All functions
fashion_test	Reproduced from fashion-mnist data
fashion_train	Reproduced from fashion-mnist data
fashion	Reproduced from fashion-mnist data
iris_test	Even-numbered rows of iris data
iris_train	Odd-numbered rows of iris data
rf_opt	Bayesian Optimization for Random Forest
svm_cv_opt	Bayesian Optimization for SVM
svm_opt	Bayesian Optimization for SVM
xgb_cv_opt	Bayesian Optimization for XGboost(Cross Validation)
xgb_opt	Bayesian Optimization for XGboost