Table 2 Correlation degree r of 5-day traffic flow of intersection 2.

From: Short-term traffic flow prediction research based on ICEEMDAN-MPE-PSO-DELM model

r

X21

X22

X23

X24

X25

X21

1

    

X22

0.908

1

   

X23

0.917

0.940

1

  

X24

0.895

0.926

0.926

1

 

X25

0.914

0.938

0.950

0.927

1

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