Based on the"Understandable Output Hypothesis"a practical study on the construction of college oral English network training camp is set up,through speech learning and imitation,building language input in na...Based on the"Understandable Output Hypothesis"a practical study on the construction of college oral English network training camp is set up,through speech learning and imitation,building language input in natural environment,exploring effective output mode based on information technology platform,providing foreign language learners with opportunities to express language and get feedback.Students use relevant resources on the Internet to complete the oral activities of"thematic activities"together,so as to cultivate students'cooperative learning,communication skills,team spirit and language communication ability.展开更多
This paper proposes a technique for synthesizing a pixel-based photo-realistic talking face animation using two-step synthesis with HMMs and DNNs. We introduce facial expression parameters as an intermediate represent...This paper proposes a technique for synthesizing a pixel-based photo-realistic talking face animation using two-step synthesis with HMMs and DNNs. We introduce facial expression parameters as an intermediate representation that has a good correspondence with both of the input contexts and the output pixel data of face images. The sequences of the facial expression parameters are modeled using context-dependent HMMs with static and dynamic features. The mapping from the expression parameters to the target pixel images are trained using DNNs. We examine the required amount of the training data for HMMs and DNNs and compare the performance of the proposed technique with the conventional PCA-based technique through objective and subjective evaluation experiments.展开更多
三维切削力传感器是智能数控车床的重要组成部分,通过切削力传感器可以间接分析出加工出现的各种问题,如工件加工质量和刀具磨损情况等。设计了一款低交叉干扰的全对中一体化车削力传感器,通过析因分析筛选设计变量,采取最佳空间填充技...三维切削力传感器是智能数控车床的重要组成部分,通过切削力传感器可以间接分析出加工出现的各种问题,如工件加工质量和刀具磨损情况等。设计了一款低交叉干扰的全对中一体化车削力传感器,通过析因分析筛选设计变量,采取最佳空间填充技术和有限元分析结合的方法生成实验设计模型,根据实验设计模型开发了灰狼算法优化的反向传播神经网络的高精度非线性代理模型,对比分析三种优化算法的Pareto前沿,选择TOP算法对代理模型进行多目标优化。优化后:传感器固有频率为1.561 k Hz,满足机床主轴转速在23415 r/min下使用,传感器的平均变形量提升了一倍,根据惠斯通电桥输出电压计算可得,传感器各方向灵敏度提升了10倍左右,Fc方向交叉干扰消除,整体交叉干扰最高为1.9%。展开更多
文摘Based on the"Understandable Output Hypothesis"a practical study on the construction of college oral English network training camp is set up,through speech learning and imitation,building language input in natural environment,exploring effective output mode based on information technology platform,providing foreign language learners with opportunities to express language and get feedback.Students use relevant resources on the Internet to complete the oral activities of"thematic activities"together,so as to cultivate students'cooperative learning,communication skills,team spirit and language communication ability.
文摘This paper proposes a technique for synthesizing a pixel-based photo-realistic talking face animation using two-step synthesis with HMMs and DNNs. We introduce facial expression parameters as an intermediate representation that has a good correspondence with both of the input contexts and the output pixel data of face images. The sequences of the facial expression parameters are modeled using context-dependent HMMs with static and dynamic features. The mapping from the expression parameters to the target pixel images are trained using DNNs. We examine the required amount of the training data for HMMs and DNNs and compare the performance of the proposed technique with the conventional PCA-based technique through objective and subjective evaluation experiments.
文摘三维切削力传感器是智能数控车床的重要组成部分,通过切削力传感器可以间接分析出加工出现的各种问题,如工件加工质量和刀具磨损情况等。设计了一款低交叉干扰的全对中一体化车削力传感器,通过析因分析筛选设计变量,采取最佳空间填充技术和有限元分析结合的方法生成实验设计模型,根据实验设计模型开发了灰狼算法优化的反向传播神经网络的高精度非线性代理模型,对比分析三种优化算法的Pareto前沿,选择TOP算法对代理模型进行多目标优化。优化后:传感器固有频率为1.561 k Hz,满足机床主轴转速在23415 r/min下使用,传感器的平均变形量提升了一倍,根据惠斯通电桥输出电压计算可得,传感器各方向灵敏度提升了10倍左右,Fc方向交叉干扰消除,整体交叉干扰最高为1.9%。
