MKQA: A Linguistically Diverse Benchmark for Multilingual Open Domain Question Answering Shayne Longpre author Yi Lu author Joachim Daiber author 2021 text journal article Transactions of the Association for Computational Linguistics continuing MIT Press Cambridge, MA periodical academic journal longpre-etal-2021-mkqa 10.1162/tacl_a_00433 https://aclanthology.org/2021.tacl-1.82/ 2021 9 1389 1406