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相关论文: Dual Supervision Framework for Relation Extraction…

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Distant Supervised Relation Extraction (DSRE) is usually formulated as a problem of classifying a bag of sentences that contain two query entities, into the predefined relation classes. Most existing methods consider those relation classes…

计算与语言 · 计算机科学 2019-12-16 Yanjie Gou , Yinjie Lei , Lingqiao Liu , Pingping Zhang , Xi Peng

Wrong-labeling problem and long-tail relations severely affect the performance of distantly supervised relation extraction task. Many studies mitigate the effect of wrong-labeling through selective attention mechanism and handle long-tail…

计算与语言 · 计算机科学 2022-04-26 Ridong Han , Tao Peng , Jiayu Han , Hai Cui , Lu Liu

Relation extraction (RE) involves identifying the relations between entities from underlying content. RE serves as the foundation for many natural language processing (NLP) and information retrieval applications, such as knowledge graph…

计算与语言 · 计算机科学 2024-06-25 Xiaoyan Zhao , Yang Deng , Min Yang , Lingzhi Wang , Rui Zhang , Hong Cheng , Wai Lam , Ying Shen , Ruifeng Xu

Despite the rapid progress that existing automated feedback methods have made in correcting the output of large language models (LLMs), these methods cannot be well applied to the relation extraction (RE) task due to their designated…

计算与语言 · 计算机科学 2024-12-12 Yongqi Li , Xin Miao , Shen Zhou , Mayi Xu , Yuyang Ren , Tieyun Qian

For Relation Extraction (RE), the manual annotation of training data may be prohibitively expensive, since the sentences that contain the target relations in texts can be very scarce and difficult to find. It is therefore beneficial to…

计算与语言 · 计算机科学 2025-09-11 Zexuan Li , Hongliang Dai , Piji Li

Distantly supervised relation extraction intrinsically suffers from noisy labels due to the strong assumption of distant supervision. Most prior works adopt a selective attention mechanism over sentences in a bag to denoise from wrongly…

计算与语言 · 计算机科学 2019-11-28 Yang Li , Guodong Long , Tao Shen , Tianyi Zhou , Lina Yao , Huan Huo , Jing Jiang

Relation extraction is used to populate knowledge bases that are important to many applications. Prior datasets used to train relation extraction models either suffer from noisy labels due to distant supervision, are limited to certain…

计算与语言 · 计算机科学 2021-02-22 Robert Ormandi , Mohammad Saleh , Erin Winter , Vinay Rao

Relation Extraction (RE) aims to label relations between groups of marked entities in raw text. Most current RE models learn context-aware representations of the target entities that are then used to establish relation between them. This…

计算与语言 · 计算机科学 2019-02-26 Gaurav Singh , Parminder Bhatia

Distant supervised relation extraction has been successfully applied to large corpus with thousands of relations. However, the inevitable wrong labeling problem by distant supervision will hurt the performance of relation extraction. In…

计算与语言 · 计算机科学 2018-11-15 Shanchan Wu , Kai Fan , Qiong Zhang

We study the open-domain named entity recognition (NER) problem under distant supervision. The distant supervision, though does not require large amounts of manual annotations, yields highly incomplete and noisy distant labels via external…

计算与语言 · 计算机科学 2020-06-30 Chen Liang , Yue Yu , Haoming Jiang , Siawpeng Er , Ruijia Wang , Tuo Zhao , Chao Zhang

Extracting relations is critical for knowledge base completion and construction in which distant supervised methods are widely used to extract relational facts automatically with the existing knowledge bases. However, the automatically…

计算与语言 · 计算机科学 2018-11-09 Tianyi Liu , Xinsong Zhang , Wanhao Zhou , Weijia Jia

Relation Extraction (RE) is a pivotal task in automatically extracting structured information from unstructured text. In this paper, we present a multi-faceted approach that integrates representative examples and through co-set expansion.…

计算与语言 · 计算机科学 2023-08-24 Yerong Li , Roxana Girju

Distant supervision is a popular method for performing relation extraction from text that is known to produce noisy labels. Most progress in relation extraction and classification has been made with crowdsourced corrections to…

计算与语言 · 计算机科学 2022-09-21 Anca Dumitrache , Lora Aroyo , Chris Welty

Distant supervision for relation extraction is an efficient method to reduce labor costs and has been widely used to seek novel relational facts in large corpora, which can be identified as a multi-instance multi-label problem. However,…

计算与语言 · 计算机科学 2018-12-27 Changsen Yuan , Heyan Huang , Chong Feng , Xiao Liu , Xiaochi Wei

We present a novel framework to deal with relation extraction tasks in cases where there is complete lack of supervision, either in the form of gold annotations, or relations from a knowledge base. Our approach leverages syntactic parsing…

机器学习 · 计算机科学 2019-11-04 Yannis Papanikolaou , Ian Roberts , Andrea Pierleoni

Distant Supervision for Relation Extraction uses heuristically aligned text data with an existing knowledge base as training data. The unsupervised nature of this technique allows it to scale to web-scale relation extraction tasks, at the…

计算与语言 · 计算机科学 2017-10-30 Tushar Nagarajan , Sharmistha , Partha Talukdar

The application of cross-dataset training in object detection tasks is complicated because the inconsistency in the category range across datasets transforms fully supervised learning into semi-supervised learning. To address this problem,…

计算机视觉与模式识别 · 计算机科学 2022-04-04 Ze Chen , Zhihang Fu , Jianqiang Huang , Mingyuan Tao , Shengyu Li , Rongxin Jiang , Xiang Tian , Yaowu Chen , Xian-sheng Hua

Open relation extraction (OpenRE) is the task of extracting relation schemes from open-domain corpora. Most existing OpenRE methods either do not fully benefit from high-quality labeled corpora or can not learn semantic representation…

计算与语言 · 计算机科学 2022-06-02 Yutong Wang , Renze Lou , Kai Zhang , MaoYan Chen , Yujiu Yang

Distant supervision for relation extraction provides uniform bag labels for each sentence inside the bag, while accurate sentence labels are important for downstream applications that need the exact relation type. Directly using bag labels…

计算与语言 · 计算机科学 2021-06-23 Ruotian Ma , Tao Gui , Linyang Li , Qi Zhang , Yaqian Zhou , Xuanjing Huang

Relation extraction is the task of determining the relation between two entities in a sentence. Distantly-supervised models are popular for this task. However, sentences can be long and two entities can be located far from each other in a…

计算与语言 · 计算机科学 2019-12-10 Tapas Nayak , Hwee Tou Ng