Linna Zhang, Shiming Chen, Yigang Cen, Yi Cen, Hengyou Wang, Ming Zeng, Vol. 13, No. 12, December 31, 2019
10.3837/tiis.2019.12.014

• Rail surface inspection
• Low-rank matrix recovery
• 2-1 norm
• block sparsity

Xingjian Gu, Xiangbo Shu, Shougang Ren, Huanliang Xu, Vol. 12, No. 7, July 30, 2018
10.3837/tiis.2018.07.012

• sparse projection
• slow feature discriminant analysis
• feature extraction
• L2
• 1 norm