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Zheng Li

7 papers indexed

openalexFrontiers in Marine Science2026-07-23

Effects of ultraviolet-B radiation on the reproduction, germling growth, and physio-biochemical characteristics of green alga Ulva pertusa (Chlorophyta)

Jie Zhang, Hengjiang Cai, Siqi Hu, Wenjing Xie, Weiyao Zhao, Wenfei Gu, et al.

Introduction Enhanced ultraviolet-B (UV-B, 280-320nm) radiation caused by ozone depletion is a global environmental issue. Ulva pertusa Kjellman (Chlorophyta) is often found in shallow intertidal environments exposed to ambient solar radiation. Therefore, the effects of UV-B radi…

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arxivcs.LG2026-07-22

Local Causal Structure Learning in the Presence of Latent Variables and Selection Bias

Zheng Li, Hao Zhang, Ruxin Wang, Ruichu Cai, Kun Zhang, Feng Xie

Discovering the direct causes and effects of a target variable from observational data is a fundamental problem in causal discovery, with broad applications in domains such as gene regulatory analysis and biomedical research. Existing causal discovery methods either learn a globa…

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arxivcs.LG2026-07-17

QUADS: Stabilizing NVFP4 Reinforcement Learning for MoE via QUantization-error Alignment across Dual Sides

Zhengyang Zhuge, Hao Yu, Xin Wang, Zheng Li, Yizhong Cao, Dayiheng Liu, et al.

Rollout generation is a major bottleneck in Reinforcement Learning (RL) for Mixture-of-Experts (MoE) Large Language Models, motivating low-precision rollout acceleration such as FP8. As an emerging low-precision format, NVFP4 combines fine-grained scaling for accuracy preservatio…

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arxivcs.CVcs.AIcs.MM2026-07-10

Event Stream based Multi-Modal Video Anomaly Detection: A Benchmark Dataset and Algorithms

Peipei Zhu, Yueqing Niu, Lin Zhu, Guanchong Niu, Yang Yu, Zheng Li

Video anomaly detection (VAD) is critical for automated surveillance but remains fragile under challenging conditions such as illumination variations, fast motion, and complex backgrounds when relying solely on visible light videos. To address these limitations, we propose EVAD,…

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arxivcs.CV2026-06-28

MirrorPPR: Exemplar-Based Portrait Photo Retouching

Zhihong Liu, Zheng Li, Jiachun Jin, Siqi Kou, Yitao Jian, Fengpei Yu, et al.

While text-guided image editing has made remarkable progress, it remains limited in structural portrait retouching. Textual descriptions struggle to convey fine-grained changes to facial features and body proportions. To address this gap, we introduce Exemplar-Based Portrait Phot…

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