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Joint Multimodal Entity-Relation Extraction (JMERE) is a challenging task that aims to extract entities and their relations from text-image pairs in social media posts. Existing methods for JMERE require large amounts of labeled data.…

计算与语言 · 计算机科学 2025-03-25 Li Yuan , Yi Cai , Junsheng Huang

Joint named entity recognition (NER) and relation extraction (RE) is a fundamental task in natural language processing for constructing knowledge graphs from unstructured text. While recent approaches treat NER and RE as separate tasks…

计算与语言 · 计算机科学 2026-05-12 Ihor Stepanov , Oleksandr Lukashov , Mykhailo Shtopko , Vivek Kalyanarangan

Joint Entity and Relation Extraction (JERE) is highly sensitive to training data quality, making data augmentation a natural way to improve generalization. However, existing augmentation methods often weaken entity relevance and disrupt…

计算与语言 · 计算机科学 2026-05-29 Jiawei He , Mengyu Shi , Jiawei Liu , Dong Sun , Chunrong Fang , Xikai Yang , Zhijie Wang , Lei Ma , Zhenyu Chen

Relation Extraction (RE) has attracted increasing attention, but current RE evaluation is limited to in-domain evaluation setups. Little is known on how well a RE system fares in challenging, but realistic out-of-distribution evaluation…

计算与语言 · 计算机科学 2022-10-19 Elisa Bassignana , Barbara Plank

Distant supervision (DS) has been widely used to generate auto-labeled data for sentence-level relation extraction (RE), which improves RE performance. However, the existing success of DS cannot be directly transferred to the more…

计算与语言 · 计算机科学 2020-11-10 Chaojun Xiao , Yuan Yao , Ruobing Xie , Xu Han , Zhiyuan Liu , Maosong Sun , Fen Lin , Leyu Lin

Scientific information extraction (SciIE) is critical for converting unstructured knowledge from scholarly articles into structured data (entities and relations). Several datasets have been proposed for training and validating SciIE models.…

计算与语言 · 计算机科学 2024-10-29 Qi Zhang , Zhijia Chen , Huitong Pan , Cornelia Caragea , Longin Jan Latecki , Eduard Dragut

Joint entity and relation extraction is a process that identifies entity pairs and their relations using a single model. We focus on the problem of joint extraction in distantly-labeled data, whose labels are generated by aligning entity…

计算与语言 · 计算机科学 2024-05-28 Yufei Li , Xiao Yu , Yanghong Guo , Yanchi Liu , Haifeng Chen , Cong Liu

Document-level relation extraction aims to categorize the association between any two entities within a document. We find that previous methods for document-level relation extraction are ineffective in exploiting the full potential of large…

计算与语言 · 计算机科学 2024-06-11 Chufan Gao , Xuan Wang , Jimeng Sun

Recently, knowledge-enhanced methods leveraging auxiliary knowledge graphs have emerged in relation extraction, surpassing traditional text-based approaches. However, to our best knowledge, there is currently no public dataset available…

机器学习 · 计算机科学 2023-04-26 Yucong Lin , Hongming Xiao , Jiani Liu , Zichao Lin , Keming Lu , Feifei Wang , Wei Wei

Named entity recognition (NER) and relation extraction (RE) are two important tasks in information extraction and retrieval (IE \& IR). Recent work has demonstrated that it is beneficial to learn these tasks jointly, which avoids the…

计算与语言 · 计算机科学 2020-01-01 John Giorgi , Xindi Wang , Nicola Sahar , Won Young Shin , Gary D. Bader , Bo Wang

Fine-grained few-shot entity extraction in the chemical domain faces two unique challenges. First, compared with entity extraction tasks in the general domain, sentences from chemical papers usually contain more entities. Moreover, entity…

计算与语言 · 计算机科学 2024-05-31 Qingyun Wang , Zixuan Zhang , Hongxiang Li , Xuan Liu , Jiawei Han , Huimin Zhao , Heng Ji

Zero-shot entity retrieval, aiming to link mentions to candidate entities under the zero-shot setting, is vital for many tasks in Natural Language Processing. Most existing methods represent mentions/entities via the sentence embeddings of…

计算与语言 · 计算机科学 2022-11-22 Taiqiang Wu , Xingyu Bai , Weigang Guo , Weijie Liu , Siheng Li , Yujiu Yang

With the continuous progress of digitization in Chinese judicial institutions, a substantial amount of electronic legal document information has been accumulated. To unlock its potential value, entity and relation extraction for legal…

计算与语言 · 计算机科学 2026-02-10 Binglin Wu , Xianneng Li

Information Extraction (IE), encompassing Named Entity Recognition (NER), Named Entity Linking (NEL), and Relation Extraction (RE), is critical for transforming the rapidly growing volume of scientific publications into structured,…

Joint entity and relation extraction plays a pivotal role in various applications, notably in the construction of knowledge graphs. Despite recent progress, existing approaches often fall short in two key aspects: richness of representation…

计算与语言 · 计算机科学 2024-04-22 Urchade Zaratiana , Nadi Tomeh , Yann Dauxais , Pierre Holat , Thierry Charnois

Sentence-level relation extraction (RE) aims to identify the relationship between 2 entities given a contextual sentence. While there have been many attempts to solve this problem, the current solutions have a lot of room to improve. In…

计算与语言 · 计算机科学 2023-07-04 N Harsha Vardhan , Manav Chaudhary

Joint entity-relation extraction is a critical task in transforming unstructured or semi-structured text into triplets, facilitating the construction of large-scale knowledge graphs, and supporting various downstream applications. Despite…

计算与语言 · 计算机科学 2025-02-14 Danni Feng , Runzhi Li , Jing Wang , Siyu Yan , Lihong Ma , Yunli Xing

Process model extraction (PME) is a recently emerged interdiscipline between natural language processing (NLP) and business process management (BPM), which aims to extract process models from textual descriptions. Previous process…

计算与语言 · 计算机科学 2020-03-23 Chen Qian , Lijie Wen , Akhil Kumar , Leilei Lin , Li Lin , Zan Zong , Shuang Li , Jianmin Wang

Dialogue relation extraction (DRE) aims to detect the relation between two entities mentioned in a multi-party dialogue. It plays an important role in constructing knowledge graphs from conversational data increasingly abundant on the…

计算与语言 · 计算机科学 2021-06-22 Hui Chen , Pengfei Hong , Wei Han , Navonil Majumder , Soujanya Poria

Extracting entity pairs along with relation types from unstructured texts is a fundamental subtask of information extraction. Most existing joint models rely on fine-grained labeling scheme or focus on shared embedding parameters. These…

人工智能 · 计算机科学 2020-10-16 Bin-Bin Zhao , Liang Li , Hui-Dong Zhang