Table 3 PSNR and RSE comparison results for metal Zn under different missing rates.

From: A prediction model for soil heavy metal content based on improved tensor completion

Zn

20%

40%

60%

80%

PSNR

RSE

PSNR

RSE

PSNR

RSE

PSNR

RSE

C2F-STDCTV

32.514*

0.027*

32.379*

0.029*

30.259*

0.037*

29.894*

0.038*

STDCTV

28.976

0.043

28.259

0.052

26.935

0.059

26.017

0.068

STDC

26.879

0.046

24.539

0.072

24.008

0.076

21.741

0.098

HALRTC

32.412

0.029

30.966

0.034

28.075

0.047

22.698

0.087

LRTV-PDS

32.472

0.031

31.167

0.036

29.357

0.043

26.111

0.061

  1. Statistical significance was tested using a paired t-test; * indicates a statistically significant difference (p < 0.05) compared to the second-best method.
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