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Tuo Ji

3 accepted papers

2022

RoCBert: Robust Chinese Bert with Multimodal Contrastive Pretraining

ACL 2022long

Large-scale pretrained language models have achieved SOTA results on NLP tasks. However, they have been shown vulnerable to adversarial attacks especially for logographic languages like Chinese. In this work, we propose RoCBert: a pretrained Chinese Bert that is robust to various forms of adversaria…

2021

A Unified Generative Framework for Aspect-based Sentiment Analysis

ACL 2021long

Aspect-based Sentiment Analysis (ABSA) aims to identify the aspect terms, their corresponding sentiment polarities, and the opinion terms. There exist seven subtasks in ABSA. Most studies only focus on the subsets of these subtasks, which leads to various complicated ABSA models while hard to solve…