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New support-set algorithm accelerates optimization for nonnegative and orthogonal constraints

Researchers have developed a novel support-set algorithm designed to efficiently solve optimization problems with nonnegative and orthogonal constraints. This algorithm leverages the property that the global solution of subproblems can be computed in closed form, significantly improving computational efficiency. The proposed method ensures the feasibility of iterates and adjusts the placement of nonzero entries through a strategic update scheme for support sets. Convergence to a first-order stationary point is established, with an iteration complexity of $O(\epsilon^{-2})$ for reaching an $\epsilon$-approximate first-order stationary point. Numerical results indicate strong performance in applications such as nonnegative PCA, clustering, and community detection. AI

RANK_REASON The cluster contains an academic paper detailing a new algorithm for optimization problems. [lever_c_demoted from research: ic=1 ai=0.4]

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New support-set algorithm accelerates optimization for nonnegative and orthogonal constraints

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The cluster contains an academic paper detailing a new algorithm for optimization problems. [lever_c_demoted from research: ic=1 ai=0.4]
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COVERAGE [1]

  1. arXiv stat.ML TIER_1 English(EN) · Lei Wang, Xin Liu, Xiaojun Chen ·

    A Support-Set Algorithm for Optimization Problems with Nonnegative and Orthogonal Constraints

    arXiv:2511.03443v2 Announce Type: replace-cross Abstract: In this paper, we investigate optimization problems with nonnegative and orthogonal constraints, where any feasible matrix of size $n \times p$ exhibits a sparsity pattern such that each row accommodates at most one nonzer…