Title
Adversarial Training for Community Question Answer Selection Based on Multi-Scale Matching
Abstract
Community-based question answering (CQA) websites represent an important source of information. As a result, the problem of matching the most valuable answers to their corresponding questions has become an increasingly popular research topic. We frame this task as a binary (relevant/irrelevant) classification problem, and present an adversarial training framework to alleviate label imbalance issue. We employ a generative model to iteratively sample a subset of challenging negative samples to fool our classification model. Both models are alternatively optimized using REINFORCE algorithm. The proposed method is completely different from previous ones, where negative samples in training set are directly used or uniformly down-sampled. Further, we propose using Multi-scale Matching which explicitly inspects the correlation between words REINFORCEand ngrams of different levels of granularity. We evaluate the proposed method on SemEval 2016 and SemEval 2017 datasets and achieves state-of-the-art or similar performance.
Year
Venue
Field
2019
AAAI
Training set,SemEval,Question answering,Computer science,Question answer,Artificial intelligence,Granularity,Machine learning,Adversarial system,Binary number,Generative model
DocType
Citations 
PageRank 
Conference
0
0.34
References 
Authors
0
7
Name
Order
Citations
PageRank
Xiao Yang1819.96
Madian Khabsa223718.81
Miaosen Wang300.68
Wei Wang4107.04
Ahmed Hassan594357.64
Daniel Kifer6150986.63
C. Lee Giles7111541549.48