الباحثون

Ziwei Liu

المنشورات 6

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Beamforming and Trajectory Optimization for Aerial RIS-Aided Secure ISAC via Model Predictive Control

Zhendong Li, Zesheng Zhang, Zhou Su وآخرون · 2026

This paper proposes a novel aerial reconfigurable intelligent surface (RIS)-aided secure integrated sensing and communication (ISAC) architecture. An unmanned aerial vehicle (UAV)-mounted RIS establishes virtual line-of-sight links to bypass blockages, serving legitimate users while sensing potential eavesdroppers. To …

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Looped Diffusion Transformer

Yong Xien Chng, Tianyi Chen, Wenwen Tong وآخرون · 2026

Improving text-to-image models has traditionally relied on increasing model size or the number of denoising steps. In this work, we explore an alternative way to scale computation by repeatedly running shared Transformer blocks within each denoising step, effectively increasing computational depth while keeping the par …

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Learning Native Reflection in Unified Models with Interleaved Reinforcement Learning

Yijia Fan, Ziqi Huang, Zhongang Cai وآخرون · 2026

Unified multimodal models can both look at and render images, so in principle they can repair their own generations: diagnose what an image gets wrong, revise it, observe the result, and diagnose again. Whether a revision helps is known only after it is rendered, so the reflection text and the image generation must be …

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Video-HopChain: Multi-Hop Questions and Confidence-Gated Exploration for Video Reasoning Models

Trung Nguyen Quang, Yuhao Dong, Shuo Sun وآخرون · 2026

HopChain has shown on still images that multi-hop data synthesis improves vision-language reasoning, because long chain-of-thought reasoning exposes errors that compound across steps, while most data used for reinforcement learning with verifiable rewards (RLVR) rarely demands a chain of visual evidence, so these weakn …

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