( 5 ) a novel pnn model with training algorithms is proposed for class conditional density estimation ( 5 )提出了一种新的类条件密度函数估计的pnn模型及其算法。
The result indicated that the wavelet estimator better than the kernel estimator in some conditions 其计算实例结果表明在样本量较大时，密度函数的小波估计较核估计好。
Speech separation algorithm based on laplace normal mixture distribution probability density function estimation 基于拉普拉斯正态混合分布概率密度函数估计的语音分离算法
Here , we will not discuss energy density function of stwf further , since fourier transform is a math issue only 的傅氏变换及能量密度函数均属数学问题，我们不在此做进一步的讨论。
Probability density function method for studying reconstructed attractor and detection of ventricular tachycardia and fibrillation 概率密度函数法研究重构吸引子并检测心动过速和心室纤颤
Furthermore , by the predicted stable random variables , the plot of joint stable density function of szsi and shci is provided 利用预测的稳定随机变量，得到了szsi和shci的联合稳定分布下密度函数的图示。
We can apply many good qualities of wavelet orthogonal series to estimate the condition probability density function of hmm ' s 我们利用小波正交级数的很多良好性质来估计隐马尔科夫模型中的条件概率密度函数。
For many practiced instances , the type of the probability density function is unknown . so density estimation is nonparametric estimation 对于很多实际情况， hmm密度函数所属类型并不知道，此时的密度估计就是典型的非参数估计问题。
The probability model for the initial time of corrosion is founded ; and the distribution type and the probability density function for the initial time of corrosion are obtained 通过建立腐蚀初始时间的概率模型,得出腐蚀初始时间的分布规律和概率密度函数。
However , for non - linear models and non - gaussian noise , such closed form expressions are almost impossible to obtain , and sequtial monte carlo method provides its approximation 这种方法的基本思想是产生服从后验分布的样本，并对其进行加权，以得到后验密度函数的近似解。
