Machine Learning : Cross Validation Technique
Cross validation is one way to avoid over fitting of data in machine learning . Cross validation works in such way : 1st Way : One Round Cross Validation : in this data is divided into 50-50 portion ,one portion is for test set , one portion is validation of model that is prepared with the help of 50% of data . Leave one out cross validation(LOOCV) : In this ,we leave one data set for cross validation and rest data set for use for training of model . k-fold cross validation : In this k data set are used to trained the model ,while k-1 are using for validate or test the model .