UNL-French deconversion as transfer & generation from an interlingua with possible quality enhancement through offline human interaction Gilles Sérasset author Christian Boitet author 1999-sep 13-17 text Proceedings of Machine Translation Summit VII Singapore, Singapore conference publication serasset-boitet-1999-unl https://aclanthology.org/1999.mtsummit-1.33/ 1999-sep 13-17 220 228