Learning Effective and Interpretable Semantic Models using Non-Negative Sparse Embedding Brian Murphy author Partha Talukdar author Tom Mitchell author 2012-12 text Proceedings of COLING 2012 Martin Kay editor Christian Boitet editor The COLING 2012 Organizing Committee Mumbai, India conference publication murphy-etal-2012-learning https://aclanthology.org/C12-1118/ 2012-12 1933 1950