[1]何新贵,许少华.过程神经元网络及其在时变信息处理中的应用[J].智能系统学报,2006,1(1):1-8.
HE Xin-gui,XU Shao-hua.Process neural networks and its applications in time-varying information processing[J].CAAI Transactions on Intelligent Systems,2006,1(1):1-8.
点击复制
《智能系统学报》[ISSN 1673-4785/CN 23-1538/TP] 卷:
1
期数:
2006年第1期
页码:
1-8
栏目:
综述
出版日期:
2006-03-25
- Title:
-
Process neural networks and its applications in time-varying information processing
- 文章编号:
-
1673-4785(2006)01-0001-08
- 作者:
-
何新贵,许少华
-
北京大学视觉听觉智能信息处理国家实验室,北京100871
- Author(s):
-
HE Xin-gui,XU Shao-hua
-
National Laboratory on Machine Perception,Peking University, Beijing 100871,China
-
- 关键词:
-
过程神经元网络; 时变系统; 信息处理; 学习算法; 仿真试验
- Keywords:
-
process neural networks; time-varying system; information processing; learning algorithm; simulation experiment
- 分类号:
-
TP18
- 文献标志码:
-
A
- 摘要:
-
针对时变信息处理和动态系统建模等类问题,建立了输入输出均为时变函数的过程神经元网络和有理式过程神经元网络2种网络模型.在输入输出为时变函数的过程神经元网络中,过程神经元的时间累积算子取为对时间的积分或其他代数运算,它的时空聚合机制和激励能同时反映外部时变输入信号对输出结果的空间聚合作用和时间累积效应,可实现非线性系统输入、输出之间的复杂映射关系.在有理式过程神经元网络中,其基本信息处理单元为由2个成对偶出现的过程神经元组成,逻辑上分为分子和分母2部分,通过有理式整合后输出,可有效提高过程神经元网络对带有奇异值过程函数的柔韧逼近性和在奇异值点附近反应的灵敏性.分析了2种过程神经元网络模型的性质,给出了具体学习算法,并以油田开发过程模拟和旋转机械故障诊断问题为例,验证了这2种网络模型在时变信息处理中的有效性.
- Abstract:
-
Aimed at the problems of the timevarying information processing and the dynamic system modeling, two kinds of process neural network models, including the rational formula process neural networks and the process neural ne tworks with time-varying inputs and outputs function,were built in this paper. In the process neural networks with timevarying inputs and outputs function, the time accumulation operator of process neuron was adopted as the integral to time or other algebra operations, its spacetime aggregation mechanism and incitation could synchronously reflect the space aggregation and stage time accumulation effect of exterior timevarying input signals to the output results, so as to com plete the complex mapping relationship between the inputs and outputs of non-linear system. In the rational formula process neural networks, its basic information processing unit was made up of two process neurons which appear dually,and logi cally divided into numerator and denominator, then output after rational formula combining, it can effectively advance the flexile approximation of process neural networks to the process functions which have singular values and the facility of reaction nearby the singular value point. The characteristics of these two kinds of process neural networks models were analyzed in this paper, the concrete learning algorithms were given, the effectiveness of these two kinds of network modes in time-varying information processing was proved by the cases of the process simulation and fault diagnosis of rotating machinery in the oil filed exploitation.
更新日期/Last Update:
2009-04-06