MReg: A Novel Regression Model with MoE-based Video Feature Mining for Mitral Regurgitation Diagnosis. - Zhe Liu; Yuhao Huang 001; Lian Liu; Chengrui Zhang; Haotian Lin 009; Tong Han; Zhiyuan Zhu; Yanlin Chen; Yuerui Chen; Dong Ni 001; Zhongshan Gou; Xin Yang 009 (CoRR, 2025)