Learning Term-weighting Functions for Similarity Measures Wen-tau Yih author 2009-08 text Proceedings of the 2009 Conference on Empirical Methods in Natural Language Processing Philipp Koehn editor Rada Mihalcea editor Association for Computational Linguistics Singapore conference publication yih-2009-learning https://aclanthology.org/D09-1083/ 2009-08 793 802