Xi Yu Tiejun Lv Weicai Li Wei Ni 0001 Dusit Niyato Ekram Hossain 0001 Multi-Task Semantic Communication With Graph Attention-Based Feature Correlation Extraction. 4371-4388 2025 May 24 IEEE Trans. Mob. Comput. 5 https://doi.org/10.1109/TMC.2025.3525477 db/journals/tmc/tmc24.html#YuLLNNH25 streams/journals/tmc