CNC lathe 1 CNC lathe tool 1 Fault root cause tracking 1 Information entropy 1 Lathe tools 1 Lathes 1 Moving window methods 1 Net transfer entropy 1 Numerical methods 1 Root cause 1 Signal acquisitions 1 Signal processing 1 Transfer entropy 1 article entropy 1 fault root cause tracking 1 information entropy 1 moving window method 1 net transfer entropy 1 probability 1 signal acquisition 1 theoretical study 1