High-frequency and low-frequency dual-channel graph attention network

Yukuan Sun, Yutai Duan, Haoran Ma, Yuelong Li, Jianming Wang

Abstract: Highlights•Negative attention is as important as positive attention in GNNs.•High-frequency information of neighbor plays a decisive role in heterophilic graphs.•The aggregation of low and high frequency information of neighbors improve the performance.•A learnable way is used to fuse low and high frequency information of a specific node.