Learning to Paraphrase: An Unsupervised Approach Using Multiple-Sequence Alignment.

Regina Barzilay Lillian Lee Learning to Paraphrase: An Unsupervised Approach Using Multiple-Sequence Alignment. 2003 HLT-NAACL http://acl.ldc.upenn.edu/N/N03/N03-1003.pdf db/conf/naacl/naacl2003.html#BarzilayL03