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Song Liu

2 papers indexed

arxivcs.LGstat.ML2026-07-23

Zero-Flow Two-Sample Tests

Yakun Wang, Leyang Wang, Song Liu, Taiji Suzuki

We propose a new approach to two-sample testing for deciding whether two sets of samples are drawn from the same distribution. The test is built on a statistical discrepancy based on the zero-flow criterion, termed zero-flow discrepancy (ZFD). We prove the validity of ZFD and pro…

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arxivcs.RO2026-07-02

One Demonstration Is Enough for Real-World Robotic Reinforcement Learning

Yuwan Liu, Hongze Yu, Song Liu, Yuhan Wang, Junge Zhang, Yaodong Yang, et al.

Learning effective robot control policies on physical hardware is challenging due to costly data collection and the difficulty of reward specification. Prior work has incorporated demonstrations into reinforcement learning (RL), yet existing approaches either require large number…

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