states) to test the performance.

XJTU-SY Bearing Dataset
-----------------------

XJTU-SY bearing datasets were provided by the Institute of Design Science and Basic Component at Xi’an Jiaotong University and the Changxing Sumyoung Technology Co. [@XJTU; @wang2018hybrid]. XJTU-SY datasets consisted of fifteen bearings run-to-failure data under three different working conditions. Data were collected at 2.56 kHz. A total of 32768 data points were recorded for each sampling, and the sampling period is equal to one minute. The details of bearing lifetime and fault elements are shown in Table \[Tab\_4\]. In this paper, we use all the data described in Table \[Tab\_5\] and the total number of classes is fifteen. It should be noticed that we use collected data at the end of run-to-failure experiments.

\[Tab\_4\]

   Condition       File       Lifetime                     Fault element
  ----------- -------------- ---------- ---------------------------------------------------
               Bearing 1\_1   2h 3min                       Outer ring
               Bearing 1\_2   2h 41min                      Outer ring
               Bearing 1\_3   2h 38min                      Outer ring
               Bearing 1\_4   2h 2min                          Cage
               Bearing 1\_5    52 min                Inner ring and Outer ring
               Bearing 2\_1   8h 11min                      Inner ring
               Bearing 2\_2   2h 41min                      Outer ring
               Bearing 2\_3   8h 53min                         Cage
               Bearing 2\_4    42min                        Outer ring
               Bearing 2\_5   5h 39min                      Outer ring
                                                            Outer ring
                                         Inner ring, Rolling element, Cage, and 