Data-to-text Generation with Variational Sequential Planning Ratish Puduppully author Yao Fu author Mirella Lapata author 2022 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal puduppully-etal-2022-data 10.1162/tacl_a_00484 https://aclanthology.org/2022.tacl-1.40/ 2022 10 697 715