@techreport{weko_190342_1,
   author	 = "Shuang,Song and Tomohisa,Yamashita and Hidenori,Kawamura and Hajime,Saito",
   title	 = "Towards a New Investigation Method for Tourists' Needs: Dictionary-based Aspect-level Review Classification",
   year 	 = "2018",
   institution	 = "Hokkaido University, Hokkaido University, Hokkaido University, Hokkaido Information University",
   number	 = "5",
   month	 = "jun"
}