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math.OC2026
Reservoir Zero-Coordinatewise Projected Subspace Search for Minimization Over Sparse Symmetric Sets in Machine Learning
Morteza Kimiaei, Shima Shabani, Michael Breuss
We study a class of nonconvex cardinality-constrained optimization problems arising in sparse learning. These problems are NP-hard due to the combinatorial nature of sparsity const…
math.OC2025
Semi-Monotone Goldstein Line Search Strategy with Application in Sparse Recovery
Shima Shabani, Michael Breuß
Line search methods are a prominent class of iterative methods to solve unconstrained minimization problems. These methods produce new iterates utilizing a suitable step size after…