Fig. 1
From: FeatureSelect: a software for feature selection based on machine learning approaches
Classification of the related works. They have been categorized into five classes, including: (i) Filter method which scores features and then selects them. (ii) Wrapper method which scores a subset of features based on a learner performance. (iii) Embedded method which selects features based on the order that a learner selects them. (iv) Online method which is based online tools. (V) Hybrid method which combines different methods in order to acquire better results