Zhu, Xiaoke, Xiao-Yuan Jing, Fei Wu, Di Wu, Li Cheng, Sen Li, and Ruimin Hu. 2017. “Multi-Kernel Low-Rank Dictionary Pair Learning for Multiple Features Based Image Classification”. Proceedings of the AAAI Conference on Artificial Intelligence 31 (1). https://doi.org/10.1609/aaai.v31i1.10840.