Author

Jun Liu

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#graph neural networks Oct 2026

HGT-PPO: A Hybrid Graph-Transformer Approach for Large-Scale DAG Task Scheduling in SAGIN

Space–air–ground integrated network (SAGIN) provides a promising computing infrastructure for 6G applications, but scheduling large-scale directed acyclic graph (DAG) tasks in such networks remains challenging due to dynamic topology, heterogeneous resources, and complex intertask dependencies. This article investigate...

Meihui Chen, Jun Liu, Qingxiao Xiu et al. · IEEE Internet of Things Jour... · 0 citations

Open access Jul 2026

Enhanced Soft Actor–Critic with Dual-Path Channel Attention for UAV Autonomous Navigation in Complex Environments

In complex and unknown environments, unmanned aerial vehicle (UAV) autonomous navigation still faces issues such as insufficient representation of state characteristics, fixed reward guidance, and low efficiency in utilizing key experience samples. To address these problems, this paper proposes an improved soft actor–c...

Yufei Wang, Tong Zhang, Fan Zhou et al. · Applied Sciences · 0 citations