@conference {679614,
	title = {Neural nonnegative matrix factorization for hierarchical multilayer topic modeling},
	booktitle = {2019 IEEE 8th International Workshop on Computational Advances in Multi-Sensor Adaptive Processing (CAMSAP)},
	year = {2019},
	url = {https://ieeexplore.ieee.org/abstract/document/9022678},
	author = {Mengdi Gao and Jamie Haddock and Denali Molitor and Deanna Needell and Eli Sadovnik and Tyler Will and Runyu Zhang}
}
