Title
A Task in a Suit and a Tie: Paraphrase Generation with Semantic Augmentation
Abstract
Paraphrasing is rooted in semantics. We show the effectiveness of transformers (Vaswani et al. 2017) for paraphrase generation and further improvements by incorporating Prop-Bank labels via a multi-encoder. Evaluating on MSCOCO and WikiAnswers, we find that transformers are fast and effective, and that semantic augmentation for both transformers and LSTMs leads to sizable 2-3 point gains in BLEU, METEOR and TER. More importantly, we find surprisingly large gains on human evaluations compared to previous models. Nevertheless, manual inspection of generated paraphrases reveals ample room for improvement: even our best model produces human-acceptable paraphrases for only 28% of captions from the CHIA dataset (Sharma et al. 2018), and it fails spectacularly on sentences from Wikipedia. Overall, these results point to the potential for incorporating semantics in the task while highlighting the need for stronger evaluation.
Year
Venue
Field
2018
national conference on artificial intelligence
Computer science,PropBank,Paraphrase,Natural language processing,Artificial intelligence,Semantics
DocType
Volume
ISSN
Journal
abs/1811.00119
Association for the Advancement of Artificial Intelligence (AAAI) 2019
Citations 
PageRank 
References 
0
0.34
0
Authors
4
Name
Order
Citations
PageRank
Su Wang113.73
Rahul Gupta200.34
Nancy Chang342.11
Jason Baldridge493369.95