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modelbasedonspectrumprediction
文章展示了基于高斯混合模型的语音频谱预测方法。频谱预测可能在传包过程中预防丢包这方面起到大作用。期望最大化算法用两倍或三倍的连续语音因素来测试模型。模型被用来设计第一,儿等指令预测量。预测表用频谱分配状态来估计并和一个简单的参考模型对比。最好的预测表得到一个平均频率扭曲值是0.46dB小于参考模型(This paper presents methods for speech spectrum prediction based
on Gaussian mixture models. Spectrum prediction may be useful in a packet transmission system where the sensitivity to packet losses is a major problem.
Models of speech are trained by the Expectation Maximization algorithm using pairs, triples etc. of consecutive cepstral vectors.
The models are used to design first, second etc. order predictors.
The prediction schemes are evaluated using the spectral distortion criterion and compared to a simple reference method. The
best prediction scheme obtains an average spectral distortion that
is 0.46 dB less than for the reference method. )
- 2010-07-06 16:48:31下载
- 积分:1
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FeatureSelection
Feature Selection using Matlab.
The DEMO includes 5 feature selection algorithms:
• Sequential Forward Selection (SFS)
• Sequential Floating Forward Selection (SFFS)
• Sequential Backward Selection (SBS)
• Sequential Floating Backward Selection (SFBS)
• ReliefF
Two CCR estimation methods:
• Cross-validation
• Resubstitution
After selecting the best feature subset, the classifier obtained can be used for classifying any pattern.
Figure: Upper panel is the pattern x feature matrix
Lower panel left are the features selected
Lower panel right is the CCR curve during feature selection steps
Right panel is the classification results of some patterns.
This software was developed using Matlab 7.5 and Windows XP.
Copyright: D. Ververidis and C.Kotropoulos
AIIA Lab, Thessaloniki, Greece,
jimver@aiia.csd.auth.gr
costas@aiia.csd.auth.gr
- 2010-11-22 15:53:24下载
- 积分:1
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cengcifenxi
采用matlab编写的,基于层次分析法求解权重的例子,可以输入互反矩阵,直接求解权重(Using matlab prepared, based on the weight of AHP for solving the example, you can enter reciprocal matrix, directly solve the weights)
- 2013-11-07 21:08:29下载
- 积分:1
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piu_v73
多机电力系统仿真及其潮流计算,包括邓氏关联度、绝对关联度、斜率关联度、改进绝对关联度,包含光伏电池模块、MPPT模块、BOOST模块、逆变模块。( Multi-machine power system simulation and flow calculation, Including Deng s correlation, absolute correlation, correlation of slope, improved absolute correlation, PV modules contain, MPPT module, BOOST module, inverter module.)
- 2020-11-07 22:09:48下载
- 积分:1
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mimoZF和 mmse 的 预编码的matlab仿真
mimoZF和 mmse 的 预编码的matlab仿真,直接可以运行 每一句都有中文注释。mimoZF和 mmse 的 预编码的matlab仿真,直接可以运行 每一句都有中文注释。
- 2022-08-19 07:02:44下载
- 积分:1
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dynamicfeedforwardcontrol
说明: 由simulink搭建的动态前馈控制系统模型(Simulink set up by the dynamic feedforward control system model)
- 2010-04-23 16:38:13下载
- 积分:1
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root_L
非zplane,实现零极点图的绘制,用root求零极点,用plot画坐标(Non zplane, zero pole diagram drawing, seeking zero-pole with root, with a plot coordinates painting)
- 2014-11-25 00:54:33下载
- 积分:1
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ABC_MATLAB_web
人工蜂群算法的源代码,很好用,可以自己个别的修改下(Artificial bee colony algorithm source code, very good, and modifications can be their own individual)
- 2012-11-24 12:06:20下载
- 积分:1
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Dbscan
DBSCAN算法是一种基于密度的算法,进行DBSCAN聚类(simple DBSCAN clustering algorithm,which is based on density.)
- 2012-12-04 18:28:43下载
- 积分:1
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simpson
Simpson’s Rule Intgral
- 2014-01-05 22:57:42下载
- 积分:1