@InProceedings{wang-zhao-lu:2011:IJCNLP-2011, author = {Wang, Xiao-lin and Zhao, Hai and Lu, Bao-Liang}, title = {Enhance Top-down method with Meta-Classification for Very Large-scale Hierarchical Classification}, booktitle = {Proceedings of 5th International Joint Conference on Natural Language Processing}, month = {November}, year = {2011}, address = {Chiang Mai, Thailand}, publisher = {Asian Federation of Natural Language Processing}, pages = {1089--1097}, url = {http://www.aclweb.org/anthology/I11-1122} }