A First Order Method for Solving Convex Bi-Level Optimization Problems
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Abstract (arXiv)
In this paper we study convex bi-level optimization problems for which the inner level consists of minimization of the sum of smooth and nonsmooth functions. The outer level aims at minimizing a smooth and strongly convex function over the optimal solutions set of the inner problem. We analyze a first order method which is based on an existing fixed-point algorithm. Global sublinear rate of convergence of the method is established in terms of the inner objective function values.
Key facts. Cited by 67 papers in the map (data through 14 Oct 2026). First posted on arXiv 13 Feb 2017.
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Citing papers per year: 2021: 10; 2022: 9; 2023: 10; 2024: 18; 2025: 8; 2026: 12.
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- 2021Investigating Bi-Level Optimization for Learning and Vision from a Unified Perspective: A Survey and Beyondcited by 153
- 2021A Near-Optimal Algorithm for Stochastic Bilevel Optimization via Double-Momentumcited by 106
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- 2025BLUR: A Bi-Level Optimization Approach for LLM Unlearningcited by 23
- 2021Tighter Analysis of Alternating Stochastic Gradient Method for Stochastic Nested Problemscited by 22
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- 2022A Single-Timescale Analysis For Stochastic Approximation With Multiple Coupled Sequencescited by 17
- 2024Imperative Learning: A Self-supervised Neuro-Symbolic Learning Framework for Robot Autonomycited by 16
- 2024Bilevel Optimization under Unbounded Smoothness: A New Algorithm and Convergence Analysiscited by 15
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- 2023Projection-Free Methods for Stochastic Simple Bilevel Optimization with Convex Lower-level Problemcited by 13
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- 2024Variance-Reduced Fast Krasnoselkii-Mann Methods for Finite-Sum Root-Finding Problemscited by 3
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50 most cited of 67 All 67 (JSON)
- 2026Dual-Anchor Acceleration Is Near-Optimal for Stochastic Monotone Root-Finding28 Sep 2026
- 2026Polyak-Type Extragradient Methods for Monotone Root-Finding Problems22 Sep 2026
- 2026Oracle Complexity of Stochastic Fixed-Point Equations with Nonexpansive Maps8 Sep 2026
- 2026Direct Acceleration of Stochastic Root-Finding Without Variance Reduction and Regularization12 Aug 2026
- 2026Provable Parameter-Free Fixed-Point Algorithms with Linear Convergence Rates10 Aug 2026
- 2026Stabilizing Deep Reconstruction Operators with Contractive Anchoring25 Jul 2026
- 2026Solving Stochastic Fixed-Point Equations with High Probability10 Jul 2026
- 2026DUET: Decentralized Bilevel Optimization without Lower-Level Strong Convexity19 Jun 2026
- 2026Learning Policy from a Single Trajectory in Average-Reward Markov Decision Process15 Jun 2026
- 2026A Unifying View of Anchoring via Operator-Side Tikhonov Regularization29 May 2026
- 2026A Tale of Two Problems: Multi-Task Bilevel Learning Meets Equality Constrained Multi-Objective Optimization9 May 2026
- 2026Safety at One Shot: Patching Fine-Tuned LLMs with A Single Instance5 Jan 2026
38 more
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- 2025Cautious Weight Decay14 Oct 2025
- 2025On the Complexity of Finding Stationary Points in Nonconvex Simple Bilevel Optimization30 Jul 2025
- 2025Faster Fixed-Point Methods for Multichain MDPs26 Jun 2025
- 2025BLUR: A Bi-Level Optimization Approach for LLM Unlearning9 Jun 2025
- 2025Direct Prediction Set Minimization via Bilevel Conformal Classifier Training7 Jun 2025
- 2025Model-Free Robust Average-Reward Reinforcement Learning with Sample Complexity Analysis18 May 2025
- 2024A Nearly Optimal Single Loop Algorithm for Stochastic Bilevel Optimization under Unbounded Smoothness28 Dec 2024
- 2024Provably Faster Algorithms for Bilevel Optimization via Without-Replacement Sampling7 Nov 2024
- 2024Asymptotic regularity of a generalised stochastic Halpern scheme7 Nov 2024
- 2024SEAL: Safety-enhanced Aligned LLM Fine-tuning via Bilevel Data Selection9 Oct 2024
- 2024An Accelerated Algorithm for Stochastic Bilevel Optimization under Unbounded Smoothness28 Sep 2024
- 2024Functionally Constrained Algorithm Solves Convex Simple Bilevel Problems10 Sep 2024
- 2024HPPP: Halpern-type Preconditioned Proximal Point Algorithms and Applications to Image Restoration18 Jul 2024
- 2024Imperative Learning: A Self-supervised Neuro-Symbolic Learning Framework for Robot Autonomy23 Jun 2024
- 2024First-Order Methods for Linearly Constrained Bilevel Optimization18 Jun 2024
- 2024Variance-Reduced Fast Krasnoselkii-Mann Methods for Finite-Sum Root-Finding Problems4 Jun 2024
- 2024Accelerated Fully First-Order Methods for Bilevel and Minimax Optimization1 May 2024
- 2024Stochastic Halpern iteration in normed spaces and applications to reinforcement learning19 Mar 2024
- 2024An Accelerated Gradient Method for Convex Smooth Simple Bilevel Optimization12 Feb 2024
- 2024Principled Penalty-based Methods for Bilevel Reinforcement Learning and RLHF10 Feb 2024
- 2024Revisiting Inexact Fixed-Point Iterations for Min-Max Problems: Stochasticity and Structured Nonconvexity7 Feb 2024
- 2024Careful with that Scalpel: Improving Gradient Surgery with an EMA5 Feb 2024
- 2024Bilevel Optimization under Unbounded Smoothness: A New Algorithm and Convergence Analysis17 Jan 2024
- 2024Joint Unsupervised and Supervised Training for Automatic Speech Recognition via Bilevel Optimization13 Jan 2024
- 2023Achieving O(ε-1.5) Complexity in Hessian/Jacobian-free Stochastic Bilevel Optimization6 Dec 2023
- 2023Projection-Free Methods for Stochastic Simple Bilevel Optimization with Convex Lower-level Problem15 Aug 2023
- 2023Convex Bi-Level Optimization Problems with Non-smooth Outer Objective Function17 Jul 2023
- 2023A Generalized Alternating Method for Bilevel Learning under the Polyak-Lojasiewicz Condition4 Jun 2023
- 2023SimFBO: Towards Simple, Flexible and Communication-efficient Federated Bilevel Learning30 May 2023
- 2023Accelerating Value Iteration with Anchoring26 May 2023
- 2023Communication-Efficient Federated Bilevel Optimization with Local and Global Lower Level Problems13 Feb 2023
- 2023On Penalty-based Bilevel Gradient Descent Method10 Feb 2023
- 2023Extragradient-Type Methods with O (1/k) Last-Iterate Convergence Rates for Co-Hypomonotone Inclusions8 Feb 2023
- 2023Averaged Method of Multipliers for Bi-Level Optimization without Lower-Level Strong Convexity7 Feb 2023
- 2022Advancing Model Pruning via Bi-level Optimization8 Oct 2022
- 2022A Single-Timescale Analysis For Stochastic Approximation With Multiple Coupled Sequences21 Jun 2022
50 newest of 67 All 67 (JSON)
- 2025BLUR: A Bi-Level Optimization Approach for LLM Unlearningcited by 23
- 2021Investigating Bi-Level Optimization for Learning and Vision from a Unified Perspective: A Survey and Beyondcited by 153
- 2021A Near-Optimal Algorithm for Stochastic Bilevel Optimization via Double-Momentumcited by 106
- 2023On Penalty-based Bilevel Gradient Descent Methodcited by 87
- 2021A Single-Timescale Method for Stochastic Bilevel Optimizationcited by 69
- 2024SEAL: Safety-enhanced Aligned LLM Fine-tuning via Bilevel Data Selectioncited by 64
- 2022Advancing Model Pruning via Bi-level Optimizationcited by 56
- 2021A Fully Single Loop Algorithm for Bilevel Optimization without Hessian Inversecited by 53
- 2021Randomized Stochastic Variance-Reduced Methods for Multi-Task Stochastic Bilevel Optimizationcited by 33
- 2023Averaged Method of Multipliers for Bi-Level Optimization without Lower-Level Strong Convexitycited by 26
- 2021Tighter Analysis of Alternating Stochastic Gradient Method for Stochastic Nested Problemscited by 22
- 2022Local Stochastic Bilevel Optimization with Momentum-Based Variance Reductioncited by 20
- 2022Stochastic Halpern Iteration with Variance Reduction for Stochastic Monotone Inclusionscited by 19
12 most cited of 60 All 60 (JSON)
- 2026Dual-Anchor Acceleration Is Near-Optimal for Stochastic Monotone Root-Finding28 Sep 2026
- 2026Polyak-Type Extragradient Methods for Monotone Root-Finding Problems22 Sep 2026
- 2026Oracle Complexity of Stochastic Fixed-Point Equations with Nonexpansive Maps8 Sep 2026
- 2026Direct Acceleration of Stochastic Root-Finding Without Variance Reduction and Regularization12 Aug 2026
- 2026Provable Parameter-Free Fixed-Point Algorithms with Linear Convergence Rates10 Aug 2026
- 2026Stabilizing Deep Reconstruction Operators with Contractive Anchoring25 Jul 2026
- 2026Solving Stochastic Fixed-Point Equations with High Probability10 Jul 2026
- 2026DUET: Decentralized Bilevel Optimization without Lower-Level Strong Convexity19 Jun 2026
- 2026Learning Policy from a Single Trajectory in Average-Reward Markov Decision Process15 Jun 2026
- 2026A Unifying View of Anchoring via Operator-Side Tikhonov Regularization29 May 2026
- 2026A Tale of Two Problems: Multi-Task Bilevel Learning Meets Equality Constrained Multi-Objective Optimization9 May 2026
- 2025A Class of Accelerated Fixed-Point-Based Methods with Delayed Inexact Oracles and Its Applications15 Dec 2025
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