Targeted Sentiment to Understand Student Comments Charles Welch author Rada Mihalcea author 2016-12 text Proceedings of COLING 2016, the 26th International Conference on Computational Linguistics: Technical Papers Yuji Matsumoto editor Rashmi Prasad editor The COLING 2016 Organizing Committee Osaka, Japan conference publication welch-mihalcea-2016-targeted https://aclanthology.org/C16-1233/ 2016-12 2471 2481