Diff-Explainer: Differentiable Convex Optimization for Explainable Multi-hop Inference Mokanarangan Thayaparan author Marco Valentino author Deborah Ferreira author Julia Rozanova author André Freitas author 2022 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal thayaparan-etal-2022-diff 10.1162/tacl_a_00508 https://aclanthology.org/2022.tacl-1.64/ 2022 10 1103 1119