Document Similarity Measures to Distinguish Native vs. Non-Native Essay Writers Olga Gurevich author Paul Deane author 2007-04 text Human Language Technologies 2007: The Conference of the North American Chapter of the Association for Computational Linguistics; Companion Volume, Short Papers Candace Sidner editor Tanja Schultz editor Matthew Stone editor ChengXiang Zhai editor Association for Computational Linguistics Rochester, New York conference publication gurevich-deane-2007-document https://aclanthology.org/N07-2013/ 2007-04 49 52