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Relation extraction (RE) has been extensively studied due to its importance in real-world applications such as knowledge base construction and question answering. Most of the existing works train the models on either distantly supervised…

计算与语言 · 计算机科学 2020-11-25 Woohwan Jung , Kyuseok Shim

Open-world Relation Extraction (OpenRE) has recently garnered significant attention. However, existing approaches tend to oversimplify the problem by assuming that all unlabeled texts belong to novel classes, thereby limiting the…

计算与语言 · 计算机科学 2023-11-03 William Hogan , Jiacheng Li , Jingbo Shang

In natural language, often multiple entities appear in the same text. However, most previous works in Relation Extraction (RE) limit the scope to identifying the relation between two entities at a time. Such an approach induces a quadratic…

计算与语言 · 计算机科学 2020-10-13 Zhijing Jin , Yongyi Yang , Xipeng Qiu , Zheng Zhang

In relation extraction, a key process is to obtain good detectors that find relevant sentences describing the target relation. To minimize the necessity of labeled data for refining detectors, previous work successfully made use of…

计算与语言 · 计算机科学 2016-09-19 Shinichi Nakajima , Sebastian Krause , Dirk Weissenborn , Sven Schmeier , Nico Goernitz , Feiyu Xu

The main purpose of relation extraction is to extract the semantic relationships between tagged pairs of entities in a sentence, which plays an important role in the semantic understanding of sentences and the construction of knowledge…

计算与语言 · 计算机科学 2023-03-21 Chenghong Sun , Weidong Ji , Guohui Zhou , Hui Guo , Zengxiang Yin , Yuqi Yue

OpenNRE is an open-source and extensible toolkit that provides a unified framework to implement neural models for relation extraction (RE). Specifically, by implementing typical RE methods, OpenNRE not only allows developers to train custom…

计算与语言 · 计算机科学 2019-10-01 Xu Han , Tianyu Gao , Yuan Yao , Demin Ye , Zhiyuan Liu , Maosong Sun

Relation extraction is a Natural Language Processing task that aims to extract relationships from textual data. It is a critical step for information extraction. Due to its wide-scale applicability, research in relation extraction has…

计算与语言 · 计算机科学 2024-11-27 Anushka Swarup , Avanti Bhandarkar , Olivia P. Dizon-Paradis , Ronald Wilson , Damon L. Woodard

Few-shot relation extraction (FSRE) focuses on recognizing novel relations by learning with merely a handful of annotated instances. Meta-learning has been widely adopted for such a task, which trains on randomly generated few-shot tasks to…

计算与语言 · 计算机科学 2021-10-26 Jiale Han , Bo Cheng , Wei Lu

Document-level relation extraction (DocRE) aims to extract semantic relations among entity pairs in a document. Typical DocRE methods blindly take the full document as input, while a subset of the sentences in the document, noted as the…

计算与语言 · 计算机科学 2022-03-08 Yiqing Xie , Jiaming Shen , Sha Li , Yuning Mao , Jiawei Han

Knowledge base provides a potential way to improve the intelligence of information retrieval (IR) systems, for that knowledge base has numerous relations between entities which can help the IR systems to conduct inference from one entity to…

计算与语言 · 计算机科学 2019-07-29 Hai Ye , Zhunchen Luo

Contextual Relation Extraction (CRE) is mainly used for constructing a knowledge graph with a help of ontology. It performs various tasks such as semantic search, query answering, and textual entailment. Relation extraction identifies the…

计算与语言 · 计算机科学 2023-09-14 R. Priyadharshini , G. Jeyakodi , P. Shanthi Bala

Distantly supervised models are very popular for relation extraction since we can obtain a large amount of training data using the distant supervision method without human annotation. In distant supervision, a sentence is considered as a…

计算与语言 · 计算机科学 2021-08-24 Tapas Nayak , Navonil Majumder , Soujanya Poria

Distantly supervision automatically generates plenty of training samples for relation extraction. However, it also incurs two major problems: noisy labels and imbalanced training data. Previous works focus more on reducing wrongly labeled…

计算与语言 · 计算机科学 2021-05-24 Chenhao Xie , Jiaqing Liang , Jingping Liu , Chengsong Huang , Wenhao Huang , Yanghua Xiao

Relation Extraction (RE) is a foundational task of natural language processing. RE seeks to transform raw, unstructured text into structured knowledge by identifying relational information between entity pairs found in text. RE has numerous…

计算与语言 · 计算机科学 2022-07-19 William Hogan

Relation extraction (RE) models have been challenged by their reliance on training data with expensive annotations. Considering that summarization tasks aim at acquiring concise expressions of synoptical information from the longer context,…

计算与语言 · 计算机科学 2022-10-24 Keming Lu , I-Hung Hsu , Wenxuan Zhou , Mingyu Derek Ma , Muhao Chen

Financial technology (FinTech) has drawn much attention among investors and companies. While conventional stock analysis in FinTech targets at predicting stock prices, less effort is made for profitable stock recommendation. Besides, in…

机器学习 · 计算机科学 2021-06-21 Yi-Ling Hsu , Yu-Che Tsai , Cheng-Te Li

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

Connections between relations in relation extraction, which we call class ties, are common. In distantly supervised scenario, one entity tuple may have multiple relation facts. Exploiting class ties between relations of one entity tuple…

人工智能 · 计算机科学 2017-08-08 Hai Ye , Wenhan Chao , Zhunchen Luo , Zhoujun Li

Relation extraction with accurate precision is still a challenge when processing full text databases. We propose an approach based on cooccurrence analysis in each document for which we used document organization to improve accuracy of…

计算与语言 · 计算机科学 2015-04-24 Nicolas Turenne , Tien Phan

Remote sensing (RS) images are usually produced at an unprecedented scale, yet they are geographically and institutionally distributed, making centralized model training challenging due to data-sharing restrictions and privacy concerns.…

机器学习 · 计算机科学 2025-05-14 Haodong Zhao , Peng Peng , Chiyu Chen , Linqing Huang , Gongshen Liu