“…Among existing feature selection algorithms, supervised feature selection algorithms are commonly employed to process the data with class labels, in which there are some representatives, such as feature selection algorithm with feature selection algorithm based on mRMR [32], sparsity-inducing norms [14], feature selection algorithm based on t-test [44,45], feature subset selection algorithm with ordinal optimization [5] and feature selection algorithm based on neighborhood multi-granulation fusion [25]. For the investigation of feature selection, one of critical issues is how to select feature subset, and filters, wrappers and embedded methods have been generally recognized as the most popular methods to solve the issue [2,8].…”