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Jun Liu

14 papers indexed

openalexFrontiers in Neuroscience2026-07-24

Identification and validation of mitophagy and astrocyte-related molecular signature in the pathogenesis of Alzheimer's disease: evidence from ensemble learning-driven multi-omics and clinical validation

Jun Liu, Wei Chen

Background Alzheimer's disease (AD) is a progressive neurodegenerative disorder with limited diagnostic tools and therapeutic options. Dysregulated mitophagy in astrocytes plays a pivotal role in AD pathogenesis. This study aims to identify a mitophagy and astrocyte (MA)-associat…

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arxiveess.SP2026-07-20

Waveform Design for OTFS Assisted Simultaneous Acoustic Information and Power Transfer

Jinheng Kang, Yizhe Zhao, Kun Yang, Jun Liu

Simultaneous acoustic information and power transfer (SAIPT) is a promising technique for supporting self-sustainable Internet of Underwater Things (IoUT) networks through concurrent data transmission and energy supplement. However, existing OFDM-based SAIPT studies are vulnerabl…

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arxivmath.DSeess.SYmath.OC2026-07-17

A Globally Asymptotically Stable Planar Homogeneous Polynomial Vector Field With No Polynomial Lyapunov Function

Jun Liu, Maxwell Fitzsimmons

We disprove the conjecture that every globally asymptotically stable homogeneous polynomial vector field admits a homogeneous polynomial Lyapunov function. The counterexample is a planar homogeneous cubic polynomial vector field with integer coefficients. It admits no positive de…

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arxivcs.CV2026-07-07

PhyMRI-SR: Toward Physics-Aware MRI Image Super-Resolution

Lihua Wei, Huatong Gao, Jia Gong, Zhiyu Tan, Hao Li, Jun Liu, et al.

Magnetic resonance imaging (MRI) super-resolution is vital for improving diagnostic accessibility, yet most methods treat it as a deterministic mapping from a fixed low-resolution input to a high-resolution target. This overlooks a key property of MRI acquisition physics: spatial…

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arxiveess.SP2026-07-02

Waveform Design for Underwater Simultaneous Acoustic Information and Power Transfer

Jinheng Kang, Yizhe Zhao, Kun Yang, Jun Liu

Simultaneous acoustic information and power transfer (SAIPT) plays a crucial role in enabling self-sustainable and maintenance-free Internet of Underwater Things (IoUT) networks. This paper studies a multicarrier underwater SAIPT system that jointly considers the frequency-depend…

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arxivcs.AIcs.CV2026-07-02

Text-Driven 3D Indoor Scene Synthesis in Non-Manhattan Environments

Xianhui Meng, Zirui Song, Yuchen Zhang, Li Zhang, Yongxuan Lv, Xiuying Chen, et al.

Large Language Models (LLMs) have demonstrated remarkable capabilities in 3D indoor synthesis for Manhattan environments. However, existing methods often fail to capture plausible object layout patterns in non-Manhattan settings, primarily because they struggle to model non-ortho…

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arxivcs.CV2026-07-02

Training-free Controllable Human Motion Generation under Heterogeneous Constraints

Xiaofei Hui, Bo Yan, Haoxuan Qu, Hossein Rahmani, Jun Liu

Training-free controllable motion generation has attracted growing interest for enabling flexible constraint enforcement without constraint-specific training. However, existing training-free methods require constraints to be continuous objective-based with differentiable losses,…

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arxivcs.CV2026-07-01

Spatial-Temporal Expert Learning for Video-based Person Re-identification

Xiaofei Hui, Pengfei Wang, Evan Ling, Dezhao Huang, Keng Teck Ma, Minhoe Hur, et al.

Video-based person re-identification (Re-ID) aims to retrieve the same identity in the query video clips from the gallery video clips. To solve this problem, exploiting fine-grained features is of great importance, especially when discriminating identities that are similar in app…

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arxivcs.CV2026-06-28

FDM-MFVT: Few-step Sampling Diffusion Model for Mask-Free Virtual Try-On

Jiaxin Liu, Xiaoye Liang, Lai Jiang, Mai Xu, Jun Liu

Image-based Virtual Try-On (IVTON) has greatly advanced through diffusion models, yet existing methods require many sampling steps and depend on masks with costly auxiliary networks. In addition, the absence of large-scale mask-free paired datasets further limits the development…

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arxivcs.AI2026-06-26

JD Oxygen AI Item Center (Oxygen AIIC) V1: An Industrial-Scale LLM/VLM-Centric Solution for Item Understanding, Management, and Applications

Oxygen AIIC, Chan Long, Chao Liu, Chaofan Chen, Chaohui Dong, Chunyuan Guo, et al.

JD$.$com, one of the world's largest e-commerce platforms, serves over 700 million active users and millions of merchants, with a catalog of tens of billions of SKUs. At this scale, high-quality, structured item knowledge underpins a better consumer experience, lower management c…

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arxivcs.CV2026-06-25

TraMP-LLaMA: Generative Interpretability with Decoupled Instruction Tuning for Facial Expression Quality Assessment

Shuchao Duan, Alan Whone, Hossein Rahmani, Jun Liu, Majid Mirmehdi

Existing facial expression quality assessment (FEQA) methods typically produce only a severity score, without explicitly communicating the observable facial motion evidence that supports the prediction. This limits interpretability and makes it difficult to inspect the basis of m…

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