路喵甲自學紀錄：AI 與其他有的沒的

Deep Learning Toolbox https://www.mathworks.com/help/deeplearning/index.html https://www.mathworks.com/products/deep-learning.html MATLAB與深度學習 https://www.terasoft.com.tw/matlab-simulink/solutions/deep-learning/ Neural Network Toolbox, 類神經網路工具箱 https://www.terasoft.com.tw/matlab-simulink/products/neural-network.html Getting Started with Deep Learning Toolbox https://www.mathworks.com/examples/deep-learning/category/getting-started-with-deep-learning-toolbox

cat Concatenate arrays along specified dimension https://www.mathworks.com/help/matlab/ref/cat.html size Array size https://www.mathworks.com/help/matlab/ref/size.html sqrt Square root https://www.mathworks.com/help/matlab/ref/sqrt.html pwd Identify current folder https://www.mathworks.com/help/matlab/ref/pwd.html How to return files with a specific extension using 'dir'? https://www.mathworks.com/matlabcentral/answers/147197-how-to-return-files-with-a-specific-extension-using-dir isfolder Determine if input is folder https://www.mathworks.com/help/matlab/ref/isfolder.html dir List folder contents https://www.mathworks.com/help/matlab/ref/dir.html Can you use DIR to list files in subfolders ? https://www.mathworks.com/matlabcentral/answers/32038-can-you-use-dir-to-list-files-in-subfolders list the subfolders in a folder - Matlab (only subfolders, not files) https://stackoverflow.com/questions/8748976/list-the-subfolders-in-a-folder-matlab-only-...

稀疏表示（Sparse Representations） 用较少的基本信号的线性组合来表达大部分或者全部的原始信号 https://blog.csdn.net/bbbeoy/article/details/80889386 NMF 非负矩阵分解 -- 原理与应用 NMF的思想：V=WH（W权重矩阵、H特征矩阵、V原矩阵），通过计算从原矩阵提取权重和特征两个不同的矩阵出来。属于一个无监督学习的算法，其中限制条件就是W和H中的所有元素都要大于0 https://blog.csdn.net/qq_26225295/article/details/51211529 【数据挖掘】特征抽取之NMF https://blog.csdn.net/sprayabc/article/details/9918393 Python机器学习应用 | 降维——NMF方法及实例 https://blog.csdn.net/JinbaoSite/article/details/73928729 白话NMF（Non-negative Matrix Factorization）——Matlab 实现 http://liuzhiqiangruc.iteye.com/blog/2095116 Matlab非负矩阵分解（NMF） http://www.ilovematlab.cn/thread-47408-1-1.html nnmf https://www.mathworks.com/help/stats/nnmf.html

使用 Anaconda 的好處在於，可以透過環境來安裝不同版本的 python 與 pkg，達到各版本的測試 但是 Matlab 如何調用不同環境下的 python 來使用呢？ 原本是簡單的 system call，例如： cmd = sprintf('python ./test.py'); system(cmd); 變成要使用絕對路徑： cmd = sprintf('C:/Users/<user name>/Anaconda3/envs/tensorflow/pythonw ./test.py'); system(cmd); 如果常用的話就直接添加到 path 囉，這邊就不贅述

Open SLR：Open Speech and Language Resources http://www.openslr.org/index.html kaldi-asr http://kaldi-asr.org Github: kaldi https://github.com/kaldi-asr/kaldi Day 25：自動語音識別(Automatic Speech Recognition) -- 觀念與實踐 https://ithelp.ithome.com.tw/articles/10195763 Kaldi语音识别 http://ftli.farbox.com/post/kaldizhong-wen-shi-bie Increase power of signal in Matlab https://dsp.stackexchange.com/questions/27031/increase-power-of-signal-in-matlab How do I plot the spectrogram of a wav file? https://dsp.stackexchange.com/questions/2696/how-do-i-plot-the-spectrogram-of-a-wav-file How can I plot a 3D graph of a given Laplace Transform of a function? https://dsp.stackexchange.com/questions/40628/how-can-i-plot-a-3d-graph-of-a-given-laplace-transform-of-a-function Spectrogram example in Matlab https://stackoverflow.com/questions/9726640/spectrogram-example-in-matlab How do I plot a 3-D graph of an audio signal that show whole signal amplitude VS time(s) VS frequency(hz)? ht...