
We propose an algorithm to solve optimization problems constrained by partial (ordinary) differential equations under uncertainty, with almost sure constraints on the state variabl…