Papers › Exploiting Document Knowledge for Aspect-level Sentiment Classification

Exploiting Document Knowledge for Aspect-level Sentiment Classification

12 Jun 2018ACL 2018 7arXiv:1806.04346archive 2025-07-28

Ruidan He, Wee Sun Lee, Hwee Tou Ng, Daniel Dahlmeier

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.

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