Search Results for author: Hongjie Cai

Found 4 papers, 2 papers with code

MEMD-ABSA: A Multi-Element Multi-Domain Dataset for Aspect-Based Sentiment Analysis

1 code implementation29 Jun 2023 Hongjie Cai, Nan Song, Zengzhi Wang, Qiming Xie, Qiankun Zhao, Ke Li, Siwei Wu, Shijie Liu, Jianfei Yu, Rui Xia

Aspect-based sentiment analysis is a long-standing research interest in the field of opinion mining, and in recent years, researchers have gradually shifted their focus from simple ABSA subtasks to end-to-end multi-element ABSA tasks.

Aspect-Based Sentiment Analysis Opinion Mining +1

Challenges for Open-domain Targeted Sentiment Analysis

no code implementations14 Apr 2022 Yun Luo, Hongjie Cai, Linyi Yang, Yanxia Qin, Rui Xia, Yue Zhang

Since previous studies on open-domain targeted sentiment analysis are limited in dataset domain variety and sentence level, we propose a novel dataset consisting of 6, 013 human-labeled data to extend the data domains in topics of interest and document level.

Sentence Sentiment Analysis

Aspect-Category-Opinion-Sentiment Quadruple Extraction with Implicit Aspects and Opinions

1 code implementation ACL 2021 Hongjie Cai, Rui Xia, Jianfei Yu

In this work, we introduce a new task, named Aspect-Category-Opinion-Sentiment (ACOS) Quadruple Extraction, with the goal to extract all aspect-category-opinion-sentiment quadruples in a review sentence and provide full support for aspect-based sentiment analysis with implicit aspects and opinions.

Aspect-Based Sentiment Analysis Aspect-Category-Opinion-Sentiment Quadruple Extraction +1

Aspect-Category based Sentiment Analysis with Hierarchical Graph Convolutional Network

no code implementations COLING 2020 Hongjie Cai, Yaofeng Tu, Xiangsheng Zhou, Jianfei Yu, Rui Xia

In this work, we re-formalize the task as a category-sentiment hierarchy prediction problem, which contains a hierarchy output structure to first identify multiple aspect categories in a piece of text, and then predict the sentiment for each of the identified categories.

Aspect-Based Sentiment Analysis Aspect-Based Sentiment Analysis (ABSA) +2

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