no code implementations • COLING 2022 • Bo Zhou, Chenhao Wang, Yubo Chen, Kang Liu, Jun Zhao, Jiexin Xu, XiaoJian Jiang, Qiuxia Li
Currently existing approach models this task as a statistical induction problem, to predict a sequence of events by exploring the similarity between the given goal and the known sequences of events.
no code implementations • COLING 2022 • Xiusheng Huang, Hang Yang, Yubo Chen, Jun Zhao, Kang Liu, Weijian Sun, Zuyu Zhao
Document-level relation extraction aims to recognize relations among multiple entity pairs from a whole piece of article.
no code implementations • COLING 2022 • Bo Zhou, Yubo Chen, Kang Liu, Jun Zhao, Jiexin Xu, XiaoJian Jiang, Qiuxia Li
The other issue is that the model adopts a word-level objective to model events in texts, failing to evaluate the predicted results of the model from the perspective of event sequence.
no code implementations • EMNLP 2021 • Dianbo Sui, Chenhao Wang, Yubo Chen, Kang Liu, Jun Zhao, Wei Bi
In this paper, we formulate end-to-end KBP as a direct set generation problem, avoiding considering the order of multiple facts.
no code implementations • EMNLP (ACL) 2021 • Baoli Zhang, Zhucong Li, Zhen Gan, Yubo Chen, Jing Wan, Kang Liu, Jun Zhao, Shengping Liu, Yafei Shi
2) Inconsistency Detector: CroAno employs a detector to locate corpus-level label inconsistency and provides users an interface to correct inconsistent entities in batches.
1 code implementation • ACL 2022 • Zhuoran Jin, Tianyi Men, Hongbang Yuan, Zhitao He, Dianbo Sui, Chenhao Wang, Zhipeng Xue, Yubo Chen, Jun Zhao
Designing CogKGE aims to provide a unified programming framework for KGE tasks and a series of knowledge representations for downstream tasks.
no code implementations • EMNLP 2020 • Jian Liu, Yubo Chen, Kang Liu, Wei Bi, Xiaojiang Liu
ii) Our model is excelled in the data-scarce scenario, for example, obtaining 49. 8{\%} in F1 for event argument extraction with only 1{\%} data, compared with 2. 2{\%} of the previous method.
no code implementations • SemEval (NAACL) 2022 • Jia Fu, Zhen Gan, Zhucong Li, Sirui Li, Dianbo Sui, Yubo Chen, Kang Liu, Jun Zhao
This paper describes our approach to develop a complex named entity recognition system in SemEval 2022 Task 11: MultiCoNER Multilingual Complex Named Entity Recognition, Track 9 - Chinese.
no code implementations • EMNLP 2020 • Pengfei Cao, Yubo Chen, Jun Zhao, Taifeng Wang
However, existing incremental learning methods cannot handle semantic ambiguity and training data imbalance problems between old and new classes in the task of incremental event detection.
1 code implementation • EMNLP 2021 • Pengfei Cao, Yubo Chen, Yuqing Yang, Kang Liu, Jun Zhao
Moreover, we propose an Uncertain Information Aggregation module to leverage the global structure for integrating the local information.
no code implementations • EMNLP 2020 • Dianbo Sui, Yubo Chen, Jun Zhao, Yantao Jia, Yuantao Xie, Weijian Sun
In this paper, we propose a privacy-preserving medical relation extraction model based on federated learning, which enables training a central model with no single piece of private local data being shared or exchanged.
no code implementations • CCL 2020 • Pengfei Cao, Yubo Chen, Kang Liu, Jun Zhao
Specifically, to reduce the errors of predicting entity boundaries, we propose an adaptive multi-pass memory network to exploit lexical knowledge.
Chinese Named Entity Recognition
named-entity-recognition
+3
no code implementations • NAACL (SMM4H) 2021 • Tong Zhou, Zhucong Li, Zhen Gan, Baoli Zhang, Yubo Chen, Kun Niu, Jing Wan, Kang Liu, Jun Zhao, Yafei Shi, Weifeng Chong, Shengping Liu
This is the system description of the CASIA_Unisound team for Task 1, Task 7b, and Task 8 of the sixth Social Media Mining for Health Applications (SMM4H) shared task in 2021.
no code implementations • SMM4H (COLING) 2022 • Jia Fu, Sirui Li, Hui Ming Yuan, Zhucong Li, Zhen Gan, Yubo Chen, Kang Liu, Jun Zhao, Shengping Liu
This paper presents a description of our system in SMM4H-2022, where we participated in task 1a, task 4, and task 6 to task 10.
no code implementations • Findings (ACL) 2022 • Yubo Chen, Yunqi Zhang, Yongfeng Huang
To capture the relation type inference logic of the paths, we propose to understand the unlabeled conceptual expressions by reconstructing the sentence from the relational graph (graph-to-text generation) in a self-supervised manner.
no code implementations • 28 Aug 2023 • Baoli Zhang, Haining Xie, Pengfan Du, JunHao Chen, Pengfei Cao, Yubo Chen, Shengping Liu, Kang Liu, Jun Zhao
To this end, we propose the ZhuJiu benchmark, which has the following strengths: (1) Multi-dimensional ability coverage: We comprehensively evaluate LLMs across 7 ability dimensions covering 51 tasks.
no code implementations • 25 Aug 2023 • YuHeng Chen, Pengfei Cao, Yubo Chen, Kang Liu, Jun Zhao
This paper delves into the complex task of understanding how factual knowledge is stored in multilingual PLMs, and introduces the Architecture-adapted Multilingual Integrated Gradients method, which successfully localizes knowledge neurons more precisely compared to current methods, and is more universal across various architectures and languages.
no code implementations • 17 Aug 2023 • Harshala Gammulle, Yubo Chen, Sridha Sridharan, Travis Klein, Clinton Fookes
However, there is a lack of focus on developing lightweight models which can run in low-resource environments, which are typically encountered in medical clinics.
no code implementations • 21 Mar 2022 • Changran Hu, Akshara Reddi Methukupalli, Yutong Zhou, Chen Wu, Yubo Chen
In particular, we propose to apply the BIO tagging scheme instead of the conventional binary scheme to mine the code solutions which are often composed of multiple blocks of a post.
1 code implementation • 17 Dec 2021 • Quan Cui, Boyan Zhou, Yu Guo, Weidong Yin, Hao Wu, Osamu Yoshie, Yubo Chen
However, these works require a tremendous amount of data and computational resources (e. g., billion-level web data and hundreds of GPUs), which prevent researchers with limited resources from reproduction and further exploration.
1 code implementation • ACL 2021 • Dianbo Sui, Zhengkun Tian, Yubo Chen, Kang Liu, Jun Zhao
In this paper, we aim to explore an uncharted territory, which is Chinese multimodal named entity recognition (NER) with both textual and acoustic contents.
no code implementations • ACL 2021 • Pengfei Cao, Xinyu Zuo, Yubo Chen, Kang Liu, Jun Zhao, Yuguang Chen, Weihua Peng
Specifically, to make use of the descriptive knowledge, we devise a Descriptive Graph Induction module to obtain and encode the graph-structured descriptive knowledge.
1 code implementation • ACL 2021 • Zhuoran Jin, Yubo Chen, Dianbo Sui, Chenhao Wang, Zhipeng Xue, Jun Zhao
CogNet is a knowledge base that integrates three types of knowledge: linguistic knowledge, world knowledge and commonsense knowledge.
2 code implementations • ACL 2021 • Hang Yang, Dianbo Sui, Yubo Chen, Kang Liu, Jun Zhao, Taifeng Wang
We argue that sentence-level extractors are ill-suited to the DEE task where event arguments always scatter across sentences and multiple events may co-exist in a document.
1 code implementation • ACL 2021 • Tong Zhou, Pengfei Cao, Yubo Chen, Kang Liu, Jun Zhao, Kun Niu, Weifeng Chong, Shengping Liu
The ICD coding task aims at assigning codes of the International Classification of Diseases in clinical notes.
no code implementations • ACL 2021 • Xinyu Zuo, Pengfei Cao, Yubo Chen, Kang Liu, Jun Zhao, Weihua Peng, Yuguang Chen
On the other hand, our approach employs a dual mechanism, which is a learnable augmentation framework and can interactively adjust the generation process to generate task-related sentences.
no code implementations • Findings (ACL) 2021 • Xinyu Zuo, Pengfei Cao, Yubo Chen, Kang Liu, Jun Zhao, Weihua Peng, Yuguang Chen
Current models for event causality identification (ECI) mainly adopt a supervised framework, which heavily rely on labeled data for training.
no code implementations • NAACL 2021 • Yubo Chen, Yunqi Zhang, Changran Hu, Yongfeng Huang
To explore entity pairs that may be implicitly connected by relations, we propose a binary pointer network to extract overlapping relational triples relevant to each word sequentially and retain the information of previously extracted triples in an external memory.
no code implementations • EACL 2021 • Pei Chen, Kang Liu, Yubo Chen, Taifeng Wang, Jun Zhao
This paper proposes a new task regarding event reason extraction from document-level texts.
no code implementations • 3 Mar 2021 • Chenhao Wang, Yubo Chen, Zhipeng Xue, Yang Zhou, Jun Zhao
In this paper, we present CogNet, a knowledge base (KB) dedicated to integrating three types of knowledge: (1) linguistic knowledge from FrameNet, which schematically describes situations, objects and events.
no code implementations • Asian Chapter of the Association for Computational Linguistics 2020 • Pei Chen, Hang Yang, Kang Liu, Ruihong Huang, Yubo Chen, Taifeng Wang, Jun Zhao
Event information is usually scattered across multiple sentences within a document.
no code implementations • Asian Chapter of the Association for Computational Linguistics 2020 • Yubo Chen, Chuhan Wu, Tao Qi, Zhigang Yuan, Yongfeng Huang
In this paper, we propose a unified framework to incorporate multi-level contexts for named entity recognition.
1 code implementation • 3 Nov 2020 • Dianbo Sui, Yubo Chen, Kang Liu, Jun Zhao, Xiangrong Zeng, Shengping Liu
Compared with cross-entropy loss that highly penalizes small shifts in triple order, the proposed bipartite matching loss is invariant to any permutation of predictions; thus, it can provide the proposed networks with a more accurate training signal by ignoring triple order and focusing on relation types and entities.
Ranked #1 on
Joint Entity and Relation Extraction
on NYT
no code implementations • Findings of the Association for Computational Linguistics 2020 • Jian Liu, Yubo Chen, Kang Liu, Yantao Jia, Zhicheng Sheng
Event detection (ED) aims to identify and classify event triggers in texts, which is a crucial subtask of event extraction (EE).
no code implementations • COLING 2020 • Xinyu Zuo, Yubo Chen, Kang Liu, Jun Zhao
Modern models of event causality detection (ECD) are mainly based on supervised learning from small hand-labeled corpora.
no code implementations • CCL 2020 • Xinyu Zuo, Yubo Chen, Kang Liu, Jun Zhao
PSAN can assist in causal explanation detection via capturing the salient semantics of discourses contained in their keywords with a bottom graph-based word-level salient network.
no code implementations • 22 Sep 2020 • Xinyu Zuo, Yubo Chen, Kang Liu, Jun Zhao
Event coreference resolution(ECR) is an important task in Natural Language Processing (NLP) and nearly all the existing approaches to this task rely on event argument information.
1 code implementation • Findings (EMNLP) 2021 • Dianbo Sui, Yubo Chen, Kang Liu, Jun Zhao
In this paper, we propose a federated denoising framework to suppress label noise in federated settings.
no code implementations • ACL 2020 • Pengfei Cao, Chenwei Yan, Xiangling Fu, Yubo Chen, Kang Liu, Jun Zhao, Shengping Liu, Weifeng Chong
In this paper, we introduce Clinical-Coder, an online system aiming to assign ICD codes to Chinese clinical notes.
no code implementations • ACL 2020 • Pengfei Cao, Yubo Chen, Kang Liu, Jun Zhao, Shengping Liu, Weifeng Chong
Specifically, we propose a hyperbolic representation method to leverage the code hierarchy.
no code implementations • NAACL 2021 • Dianbo Sui, Yubo Chen, Binjie Mao, Delai Qiu, Kang Liu, Jun Zhao
This is mainly due to the fact that human beings can leverage knowledge obtained from relevant tasks.
no code implementations • 9 Mar 2020 • Xianpei Han, Zhichun Wang, Jiangtao Zhang, Qinghua Wen, Wenqi Li, Buzhou Tang, Qi. Wang, Zhifan Feng, Yang Zhang, Yajuan Lu, Haitao Wang, Wenliang Chen, Hao Shao, Yubo Chen, Kang Liu, Jun Zhao, Taifeng Wang, Kezun Zhang, Meng Wang, Yinlin Jiang, Guilin Qi, Lei Zou, Sen Hu, Minhao Zhang, Yinnian Lin
Knowledge graph models world knowledge as concepts, entities, and the relationships between them, which has been widely used in many real-world tasks.
no code implementations • IJCNLP 2019 • Jian Liu, Yubo Chen, Kang Liu, Jun Zhao
In this paper, we propose a new method for cross-lingual ED, demonstrating a minimal dependency on parallel resources.
1 code implementation • IJCNLP 2019 • Dianbo Sui, Yubo Chen, Kang Liu, Jun Zhao, Shengping Liu
The lack of word boundaries information has been seen as one of the main obstacles to develop a high performance Chinese named entity recognition (NER) system.
Ranked #11 on
Chinese Named Entity Recognition
on Weibo NER
Chinese Named Entity Recognition
named-entity-recognition
+2
no code implementations • SEMEVAL 2019 • Tao Qi, Suyu Ge, Chuhan Wu, Yubo Chen, Yongfeng Huang
First name: Tao Last name: Qi Email: taoqi. qt@gmail. com Affiliation: Department of Electronic Engineering, Tsinghua University First name: Suyu Last name: Ge Email: gesy17@mails. tsinghua. edu. cn Affiliation: Department of Electronic Engineering, Tsinghua University First name: Chuhan Last name: Wu Email: wuch15@mails. tsinghua. edu. cn Affiliation: Department of Electronic Engineering, Tsinghua University First name: Yubo Last name: Chen Email: chen-yb18@mails. tsinghua. edu. cn Affiliation: Department of Electronic Engineering, Tsinghua University First name: Yongfeng Last name: Huang Email: yfhuang@mail. tsinghua. edu. cn Affiliation: Department of Electronic Engineering, Tsinghua University Toponym resolution is an important and challenging task in the neural language processing field, and has wide applications such as emergency response and social media geographical event analysis.
1 code implementation • EMNLP 2018 • Yubo Chen, Hang Yang, Kang Liu, Jun Zhao, Yantao Jia
Traditional approaches to the task of ACE event detection primarily regard multiple events in one sentence as independent ones and recognize them separately by using sentence-level information.
1 code implementation • EMNLP 2018 • Pengfei Cao, Yubo Chen, Kang Liu, Jun Zhao, Shengping Liu
However, existing methods for Chinese NER either do not exploit word boundary information from CWS or cannot filter the specific information of CWS.
Ranked #1 on
Chinese Named Entity Recognition
on SighanNER
Chinese Named Entity Recognition
Chinese Word Segmentation
+4
no code implementations • AAAI-18 2018 • Jian Liu, Yubo Chen, Kang Liu, Jun Zhao
In specific, to alleviate data scarcity problem, we exploit the consistent information in multilingual data via context attention mechanism.
1 code implementation • ACL 2018 • Hang Yang, Yubo Chen, Kang Liu, Yang Xiao, Jun Zhao
We present an event extraction framework to detect event mentions and extract events from the document-level financial news.
no code implementations • WS 2018 • Chuhan Wu, Fangzhao Wu, Yubo Chen, Sixing Wu, Zhigang Yuan, Yongfeng Huang
In addition, we compare the performance of the softmax classifier and conditional random field (CRF) for sequential labeling in this task.
no code implementations • ACL 2017 • Shulin Liu, Yubo Chen, Kang Liu, Jun Zhao
This paper tackles the task of event detection (ED), which involves identifying and categorizing events.
no code implementations • ACL 2017 • Yubo Chen, Shulin Liu, Xiang Zhang, Kang Liu, Jun Zhao
Modern models of event extraction for tasks like ACE are based on supervised learning of events from small hand-labeled data.