@techreport{weko_66939_1,
   author	 = "Masashi,Sugiyama and Ichiro,Takeuchi and Taiji,Suzuki and Takafumi,Kanamori and Hirotaka,Hachiya and Daisuke,Okanohara",
   title	 = "Conditional Density Estimation Based on Density Ratio Estimation",
   year 	 = "2009",
   institution	 = "Tokyo Institute of Technology / Japan Science and Technology Agency, Nagoya Institute of Technology, The University of Tokyo, Nagoya University, Tokyo Institute of Technology, The University of Tokyo",
   number	 = "4",
   month	 = "dec"
}