Hybrid differential evolution based BOD soft measurement method for farmland water body in rare earth mine lot

• Main Authors: WU ZHIJIAN, GUO ZHAOLU, WANG YANG, YANG HUOGEN, DONG SHANYAN, LIU XIAOSHENG, YU FAHONG
• Format: Patent
• Language: Chinese; English
• Published: 10.05.2017
• Subjects: CALCULATING; COMPUTER SYSTEMS BASED ON SPECIFIC COMPUTATIONAL MODELS; COMPUTING; COUNTING; INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIRCHEMICAL OR PHYSICAL PROPERTIES; MEASURING; PHYSICS; TESTING

The invention discloses a hybrid differential evolution based BOD soft measurement method for a farmland water body in a rare earth mine lot. According to the invention, a neural network is used as a BOD soft measurement model for a farmland water in a rare earth mine lot and a hybrid differential evolution algorithm is utilized to optimize the parameters of the neural network; in the hybrid differential evolution, an optimal individual and a random individual are linearly combined so as to generate a base individual for a mutation operator, so that the balance of exploration search and mining search can be realized; besides, the information of the optimal individual is utilized to guide the search direction of a population so as to increase the precision of the soft measurement. According to the method provided by the invention, the precision of the BOD soft measurement for the farmland water body in a rare earth mine lot can be increased. 本发明公开了种应用混合差分演化的稀土矿区农田水体BOD软测量方法。本发明采用神经网络作为稀土矿区农田水体BOD的软测量模型，并利用混合差分