@inproceedings{graphregularizednonnegativematrix,
  title = {Graph Regularized Nonnegative Matrix Factorization for Data Representation},
  author = {Deng Cai and Xiaofei He and Jiawei Han and Thomas S. Huang},
  year = {2011},
  booktitle = {IEEE Transactions on Pattern Analysis and Machine Intelligence 2011 8},
  url = {https://ieeexplore.ieee.org/document/5674058},
}