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Xu Han

5 papers indexed

openalexFrontiers in Microbiology2026-07-24

Metabolic reprogramming is associated with symptomatic COVID-19: a serum proteomics and causal inference study identifying ALDOB and glycerol as candidate metabolic correlates

Nana Guo, Xianlei Zhou, Ziyi Pang, Yan Li, Caixiao Jiang, Minghao Geng, et al.

Introduction Coronavirus disease 2019 (COVID-19) shows prominent clinical heterogeneity, presenting two distinct clinical phenotypes including asymptomatic infection and severe symptomatic disease, yet the molecular mechanisms driving such phenotypic differences remain unclear. T…

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openalexSensors2026-07-23

Health Monitoring of Offshore Wind Structures: Sensing Technology, Uncertainty, and Artificial Intelligence

Ruixin Li, Qiang Liu, Xu Han, Xin Li

Offshore wind farms are rapidly expanding into deeper and more remote ocean regions. Their structural safety and operational reliability in harsh marine environments have garnered widespread global attention. Sensing technologies capture structural and environmental conditions an…

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arxivcs.CVcs.AIcs.LG2026-07-13

Self-Consistent Flow: Unifying Velocity and Endpoint Prediction for Rectified Flow Models

Xu Han, Jiajing Hu, Li-Ping Liu

In rectified-flow-based generative models, the neural network can be trained to predict two different targets, such as the instantaneous velocity or the data endpoint, to perform denoising. Although prior work shows that these parameterizations lead to different empirical behavio…

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arxivcs.CLcs.AI2026-07-09

UltraX: Refining Pre-Training Data at Scale with Adaptive Programmatic Editing

Xinlong Zhao, Dongsheng Liu, Hengyu Zhao, Zixuan Fu, Zheng Wang, Jie Cai, et al.

As available training data approaches its physical limit, gains from Scaling Laws have begun to diminish. Consequently, improving Large Language Models (LLMs) now depends less on data expansion and more on higher-quality data utilization. However, in the context of large-scale co…

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arxivcs.AI2026-06-26

NormAct: A Benchmark for Hidden Social Norm Compliance in Embodied Planning

Shiyun Zhao, Xinwei Song, Tianyu Guo, Xiaomeng Gao, Mingyuan Liu, Xu Han, et al.

Multimodal large language models (MLLMs) are increasingly deployed as embodied planners in egocentric environments, where task success requires not only achieving instructed goals but also acting in socially appropriate ways. While explicit goals may render certain actions optima…

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