GAPX: GeneralizedAutoregressive Paraphrase-IdentificationX

Paraphrases are sentences or phrases that convey the same meaning using different wording, and is fundamental to the understanding of languages [7]. Paraphrase Identification is a well-studied task of identifying if a given pair of sentences has the same meaning [51, 47, 56, 57, 31], and has many important downstream applications such as machine translation [61, 44, 40, 27], and question-answering[11,35].