PPDformer: Channel-Specific Periodic Patch Division for Time Series Forecasting. - Meng Wan; Qi Su; Huan Hao; Jue Wang 013; Yuexiu Cui; Yuxuan Bi; Rongqiang Cao; Peng Shi 006; Yangang Wang; Zonghua Qiu; Zongshan Zhang (ICASSP, 2025)