Primal svm Advantages 1) simple to implement, theoretically sound, and easy to customize to different tasks such as classification, regression, ranking and so forth 2)very fast, linear in the number of samples · Difficulty model selectionPrimal SVM • Advantages: 1) simple to implement, theoretically sound, and easy to customize to different tasks such as classification, regression, ranking and so forth. 2) very fast, linear in the number of samples • Difficulty model selection