Extracting Lexically Divergent Paraphrases from Twitter
Wei Xu, Alan Ritter, Chris Callison-Burch, William B. Dolan, Yangfeng Ji
Abstract
We present MultiP (Multi-instance Learning Paraphrase Model), a new model suited to identify paraphrases within the short messages on Twitter. We jointly model paraphrase relations between word and sentence pairs and assume only sentence-level annotations during learning. Using this principled latent variable model alone, we achieve the performance competitive with a state-of-the-art method which combines a latent space model with a feature-based supervised classifier. Our model also captures lexically divergent paraphrases that differ from yet complement previous methods; combining our model with previous work significantly outperforms the state-of-the-art. In addition, we present a novel annotation methodology that has allowed us to crowdsource a paraphrase corpus from Twitter. We make this new dataset available to the research community.- Anthology ID:
 - Q14-1034
 - Volume:
 - Transactions of the Association for Computational Linguistics, Volume 2
 - Month:
 - Year:
 - 2014
 - Address:
 - Cambridge, MA
 - Editors:
 - Dekang Lin, Michael Collins, Lillian Lee
 - Venue:
 - TACL
 - SIG:
 - Publisher:
 - MIT Press
 - Note:
 - Pages:
 - 435–448
 - Language:
 - URL:
 - https://aclanthology.org/Q14-1034
 - DOI:
 - 10.1162/tacl_a_00194
 - Cite (ACL):
 - Wei Xu, Alan Ritter, Chris Callison-Burch, William B. Dolan, and Yangfeng Ji. 2014. Extracting Lexically Divergent Paraphrases from Twitter. Transactions of the Association for Computational Linguistics, 2:435–448.
 - Cite (Informal):
 - Extracting Lexically Divergent Paraphrases from Twitter (Xu et al., TACL 2014)
 - PDF:
 - https://preview.aclanthology.org/ingest-acl-2023-videos/Q14-1034.pdf
 - Code
 - cocoxu/twitterparaphrase