Improving Opinion-Target Extraction with Character-Level Word Embeddings Soufian Jebbara author Philipp Cimiano author 2017-09 text Proceedings of the First Workshop on Subword and Character Level Models in NLP Manaal Faruqui editor Hinrich Schuetze editor Isabel Trancoso editor Yadollah Yaghoobzadeh editor Association for Computational Linguistics Copenhagen, Denmark conference publication jebbara-cimiano-2017-improving 10.18653/v1/W17-4124 https://aclanthology.org/W17-4124/ 2017-09 159 167