Integrating Symmetric Nonnegative Matrix Factorization and Normalized Cut Spectral Clustering. - Zhichen Xia; Chris H. Q. Ding (ICDM Workshops, 2010)

Robust Kernel Nonnegative Matrix Factorization. - Zhichen Xia; Chris H. Q. Ding; Edmond Chow (ICDM Workshops, 2012)