Proceedings of the CoNLL–SIGMORPHON 2018 Shared Task: Universal Morphological Reinflection

This volume contains the system description papers associated with the CoNLL-SIGMORPHON shared task in morphological reinflection held at CoNLL 2018, in Brussels, Belgium. This is the second in a two-year series of shared tasks that address supervised learning of morphology. The origin of these two tasks was the SIGMORPHON shared task in 2016, which was subsequently expanded in both 2017 and 2018, called the CoNLL-SIGMORPHON shared tasks. While the first two iterations focused on learning inflectional patterns from examples, we this year introduced a new task similar to a cloze test—a format familiar from L2-learner exams—where participants we asked to inflect words in their sentential context in a morphosyntactically appropriate way.To support the inflection task 1 this year, we collected and curated inflection table data from 103 languages, representing a typologically and genealogically diverse data set against which to evaluate performance of the systems. We evaluated the ability to learn to inflect nouns, andjectives, and verbs from their lemmata (citation forms) into a desired target form.