A Basic Framework to Build a Test Collection for the Vietnamese Text Catergorization Viet Hoang-Anh author Thu Dinh-Thi-Phuong author Thang Huynh-Quyet author 2008 text Proceedings of the 6th Workshop on Asian Language Resources conference publication hoang-anh-etal-2008-basic https://aclanthology.org/I08-7019/ 2008