Classification of Research Papers into a Patent Classification System Using Two Translation Models Hidetsugu Nanba author Toshiyuki Takezawa author 2009-08 text Proceedings of the 2009 Workshop on Text and Citation Analysis for Scholarly Digital Libraries (NLPIR4DL) Min-Yen Kan editor Simone Teufel editor Association for Computational Linguistics Suntec City, Singapore conference publication nanba-takezawa-2009-classification https://aclanthology.org/W09-3604/ 2009-08 27 35