@misc{oai:tsukuba.repo.nii.ac.jp:00055233,
 author = {伊藤, 寛祥},
 month = {},
 note = {2019},
 title = {A Study on Non-negative Matrix Factorization under Probability Constraints},
 year = {2020},
 yomi = {イトウ, ヒロヨシ}
}