V.I.T.university Chennai India;
Department of Mechanical Engineering School of Mechanical and Building Sciences V.I.T University;
V.I.T.university Chennai India;
N.I.T.Karnataka Srinivasanagar Surathkal Mangalore Karnataka India;
I.I.I.T.D.&M.Jabalpur Khamaria Jabalpur India;
K-star; k-nearest neighborhood; k-NN; machine learning approach; conditionmonitoring; fault diagnosis; roller bearing; decision tree algorithm; J-48; random treealgorithm; decision making; two-layer feature selection; sound signal; statistical features;