Learning Textual Entailment using SVMs and String Similarity Measures
http://delivery.acm.org/10.1145/1660000/1654547/p42-malakasiotis.pdf?ip=65.49.68.189&id=1654547&acc=OPEN&key=4D4702B0C3E38B35%2E4D4702B0C3E38B35%2E4D4702B0C3E38B35%2E6D218144511F3437&CFID=808315044&CFTOKEN=42134147&__acm__=1505221874_46723dcfb767197e3c158f707b8355e9
原文：http://www.cnblogs.com/yuanjiangw/p/7512323.html