User choice as an evaluation metric for web translation in cross language instant messaging applications William Ogden author Ron Zacharski author Sieun An author Yuki Ishikawa author 2009-aug 26-30 text Proceedings of Machine Translation Summit XII: Papers Ottawa, Canada conference publication ogden-etal-2009-user https://aclanthology.org/2009.mtsummit-papers.11/ 2009-aug 26-30