The authors would like to state the following corrections to their article (Roushangar et al. 2018):
- 1.
Page 733 Column 1, line 14, the phrase ‘input layer of k-means’ should be changed to ‘input layer of k-means and SOM clustering techniques’.
- 2.
Page 739, Column 1, line 19, the phrase ‘High’ should be changed to ‘Low’.
- 3.
Page 739, Column 1, line 19, the phrase ‘for the scale 9–13 months’ should be changed to ‘for the scales up to 8-months’.
- 4.
Page 739, Column 2, line 1, the phrase ‘High’ should be changed to ‘Low’.
- 5.
Page 739, Column 2, line 2, the phrase ‘scale 8–16 months’ should be changed to ‘for the scales up to 8-months’.
- 6.
Page 740, Column 1, line 1, the phrase ‘downward’ should be changed to ‘upward’.
- 7.
Page 740, Column 1, line 4, the phrase ‘upward’ should be changed to ‘downward’.