Filtered critic gradients speed reinforcement learning for flow-based robot policies

QF3 updates flow policies using selectively applied action-value gradients, enabling faster humanoid training and manipulation fine-tuning.

Independent
Chung Min Kim · Brent Yi · David McAllister · Hongsuk Choi · Himanshu Gaurav Singh · Jinkun Cao · +4 more
Research Digest··2 min read
Kim and colleagues introduce QF3, an online, off-policy reinforcement learning algorithm for flow policies, which generate robot actions through an iterative learned transformation.

QF3 trains a flow policy from replayed interaction data.

Why this paper

Independent

In one line

QF3 is the first off-policy flow RL method to train humanoid locomotion from scratch, achieve 10x speedup, and transfer zero-shot to hardware.

What we could check

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Research Digest

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