Exploiting Document Knowledge for Aspect-level Sentiment Classification
Abstract
Attention-based long short-term memory (LSTM) networks have proven to be useful in aspect-level sentiment classification. However, due to the difficulties in annotating aspect-level data, existing public datasets for this task are all relatively small, which largely limits the effectiveness of those neural models. In this paper, we explore two approaches that transfer knowledge from document- level data, which is much less expensive to obtain, to improve the performance of aspect-level sentiment classification. We demonstrate the effectiveness of our approaches on 4 public datasets from SemEval 2014, 2015, and 2016, and we show that attention-based LSTM benefits from document-level knowledge in multiple ways.
Cite
@article{arxiv.1806.04346,
title = {Exploiting Document Knowledge for Aspect-level Sentiment Classification},
author = {Ruidan He and Wee Sun Lee and Hwee Tou Ng and Daniel Dahlmeier},
journal= {arXiv preprint arXiv:1806.04346},
year = {2018}
}
Comments
Accepted to ACL 2018 (short paper)