Lakshmi Vikraman, Ali Montazeralghaem, Helia Hashemi, W. Bruce Croft, James Allan. Passage Similarity and Diversification in Non-factoid Question Answering. In Faegheh Hasibi, Yi Fang, Akiko Aizawa, editors, ICTIR '21: The 2021 ACM SIGIR International Conference on the Theory of Information Retrieval, Virtual Event, Canada, July 11, 2021. pages 271-280, ACM, 2021. [doi]
Abstract is missing.