Improving Machine Translation Quality Prediction with Syntactic Tree Kernels Christian Hardmeier author 2011-may 30–31 text Proceedings of the 15th Annual Conference of the European Association for Machine Translation Mikel L Forcada editor Heidi Depraetere editor Vincent Vandeghinste editor European Association for Machine Translation Leuven, Belgium conference publication hardmeier-2011-improving https://aclanthology.org/2011.eamt-1.32/ 2011-may 30–31