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New Halpern Iteration Method Accelerates Variational Inequality Solutions

Researchers have developed a new Halpern iteration method that significantly improves the convergence rate for solving monotone variational inequalities (MVIs). This novel approach achieves a convergence rate of $\tilde{\mathcal{O}}(T^{-2})$ for MVIs, surpassing previous methods like NPE which had a rate of $\mathcal{O}(T^{-1.5})$. The paper also introduces a generalized $p$th-order method that combines an Anchored Tensor Method with Halpern iteration, achieving a rate of $\tilde{\mathcal{O}}(T^{-p})$, which improves upon existing results for $p \ge 2$. AI

IMPACT This research advances optimization techniques relevant to machine learning algorithms.

RANK_REASON The cluster contains a research paper detailing a new algorithmic method for solving mathematical optimization problems. [lever_c_demoted from research: ic=1 ai=0.7]

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New Halpern Iteration Method Accelerates Variational Inequality Solutions

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  1. arXiv cs.AI TIER_1 English(EN) · Lesi Chen, Xinliang Zhang, Hengyu Wang, Chengchang Liu, Yongchao Chen, Jingzhao Zhang ·

    Halpern Iteration Achieves $\tilde{\mathcal{O}}(\epsilon^{-1/p})$ $p$th-Order Oracle Complexity for Monotone Variational Inequalities

    arXiv:2608.08463v1 Announce Type: cross Abstract: We study second- and higher-order methods for solving smooth monotone variational inequalities (MVI). Monteiro and Svaiter (SIAM J. Optim., 2012) showed that a second-order method, NPE, converges at the rate of $\mathcal{O}(T^{-1.…