├── README.md ├── code ├── machine-learning-ex1.zip ├── machine-learning-ex1 │ ├── ex1.pdf │ └── ex1 │ │ ├── computeCost.m │ │ ├── computeCostMulti.m │ │ ├── ex1.m │ │ ├── ex1_multi.m │ │ ├── ex1data1.txt │ │ ├── ex1data2.txt │ │ ├── featureNormalize.m │ │ ├── gradientDescent.m │ │ ├── gradientDescentMulti.m │ │ ├── lib │ │ ├── jsonlab │ │ │ ├── AUTHORS.txt │ │ │ ├── ChangeLog.txt │ │ │ ├── LICENSE_BSD.txt │ │ │ ├── README.txt │ │ │ ├── jsonopt.m │ │ │ ├── loadjson.m │ │ │ ├── loadubjson.m │ │ │ ├── mergestruct.m │ │ │ ├── savejson.m │ │ │ ├── saveubjson.m │ │ │ └── varargin2struct.m │ │ ├── makeValidFieldName.m │ │ └── submitWithConfiguration.m │ │ ├── normalEqn.m │ │ ├── plotData.m │ │ ├── submit.m │ │ └── warmUpExercise.m ├── machine-learning-ex2.zip ├── machine-learning-ex2 │ ├── ex2.pdf │ └── ex2 │ │ ├── costFunction.m │ │ ├── costFunctionReg.m │ │ ├── ex2.m │ │ ├── ex2_reg.m │ │ ├── ex2data1.txt │ │ ├── ex2data2.txt │ │ ├── lib │ │ ├── jsonlab │ │ │ ├── AUTHORS.txt │ │ │ ├── ChangeLog.txt │ │ │ ├── LICENSE_BSD.txt │ │ │ ├── README.txt │ │ │ ├── jsonopt.m │ │ │ ├── loadjson.m │ │ │ ├── loadubjson.m │ │ │ ├── mergestruct.m │ │ │ ├── savejson.m │ │ │ ├── saveubjson.m │ │ │ └── varargin2struct.m │ │ ├── makeValidFieldName.m │ │ └── submitWithConfiguration.m │ │ ├── mapFeature.m │ │ ├── plotData.m │ │ ├── plotDecisionBoundary.m │ │ ├── predict.m │ │ ├── sigmoid.m │ │ └── submit.m ├── machine-learning-ex3.zip ├── machine-learning-ex3 │ ├── ex3.pdf │ └── ex3 │ │ ├── displayData.m │ │ ├── ex3.m │ │ ├── ex3_nn.m │ │ ├── ex3data1.mat │ │ ├── ex3weights.mat │ │ ├── fmincg.m │ │ ├── lib │ │ ├── jsonlab │ │ │ ├── AUTHORS.txt │ │ │ ├── ChangeLog.txt │ │ │ ├── LICENSE_BSD.txt │ │ │ ├── README.txt │ │ │ ├── jsonopt.m │ │ │ ├── loadjson.m │ │ │ ├── loadubjson.m │ │ │ ├── mergestruct.m │ │ │ ├── savejson.m │ │ │ ├── saveubjson.m │ │ │ └── varargin2struct.m │ │ ├── makeValidFieldName.m │ │ └── submitWithConfiguration.m │ │ ├── lrCostFunction.m │ │ ├── oneVsAll.m │ │ ├── predict.m │ │ ├── predictOneVsAll.m │ │ ├── sigmoid.m │ │ └── submit.m ├── machine-learning-ex4.zip ├── machine-learning-ex4 │ ├── ex4.pdf │ └── ex4 │ │ ├── checkNNGradients.m │ │ ├── computeNumericalGradient.m │ │ ├── debugInitializeWeights.m │ │ ├── displayData.m │ │ ├── ex4.m │ │ ├── ex4data1.mat │ │ ├── ex4weights.mat │ │ ├── fmincg.m │ │ ├── lib │ │ ├── jsonlab │ │ │ ├── AUTHORS.txt │ │ │ ├── ChangeLog.txt │ │ │ ├── LICENSE_BSD.txt │ │ │ ├── README.txt │ │ │ ├── jsonopt.m │ │ │ ├── loadjson.m │ │ │ ├── loadubjson.m │ │ │ ├── mergestruct.m │ │ │ ├── savejson.m │ │ │ ├── saveubjson.m │ │ │ └── varargin2struct.m │ │ ├── makeValidFieldName.m │ │ └── submitWithConfiguration.m │ │ ├── nnCostFunction.m │ │ ├── predict.m │ │ ├── randInitializeWeights.m │ │ ├── sigmoid.m │ │ ├── sigmoidGradient.m │ │ └── submit.m ├── machine-learning-ex5.zip ├── machine-learning-ex5 │ ├── ex5.pdf │ └── ex5 │ │ ├── ex5.m │ │ ├── ex5data1.mat │ │ ├── featureNormalize.m │ │ ├── fmincg.m │ │ ├── learningCurve.m │ │ ├── lib │ │ ├── jsonlab │ │ │ ├── AUTHORS.txt │ │ │ ├── ChangeLog.txt │ │ │ ├── LICENSE_BSD.txt │ │ │ ├── README.txt │ │ │ ├── jsonopt.m │ │ │ ├── loadjson.m │ │ │ ├── loadubjson.m │ │ │ ├── mergestruct.m │ │ │ ├── savejson.m │ │ │ ├── saveubjson.m │ │ │ └── varargin2struct.m │ │ ├── makeValidFieldName.m │ │ └── submitWithConfiguration.m │ │ ├── linearRegCostFunction.m │ │ ├── plotFit.m │ │ ├── polyFeatures.m │ │ ├── submit.m │ │ ├── trainLinearReg.m │ │ └── validationCurve.m ├── machine-learning-ex6.zip ├── machine-learning-ex6 │ ├── ex6.pdf │ └── ex6 │ │ ├── dataset3Params.m │ │ ├── emailFeatures.m │ │ ├── emailSample1.txt │ │ ├── emailSample2.txt │ │ ├── ex6.m │ │ ├── ex6_spam.m │ │ ├── ex6data1.mat │ │ ├── ex6data2.mat │ │ ├── ex6data3.mat │ │ ├── gaussianKernel.m │ │ ├── getVocabList.m │ │ ├── lib │ │ ├── jsonlab │ │ │ ├── AUTHORS.txt │ │ │ ├── ChangeLog.txt │ │ │ ├── LICENSE_BSD.txt │ │ │ ├── README.txt │ │ │ ├── jsonopt.m │ │ │ ├── loadjson.m │ │ │ ├── loadubjson.m │ │ │ ├── mergestruct.m │ │ │ ├── savejson.m │ │ │ ├── saveubjson.m │ │ │ └── varargin2struct.m │ │ ├── makeValidFieldName.m │ │ └── submitWithConfiguration.m │ │ ├── linearKernel.m │ │ ├── plotData.m │ │ ├── porterStemmer.m │ │ ├── processEmail.m │ │ ├── readFile.m │ │ ├── spamSample1.txt │ │ ├── spamSample2.txt │ │ ├── spamTest.mat │ │ ├── spamTrain.mat │ │ ├── submit.m │ │ ├── svmPredict.m │ │ ├── svmTrain.m │ │ ├── visualizeBoundary.m │ │ ├── visualizeBoundaryLinear.m │ │ └── vocab.txt ├── machine-learning-ex7.zip ├── machine-learning-ex7 │ ├── ex7.pdf │ └── ex7 │ │ ├── bird_small.mat │ │ ├── bird_small.png │ │ ├── computeCentroids.m │ │ ├── displayData.m │ │ ├── drawLine.m │ │ ├── ex7.m │ │ ├── ex7_pca.m │ │ ├── ex7data1.mat │ │ ├── ex7data2.mat │ │ ├── ex7faces.mat │ │ ├── featureNormalize.m │ │ ├── findClosestCentroids.m │ │ ├── kMeansInitCentroids.m │ │ ├── lib │ │ ├── jsonlab │ │ │ ├── AUTHORS.txt │ │ │ ├── ChangeLog.txt │ │ │ ├── LICENSE_BSD.txt │ │ │ ├── README.txt │ │ │ ├── jsonopt.m │ │ │ ├── loadjson.m │ │ │ ├── loadubjson.m │ │ │ ├── mergestruct.m │ │ │ ├── savejson.m │ │ │ ├── saveubjson.m │ │ │ └── varargin2struct.m │ │ ├── makeValidFieldName.m │ │ └── submitWithConfiguration.m │ │ ├── pca.m │ │ ├── plotDataPoints.m │ │ ├── plotProgresskMeans.m │ │ ├── projectData.m │ │ ├── recoverData.m │ │ ├── runkMeans.m │ │ └── submit.m ├── machine-learning-ex8.zip └── machine-learning-ex8 │ ├── ex8.pdf │ └── ex8 │ ├── checkCostFunction.m │ ├── cofiCostFunc.m │ ├── computeNumericalGradient.m │ ├── estimateGaussian.m │ ├── ex8.m │ ├── ex8_cofi.m │ ├── ex8_movieParams.mat │ ├── ex8_movies.mat │ ├── ex8data1.mat │ ├── ex8data2.mat │ ├── fmincg.m │ ├── lib │ ├── jsonlab │ │ ├── AUTHORS.txt │ │ ├── ChangeLog.txt │ │ ├── LICENSE_BSD.txt │ │ ├── README.txt │ │ ├── jsonopt.m │ │ ├── loadjson.m │ │ ├── loadubjson.m │ │ ├── mergestruct.m │ │ ├── savejson.m │ │ ├── saveubjson.m │ │ └── varargin2struct.m │ ├── makeValidFieldName.m │ └── 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