The following publications are possibly variants of this publication:
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- Nonnegative sparse locality preserving hashingCong Liu, Hefei Ling, Fuhao Zou, Mudar Sarem, Lingyu Yan. isci, 281:714-725, 2014. [doi]
- Compressed Nonnegative Sparse CodingFei Wang, Ping Li. icdm 2010: 1103-1108 [doi]