GFlowNet Training by Policy Gradients
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Abstract (arXiv)
Generative Flow Networks (GFlowNets) have been shown effective to generate combinatorial objects with desired properties. We here propose a new GFlowNet training framework, with policy-dependent rewards, that bridges keeping flow balance of GFlowNets to optimizing the expected accumulated reward in traditional Reinforcement-Learning (RL). This enables the derivation of new policy-based GFlowNet training methods, in contrast to existing ones resembling value-based RL. It is known that the design of backward policies in GFlowNet training affects efficiency. We further develop a coupled training strategy that jointly solves GFlowNet forward policy training and backward policy design. Performance analysis is provided with a theoretical guarantee of our policy-based GFlowNet training. Experiments on both simulated and real-world datasets verify that our policy-based strategies provide advanced RL perspectives for robust gradient estimation to improve GFlowNet performance.
Key facts. Cited by 4 papers in the map (data through 7 Oct 2026). Builds on 33 of its 47 references that are in the map. First posted on arXiv 12 Aug 2024.
Builds on
33 of 47 references.
References · 33
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21 more
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Built on by
Citing papers per year: 2026: 4.
4 papers.
- 2026Rooted Absorbed Prefix Trajectory Balance with Submodular Replay for GFlowNet Trainingcited by 2
- 2026Evaluating GFlowNet from partial episodes for stable and flexible policy-based trainingcited by 1
- 2026WINFlowNets: Warm-up Integrated Networks Training of Generative Flow Networks for Robotics and Machine Fault Adaptationcited by 0
- 2026Proximal Policy Optimization for Amortized Discrete Samplingcited by 0
- 2026Proximal Policy Optimization for Amortized Discrete Sampling14 Jun 2026
- 2026WINFlowNets: Warm-up Integrated Networks Training of Generative Flow Networks for Robotics and Machine Fault Adaptation18 Mar 2026
- 2026Evaluating GFlowNet from partial episodes for stable and flexible policy-based training1 Mar 2026
- 2026Rooted Absorbed Prefix Trajectory Balance with Submodular Replay for GFlowNet Training28 Feb 2026