@techreport{weko_144508_1,
   author	 = "Pannawit,Samathiyadikun and Atsuhiro,Takasu",
   title	 = "Item Age Effect Against Global User Preference in Latent Model of Recommendation System",
   year 	 = "2015",
   institution	 = "SOKENDAI (The Graduate University for Advanced Studies), SOKENDAI (The Graduate University for Advanced Studies)／National Institute of Informatics",
   number	 = "9",
   month	 = "jul"
}