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Rui Tao

5 accepted papers

2026

OVLR: Efficient, Scalable, and Robust Training via Output-Level Variance-Reduced Likelihood Ratio

ICML 2026poster

Gradient-based optimization is fundamental to deep learning, yet standard backpropagation (BP) is inherently limited by the requirement of differentiability, rendering it brittle when encountering piecewise-constant objectives with vanishing gradients (e.g., hard 0-1 loss) or black-box feedback. Whi…

Cited by 0Source ↗Scholar ↗
2026

RiskPO: Risk-based Policy Optimization with Verifiable Reward for LLM Post-Training

ICLR 2026poster

Reinforcement learning with verifiable reward has recently emerged as a central paradigm for post-training large language models (LLMs); however, prevailing mean-based methods, such as Group Relative Policy Optimization (GRPO), suffer from entropy collapse and limited reasoning gains. We argue that…

Cited by 0Source ↗code ↗Scholar ↗
2024

Audio Generation with Multiple Conditional Diffusion Model

AAAI 2024technical

Text-based audio generation models have limitations as they cannot encompass all the information in audio, leading to restricted controllability when relying solely on text. To address this issue, we propose a novel model that enhances the controllability of existing pre-trained text-to-audio models…

2024

Semi-Supervised Sound Event Detection with Local and Global Consistency Regularization

ICASSP 2024accepted

Learning meaningful frame-wise features on a partially labeled dataset is crucial to semi-supervised sound event detection. Prior works either maintain consistency on frame-level predictions or seek feature-level similarity among neighboring frames, which cannot exploit the potential of unlabeled da…

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2022

A Robotic End-Effector for Screwing and Unscrewing Bolts From the Side

RA-L 2022

This letter presents a novel robotic end-effector for screwing and unscrewing bolts. In many industrial scenarios, it is required to manipulate bolts from the side using robots with end-effectors. Besides, the reaction torque during tightening needs to be balanced to the stability of the robot. To a

Cited by 7Source ↗Scholar ↗