This thesis focuses on the problem of modeling user requirements . the leading instructional ideology in this thesis is that software requirement must truly reflect the users " needs 本文主要研究软件需求建模问题,其主要思想是:软件需求必须反映市场和用户的真实需要,这是开发新软件系统的基础。
Through changing the gravity center of face contour dynamically and combining with the traditional asm , the improved method overcomes the problem of modeling asm under fewer landmarks 通过充分利用面部轮廓标定点的信息,提出了一种将而部轮廓质心动态变化和传统主动形状模型相结合的策略,解决了在少量标定点条件下主动形状建模所遇到的问题。
It solves the problem of model order determination and model validation for multivariable processes . it improves model quality and reduces time for plant test and data analysis and reduces disturbance to unit operation during plant test 它避免了多变量过程辨识方法的模型阶次估计、模型验证的难点;与阶跃测试法相比,采用多通道测试信号,对装置生产的影响小,且允许操作工在测试期间进行操作。
3 ) we try to import the bayesian adaptation , which is widely used in speech recognition , into speaker verification . we use bayesian maximum a posteriori estimation training a speaker model from background model , to solve the problem of model miss matching in speaker verification system 3 )为了解决说话人确认中存在的模型不匹配问题,尝试将语音识别中的贝叶斯自适应算法引入到基于高斯混合统一背景模型的说话人确认系统。
This dissertation mainly discusses issues on the applications of wavelet analysis in the control of nonlinear systems . the main topics are : ( 1 ) the problem of modeling and identification of nonlinear systems in the high dimensional space using wavelet analysis is studied 本文对小波分析在非线性系统控制中应用的若干问题作了较深入地研究和探索,主要的研究内容包括: ( 1 )研究了小波分析在高维空间中对非线性系统建模的问题。