A robust PET image reconstruction using constrained non-negative matrix factorization. - Kazuya Kawai; Junya Yamada; Hidekata Hontani; Tatsuya Yokota; Muneyuki Sakata; Yuichi Kimura (APSIPA, 2017)

Simultaneous PET Image Reconstruction and Feature Extraction Method using Non-negative, Smooth, and Sparse Matrix Factorization. - Kazuya Kawai; Hidekata Hontani; Tatsuya Yokota; Muneyuki Sakata; Yuichi Kimura (APSIPA, 2018)

Concepts and requirements of IoT networks using IoT Data Exchange Platform toward International standards. - Tetsuya Yokotani; Kazuya Kawai (CSCN, 2019)

Dynamic PET Image Reconstruction Using Nonnegative Matrix Factorization Incorporated With Deep Image Prior. - Tatsuya Yokota; Kazuya Kawai; Muneyuki Sakata; Yuichi Kimura; Hidekata Hontani (ICCV, 2019)