Table 7 NMF mean prediction test errors and the associated standard errors for simulation with zero-inflated weight matrix

+∞

3 types

0/0

0.0048/0.0016

0.0158/0.0023

4

0/0

0.005/0.0016

0.0154/0.0023

2

0/0

0.005/0.0016

0.015/0.0024

1

0/0

0.005/0.0016

0.0148/0.0021

+∞

6 types

0.0016/0.0009

0.0062/0.0017

0.0148/0.0025

4

0.0016/0.0009

0.0058/0.0076

0.0144/0.0024

2

0.0014/0.0008

0.0066/0.0018

0.0148/0.0024

1

0.0018/0.0010

0.0062/0.0016

0.0144/0.0025

+∞

9 types

0.0033/0.0013

0.0068/0.0017

0.0148/0.0024

4

0.011/0.0018

0.0058/0.0015

0.0134/0.0022

2

0.0036/0.0013

0.0066/0.0015

0.0142/0.0026

1

0.0032/0.0011

0.0078/0.0024

0.0156/0.0023