Handling polysemous triggers and arguments in event extraction: an adaptive semantics learning strategy with reward-penalty mechanism. - Haili Li; Zhiliang Tian; Xiaodong Wang 002; Yunyan Zhou; Shilong Pan; Jie Zhou 032; Qiubo Xu; Dongsheng Li 001 (Frontiers Inf. Technol. Electron. Eng., 2025)