TY - Journal of Yangtze River Scientific Research Institute A1 - ZHOU Xiao-ming T1 - Information Extraction for River System Based on Characteristics and Rules:A Case Study on Information Verification of River Chief System in Yichang Y1 - 2018-08-01 JF - Journal of Yangtze River Scientific Research Institute JO - Journal of Yangtze River Scientific Research Institute SP - 128 EP - 131 VL - 35 IS - 8 UR - http://ckyyb.crsri.cn N1 - 10.11988/ckyyb.20180441 ER -