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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

Real-world Relation Extraction (RE) tasks are challenging to deal with, either due to limited training data or class imbalance issues. In this work, we present Data Augmented Relation Extraction(DARE), a simple method to augment training…

计算与语言 · 计算机科学 2020-04-30 Yannis Papanikolaou , Andrea Pierleoni

Zero-shot relation triplet extraction (ZeroRTE) aims to extract relation triplets from unstructured texts under the zero-shot setting, where the relation sets at the training and testing stages are disjoint. Previous state-of-the-art method…

计算与语言 · 计算机科学 2022-12-14 Yuquan Lan , Dongxu Li , Yunqi Zhang , Hui Zhao , Gang Zhao

The relation extraction (RE) in complex scenarios faces challenges such as diverse relation types and ambiguous relations between entities within a single sentence, leading to the poor performance of pure "text-in, text-out" language models…

计算与语言 · 计算机科学 2024-09-04 Yuchen Shi , Guochao Jiang , Tian Qiu , Deqing Yang

Dialogue relation extraction (RE) is to predict the relation type of two entities mentioned in a dialogue. In this paper, we propose a simple yet effective model named SimpleRE for the RE task. SimpleRE captures the interrelations among…

计算与语言 · 计算机科学 2023-04-26 Fuzhao Xue , Aixin Sun , Hao Zhang , Jinjie Ni , Eng Siong Chng

Retrieved documents containing noise will hinder RAG from detecting answer clues and make the inference process slow and expensive. Therefore, context compression is necessary to enhance its accuracy and efficiency. Existing context…

计算与语言 · 计算机科学 2026-04-28 Qianchi Zhang , Hainan Zhang , Liang Pang , Hongwei Zheng , Zhiming Zheng

Dense retrieval models are commonly used in Information Retrieval (IR) applications, such as Retrieval-Augmented Generation (RAG). Since they often serve as the first step in these systems, their robustness is critical to avoid downstream…

计算与语言 · 计算机科学 2025-06-04 Mohsen Fayyaz , Ali Modarressi , Hinrich Schuetze , Nanyun Peng

Document-level relation extraction is a challenging task which requires reasoning over multiple sentences in order to predict relations in a document. In this paper, we pro-pose a joint training frameworkE2GRE(Entity and Evidence Guided…

计算与语言 · 计算机科学 2020-08-28 Kevin Huang , Guangtao Wang , Tengyu Ma , Jing Huang

While Pairwise Ranking Prompting (PRP) with Large Language Models (LLMs) is one of the most effective zero-shot document ranking methods, it has a quadratic computational complexity with respect to the number of documents to be ranked, as…

信息检索 · 计算机科学 2025-07-08 Junru Wu , Le Yan , Zhen Qin , Honglei Zhuang , Paul Suganthan G. C. , Tianqi Liu , Zhe Dong , Xuanhui Wang , Harrie Oosterhuis

Natural language understanding's relation extraction makes innovative and encouraging novel business concepts possible and facilitates new digitilized decision-making processes. Current approaches allow the extraction of relations with a…

计算与语言 · 计算机科学 2021-11-18 Lars Klöser , Philipp Kohl , Bodo Kraft , Albert Zündorf

Retrieval-Augmented Generation (RAG) has emerged as a promising paradigm for improving the timeliness of knowledge updates and the factual accuracy of large language models. However, incorporating a large volume of retrieved documents…

计算与语言 · 计算机科学 2026-05-29 Ziqiang Cui , Yunpeng Weng , Xing Tang , Peiyang Liu , Shiwei Li , Bowei He , Jiamin Chen , Yansen Zhang , Xiuqiang He , Chen Ma

Document-level relation extraction faces two overlooked challenges: long-tail problem and multi-label problem. Previous work focuses mainly on obtaining better contextual representations for entity pairs, hardly address the above…

计算与语言 · 计算机科学 2022-12-21 Ridong Han , Tao Peng , Benyou Wang , Lu Liu , Xiang Wan

The dialogue-based relation extraction (DialogRE) task aims to predict the relations between argument pairs that appear in dialogue. Most previous studies utilize fine-tuning pre-trained language models (PLMs) only with extensive features…

计算与语言 · 计算机科学 2022-09-28 Junyoung Son , Jinsung Kim , Jungwoo Lim , Heuiseok Lim

Recently, prompt-tuning has achieved promising results for specific few-shot classification tasks. The core idea of prompt-tuning is to insert text pieces (i.e., templates) into the input and transform a classification task into a masked…

计算与语言 · 计算机科学 2023-09-19 Xiang Chen , Ningyu Zhang , Xin Xie , Shumin Deng , Yunzhi Yao , Chuanqi Tan , Fei Huang , Luo Si , Huajun Chen

Unsupervised Relation Extraction (RE) aims to identify relations between entities in text, without having access to labeled data during training. This setting is particularly relevant for domain specific RE where no annotated dataset is…

计算与语言 · 计算机科学 2023-04-05 Pierre-Yves Genest , Pierre-Edouard Portier , Elöd Egyed-Zsigmond , Laurent-Walter Goix

Multiple entities in a document generally exhibit complex inter-sentence relations, and cannot be well handled by existing relation extraction (RE) methods that typically focus on extracting intra-sentence relations for single entity pairs.…

计算与语言 · 计算机科学 2019-08-12 Yuan Yao , Deming Ye , Peng Li , Xu Han , Yankai Lin , Zhenghao Liu , Zhiyuan Liu , Lixin Huang , Jie Zhou , Maosong Sun

Few-Shot Relation Extraction (FSRE) remains a challenging task due to the scarcity of annotated data and the limited generalization capabilities of existing models. Although large language models (LLMs) have demonstrated potential in FSRE…

计算与语言 · 计算机科学 2025-05-20 Quanjiang Guo , Jinchuan Zhang , Sijie Wang , Ling Tian , Zhao Kang , Bin Yan , Weidong Xiao

Joint entity-relation extraction (JERE) identifies both entities and their relationships simultaneously. Traditional machine-learning based approaches to performing this task require a large corpus of annotated data and lack the ability to…

人工智能 · 计算机科学 2026-01-09 Trang Tran , Trung Hoang Le , Huiping Cao , Tran Cao Son

Visual document retrieval requires understanding heterogeneous and multi-modal content to satisfy implicit information needs. Recent advances use screenshot-based document encoding with fine-grained late interaction to encode holistic…

信息检索 · 计算机科学 2026-05-12 Wanqing Cui , Wei Huang , Yazhi Guo , Yibo Hu , Meiguang Jin , Junfeng Ma , Keping Bi

Unsupervised relation extraction (URE) aims to extract relations between named entities from raw text without requiring manual annotations or pre-existing knowledge bases. In recent studies of URE, researchers put a notable emphasis on…

计算与语言 · 计算机科学 2023-12-04 Qing Wang , Kang Zhou , Qiao Qiao , Yuepei Li , Qi Li