no code implementations • EMNLP 2020 • Yijun Wang, Changzhi Sun, Yuanbin Wu, Junchi Yan, Peng Gao, Guotong Xie
In particular, a span encoder is trained to recover a random shuffling of tokens in a span, and a span pair encoder is trained to predict positive pairs that are from the same sentences and negative pairs that are from different sentences using contrastive loss.
no code implementations • 10 May 2023 • Siyu Yuan, Jiangjie Chen, Changzhi Sun, Jiaqing Liang, Yanghua Xiao, Deqing Yang
Analogical reasoning is a fundamental cognitive ability of humans.
no code implementations • 7 May 2023 • Yijun Wang, Changzhi Sun, Yuanbin Wu, Lei LI, Junchi Yan, Hao Zhou
Entity relation extraction consists of two sub-tasks: entity recognition and relation extraction.
1 code implementation • 22 Nov 2022 • Jiangjie Chen, Rui Xu, Wenxuan Zeng, Changzhi Sun, Lei LI, Yanghua Xiao
Given a possibly false claim sentence, how can we automatically correct it with minimal editing?
1 code implementation • COLING 2022 • Yufang Liu, Ziyin Huang, Yijun Wang, Changzhi Sun, Man Lan, Yuanbin Wu, Xiaofeng Mou, Ding Wang
Existing distantly supervised relation extractors usually rely on noisy data for both model training and evaluation, which may lead to garbage-in-garbage-out systems.
no code implementations • COLING 2022 • Siyin Wang, Jie zhou, Changzhi Sun, Junjie Ye, Tao Gui, Qi Zhang, Xuanjing Huang
In this work, we propose a causal intervention model for Implicit Sentiment Analysis using Instrumental Variable (ISAIV).
no code implementations • Findings (ACL) 2022 • Jiangjie Chen, Rui Xu, Ziquan Fu, Wei Shi, Zhongqiao Li, Xinbo Zhang, Changzhi Sun, Lei LI, Yanghua Xiao, Hao Zhou
Holding the belief that models capable of reasoning should be right for the right reasons, we propose a first-of-its-kind Explainable Knowledge-intensive Analogical Reasoning benchmark (E-KAR).
1 code implementation • EMNLP 2021 • Dongyu Ru, Changzhi Sun, Jiangtao Feng, Lin Qiu, Hao Zhou, Weinan Zhang, Yong Yu, Lei LI
LogiRE treats logic rules as latent variables and consists of two modules: a rule generator and a relation extractor.
Ranked #20 on
Relation Extraction
on DocRED
no code implementations • 29 Sep 2021 • Xinbo Zhang, Changzhi Sun, Yue Zhang, Lei LI, Hao Zhou
Logical reasoning over natural text is an important capability towards human level intelligence.
1 code implementation • ACL 2021 • Yijun Wang, Changzhi Sun, Yuanbin Wu, Hao Zhou, Lei LI, Junchi Yan
Entities and relations are represented by squares and rectangles in the table.
1 code implementation • Findings (ACL) 2021 • Changzhi Sun, Xinbo Zhang, Jiangjie Chen, Chun Gan, Yuanbin Wu, Jiaze Chen, Hao Zhou, Lei LI
In this paper, we propose PRobr, a novel approach for joint answer prediction and proof generation.
1 code implementation • EACL 2021 • Yijun Wang, Changzhi Sun, Yuanbin Wu, Hao Zhou, Lei LI, Junchi Yan
Current state-of-the-art systems for joint entity relation extraction (Luan et al., 2019; Wad-den et al., 2019) usually adopt the multi-task learning framework.
no code implementations • EACL 2021 • Jie zhou, Yuanbin Wu, Changzhi Sun, Liang He
Modelling a word{'}s polarity in different contexts is a key task in sentiment analysis.
1 code implementation • 25 Dec 2020 • Jiangjie Chen, Qiaoben Bao, Changzhi Sun, Xinbo Zhang, Jiaze Chen, Hao Zhou, Yanghua Xiao, Lei LI
The final claim verification is based on all latent variables.
no code implementations • ACL 2019 • Changzhi Sun, Yeyun Gong, Yuanbin Wu, Ming Gong, Daxin Jiang, Man Lan, Shiliang Sun, Nan Duan
We develop a new paradigm for the task of joint entity relation extraction.
Ranked #1 on
Relation Extraction
on ACE 2005
(Sentence Encoder metric)
no code implementations • EMNLP 2018 • Changzhi Sun, Yuanbin Wu, Man Lan, Shiliang Sun, Wenting Wang, Kuang-Chih Lee, Kewen Wu
We investigate the task of joint entity relation extraction.
Ranked #1 on
Relation Extraction
on ACE 2005
(Sentence Encoder metric)
no code implementations • EACL 2017 • Changzhi Sun, Yuanbin Wu, Man Lan, Shiliang Sun, Qi Zhang
We investigate the task of open domain opinion relation extraction.