Title
Learning to Paraphrase for Question Answering.
Abstract
Question answering (QA) systems are sensitive to the many different ways natural language expresses the same information need. In this paper we turn to paraphrases as a means of capturing this knowledge and present a general framework which learns felicitous paraphrases for various QA tasks. Our method is trained end-to-end using question-answer pairs as a supervision signal. A question and its paraphrases serve as input to a neural scoring model which assigns higher weights to linguistic expressions most likely to yield correct answers. We evaluate our approach on QA over Freebase and answer sentence selection. Experimental results on three datasets show that our framework consistently improves performance, achieving competitive results despite the use of simple QA models.
Year
DOI
Venue
2017
10.18653/v1/d17-1091
empirical methods in natural language processing
DocType
Volume
Citations 
Journal
abs/1708.06022
13
PageRank 
References 
Authors
0.55
27
4
Name
Order
Citations
PageRank
Li Dong158231.86
Jonathan Mallinson2222.04
Siva Reddy334521.37
Mirella Lapata45973369.52