TY - Journal of Yangtze River Scientific Research Institute A1 - ZHANG Ying, ZHI Huan-le, JIANG Shui-hua T1 - Multi-risk Index Evaluation Approach for Levee Engineering Based on Extreme Learning Machine Y1 - 2021-11-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 80 EP - 85 VL - 38 IS - 11 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20200732 ER -