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基于Hopfield神经网络数字系统测试技术研究
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作者 陆广平 王友仁 《盐城工学院学报(自然科学版)》 CAS 2005年第3期29-32,共4页
介绍了用离散Hopfield神经网络模型把组合电路约束网络转化为能量函数,用数学优化求能量函数的最小值,即为给定固定型故障的测试矢量。经检测故障覆盖率达到100%并通过试探法进一步优化测试矢量集,然后将测试矢量集的响应序列移入本原... 介绍了用离散Hopfield神经网络模型把组合电路约束网络转化为能量函数,用数学优化求能量函数的最小值,即为给定固定型故障的测试矢量。经检测故障覆盖率达到100%并通过试探法进一步优化测试矢量集,然后将测试矢量集的响应序列移入本原多项式求得特征序列,建立故障字典,实验证明该方法切实有效。 展开更多
关键词 神经网络模型 能量函数 数学优化算法 测试集优化 特征提取
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Inflatable Wing Design Parameter Optimization Using Orthogonal Testing and Support Vector Machines 被引量:12
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作者 WANG Zhifei WANG Hua 《Chinese Journal of Aeronautics》 SCIE EI CAS CSCD 2012年第6期887-895,共9页
The robust parameter design method is a traditional approach to robust experimental design that seeks to obtain the optimal combination of factors/levels. To overcome some of the defects of the inflatable wing paramet... The robust parameter design method is a traditional approach to robust experimental design that seeks to obtain the optimal combination of factors/levels. To overcome some of the defects of the inflatable wing parameter design method, this paper proposes an optimization design scheme based on orthogonal testing and support vector machines (SVMs). Orthogonal testing design is used to estimate the appropriate initial value and variation domain of each variable to decrease the number of iterations and improve the identification accuracy and efficiency. Orthogonal tests consisting of three factors and three levels are designed to analyze the parameters of pressure, uniform applied load and the number of chambers that affect the bending response of inflatable wings. An SVM intelligent model is established and limited orthogonal test swatches are studied. Thus, the precise relationships between each parameter and product quality features, as well the signal-to-noise ratio (SNR), can be obtained. This can guide general technological design optimization. 展开更多
关键词 inflatable wing orthogonal test design parameter support vector machines optimization
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