非負値行列分解の確率的生成モデルと�多チャネル音源分離への応用 (Generative model in nonnegative matrix factorization and its application to multichannel sound source separation) 1. 非負値行列分解の確率的生成モデルと 多チャネル音源分離への応用 Generative model in nonnegative matrix factorization and its application to multichannel sound source separation Daichi Kitamura Ph.D. Student Department of Informatics School of Multidisciplinary Sciences The Graduate