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Yuhang Xu

7 accepted papers

2026

BubbleSpec: Turning Long-Tail Bubbles into Speculative Rollout Drafts for Synchronous Reinforcement Learning

ICML 2026poster

Reinforcement Learning (RL) has become a cornerstone for improving the performance of Large Language Models (LLMs). However, its rollout phase constitutes a significant efficiency bottleneck, mainly arising from the long-tail bubbles across data parallel ranks, particularly in long-context scenarios…

Cited by 0SourceScholar
2026

CT-FLO: Simple Yet Effective FMCW LiDAR Odometry Using an Linear Continuous-Time Trajectory

RA-L 2026

Frequency-Modulated Continuous-Wave (FMCW) LiDAR is capable of acquiring dense point clouds along with additional Doppler measurements. For discrete-time-based FMCW LiDAR odometry methods, motion distortion correction for both 3D and Doppler measurements should be performed before scan matching. How

Cited by 0SourceScholar
2026

SEED: Structure-Entropy and DCT Enhanced Descriptor for Robust 4D Radar Place Recognition

RA-L 2026

Reliable place recognition in adverse weather remains a critical challenge for autonomous navigation. While 4D millimeter-wave radar provides robust sensing capabilities, its data is characterized by sparsity, multipath noise, and measurement uncertainty. To address these challenges, we propose SEED

Cited by 0SourceScholar
2026

SmartThinker: Progressive Chain-of-Thought Length Calibration for Efficient Large Language Model Reasoning

ICML 2026poster

Large reasoning models (LRMs) like OpenAI o1 and DeepSeek-R1 achieve high accuracy on complex tasks by adopting long chain-of-thought (CoT) reasoning paths. However, the inherent verbosity of these processes frequently results in redundancy and overthinking. To address this issue, existing works lev…

Cited by 0SourceScholar
2024

Intersection-Free Robot Manipulation With Soft-Rigid Coupled Incremental Potential Contact

RA-L 2024

This paper presents a novel simulation platform, ZeMa, designed for robotic manipulation tasks concerning soft objects. Such simulation ideally requires three properties: two-way soft-rigid coupling, intersection-free guarantee, and frictional contact modeling, with acceptable runtime suitable for l

Cited by 9SourceScholar
2018

Cortico-Muscular Coherence Enhancement Via Sparse Signal Representation

ICASSP 2018accepted

Identifiction of specific cortico-muscular interactions is essential for understanding sensorimotor control. These interactions are commonly studied by analyzing cortico-muscular coherence (CMC) between electroencephalogram (EEG) and surface electromyogram (sEMG) recorded synchronously under a motor…

Cited by 0SourceScholar
2016

Delay estimation between EEG and EMG via coherence with time lag

ICASSP 2016accepted

The traditional way to estimate the time delay between the motor cortex and the periphery is based on the estimation of the slope of the phase of the cross spectral density between motor cortex electroencephalogram (EEG) and electromyography (EMG) signals recorded synchronously during a motor contro…

Cited by 0SourceScholar