RWKV-7 "Goose" with Expressive Dynamic State Evolution. - Bo Peng; Ruichong Zhang; Daniel Goldstein; Eric Alcaide; Xingjian Du; Haowen Hou; Jiaju Lin; Jiaxing Liu; Janna Lu; William Merrill; Guangyu Song; Kaifeng Tan; et al. (CoRR, 2025)