Title
RoSeq: Robust Sequence Labeling.
Abstract
In this paper, we mainly investigate two issues for sequence labeling, namely, label imbalance and noisy data that are commonly seen in the scenario of named entity recognition (NER) and are largely ignored in the existing works. To address these two issues, a new method termed robust sequence labeling (RoSeq) is proposed. Specifically, to handle the label imbalance issue, we first incorporate label statistics in a novel conditional random field (CRF) loss. In addition, we design an additional loss to reduce the weights of overwhelming easy tokens for augmenting the CRF loss. To address the noisy training data, we adopt an adversarial training strategy to improve model generalization. In experiments, the proposed RoSeq achieves the state-of-the-art performances on CoNLL and English Twitter NER—88.07% on CoNLL-2002 Dutch, 87.33% on CoNLL-2002 Spanish, 52.94% on WNUT-2016 Twitter, and 43.03% on WNUT-2017 Twitter without using the additional data.
Year
DOI
Venue
2020
10.1109/TNNLS.2019.2911236
IEEE Transactions on Neural Networks and Learning Systems
Keywords
DocType
Volume
Noise measurement,Task analysis,Hidden Markov models,Labeling,Twitter,Training,Data models
Journal
31
Issue
ISSN
Citations 
7
2162-237X
3
PageRank 
References 
Authors
0.39
18
6
Name
Order
Citations
PageRank
Joey Tianyi Zhou135438.60
Hao Zhang2143.59
Di Jin331749.25
Xi Peng444723.84
Yang Xiao523726.58
Zhiguo Cao631444.17