Extension of TSVM to Multi-Class and Hierarchical Text Classification Problems With General Losses Sathiya Keerthi Selvaraj author Sundararajan Sellamanickam author Shirish Shevade author 2012-12 text Proceedings of COLING 2012: Posters Martin Kay editor Christian Boitet editor The COLING 2012 Organizing Committee Mumbai, India conference publication selvaraj-etal-2012-extension https://aclanthology.org/C12-2106/ 2012-12 1091 1100