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基于改进的BP算法的非线性稳定环辨识 被引量:4
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作者 娄奥 姚敏立 袁丁 《电光与控制》 CSCD 北大核心 2019年第11期15-18,69,共5页
"动中通"伺服系统的稳定环因受齿隙摩擦等因素的影响,表现出较强的非线性特征。标准BP算法对非线性系统虽有较好的辨识效果,但存在网络收敛慢、过程振荡、泛化能力差等缺点。为弥补这些不足,提出了基于累积误差函数梯度的双... "动中通"伺服系统的稳定环因受齿隙摩擦等因素的影响,表现出较强的非线性特征。标准BP算法对非线性系统虽有较好的辨识效果,但存在网络收敛慢、过程振荡、泛化能力差等缺点。为弥补这些不足,提出了基于累积误差函数梯度的双学习步长的自适应BP算法,以加快收敛、减少振荡,并设置全局误差阈值控制训练次数,进一步提升泛化能力。通过在"动中通"平台上设计实验,验证了改进后算法在收敛性、辨识精度、泛化能力等方面都有明显提升,可以得到非线性稳定环更精确的BP网络模型。 展开更多
关键词 系统辨识 非线性稳定环 BP神经网络 自适应步长
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The value selection in the socialist public cultural services system innovation of colleges
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作者 min-li Feng-Guo Jiang 《International Journal of Technology Management》 2014年第5期16-18,共3页
The development of a national culture represents the quality of the citizens of this country, the cultural connotation of a national spirit. With the development of society, citizens demand more exuberant cultural ser... The development of a national culture represents the quality of the citizens of this country, the cultural connotation of a national spirit. With the development of society, citizens demand more exuberant cultural services. Therefore, strengthening the construction of public cultural service system is imperative, at the same time, the public cultural system construction is the development and prosperity of socialist advanced culture, and building a harmonious society, the government system of public cultural services for the public and cultural life, which also constitutes a multifaceted innovative public cultural service system Building model in the public service, is the focus of the new era of cultural undertakings . 展开更多
关键词 public culture service system corporate social responsibility
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Path of public cultural service system construction of Ethnic Frontier Regions
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作者 min-li Feng-Guo Jiang 《International Journal of Technology Management》 2014年第4期14-16,共3页
The border areas of public culture construction, as an important part ot socialist CUlture construction, to promote me national culture, national spirit and the spirit of the times, the rich cultural life of the peopl... The border areas of public culture construction, as an important part ot socialist CUlture construction, to promote me national culture, national spirit and the spirit of the times, the rich cultural life of the people of all ethnic groups, to promote national unity and safeguard national unity, strengthen cohesion of the Chinese nation, cohesion and creativity, play an irreplaceable role. To this end, exploring the path of public cultural service system construction of Ethnic Frontier Regions, play an important role in stabilizing cultural security of Ethnic Frontier Regions and enhancing national cultural soft power. 展开更多
关键词 Ethnic Frontier Regions public cultural services cultural supply
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