Self-Critical Alternate Learning based Semantic Broadcast Communication

no code implementations • 3 Dec 2023 • Zhilin Lu, Rongpeng Li, Ming Lei, Chan Wang, Zhifeng Zhao, Honggang Zhang

In particular, to enable stable optimization via a nondifferentiable semantic metric, we regard sentence similarity as a reward and formulate this learning process as an RL problem.

Reinforcement Learning (RL) Semantic Similarity +3

AoI-based Temporal Attention Graph Neural Network for Popularity Prediction and Content Caching

no code implementations • 18 Aug 2022 • Jianhang Zhu, Rongpeng Li, Guoru Ding, Chan Wang, Jianjun Wu, Zhifeng Zhao, Honggang Zhang

In this paper, to maximize the cache hit rate, we leverage an effective dynamic graph neural network (DGNN) to jointly learn the structural and temporal patterns embedded in the bipartite graph.