Improving Passage Re-Ranking with Word N-Gram Aware Coattention Encoder Chaitanya Alaparthi author Manish Shrivastava author 2020-12 text Proceedings of the 17th International Conference on Natural Language Processing (ICON) Pushpak Bhattacharyya editor Dipti Misra Sharma editor Rajeev Sangal editor NLP Association of India (NLPAI) Indian Institute of Technology Patna, Patna, India conference publication alaparthi-shrivastava-2020-improving https://aclanthology.org/2020.icon-main.21/ 2020-12 161 169