基于在BP嵌入动量因子的IDSS函数逼近器  

IDSS functional approximation based on BP arithmetic mixed with momentum factor

作　　者：钱振伟[1] 高怀雁[1] 罗艳琳[1] 廖鸿志[1] 

机构地区：[1]云南大学系统工程中心,云南昆明650091

出　　处：《云南大学学报（自然科学版）》2002年第6期414-416,共3页Journal of Yunnan University(Natural Sciences Edition)

基　　金：云南省 2 0 0 1年软科学重点项目 (2 0 0 2ZK3 0 )

摘　　要：在领域工程中 ,经验模型都有一定的适用范围和一定的时效性 ,这主要反映在参数和因子的选取上 .加入动量项的BP算法能克服原来BP算法的缺点 ,运用于IDSS的知识推理、导则方面 ,能使模型的系数随环境的变化而变化 .上述思想在“单流域多水库联合调度系统”和“云南城市圈域经济辐射力模型的构建及实证研究”的推理机的设计实验阶段中得到体现 .把该算法用MATLAB和C ++做成函数逼近器来进行曲线拟合 ,实验数据和结果证明 ,该改进的BP算法能自动对“新安江模型”和辐射力模型的参数进行调整使之适合不同时期段的情况 ,这大大加强了该模型对环境的适应性 ,将进一步提高该软件产品的通用性 .In field engineering,experienced model all have their own scope of application,and period of effectiveness.These are determined by the selection of parameter and factor.The BP arithmetic mixed with momentum factor overcomes the weakness of pure BP arithmetic,and it is by the using of the knowledge speculation or deduction.The above-mentioned idea was embodied in the software of 'Single Watershed and Diversified Reservoir Control System'.A functional approximation was made by using MATLAB and C++.It automatically adjust the parameter of 'New Anjiang model' to fit the different situation of different reservoir.So the parameter of model will change with the transformation of the environment,and greatly improve the flexibility of the model and the popularity of the software product.

关 键 词：IDSS BP算法 动量因子 函数逼近器 人工神经网络 新安江模型 辐射力模型 

分 类 号：TP183[自动化与计算机技术—控制理论与控制工程]