@techreport{weko_145014_1,
   author	 = "内山,俊郎",
   title	 = "非負値行列因子分解の高精度化とPLSAヘの応用",
   year 	 = "2015",
   institution	 = "北海道情報大学経営情報学部システム情報学科",
   number	 = "21",
   month	 = "sep"
}