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Recent neural models for relation extraction with distant supervision alleviate the impact of irrelevant sentences in a bag by learning importance weights for the sentences. Efforts thus far have focused on improving extraction accuracy but…

信息检索 · 计算机科学 2020-06-01 Hamed Shahbazi , Xiaoli Z. Fern , Reza Ghaeini , Prasad Tadepalli

Distantly supervised datasets for relation extraction mostly focus on sentence-level extraction, and they cover very few relations. In this work, we propose cross-document relation extraction, where the two entities of a relation tuple…

计算与语言 · 计算机科学 2021-08-24 Tapas Nayak , Hwee Tou Ng

Fact triples are a common form of structured knowledge used within the biomedical domain. As the amount of unstructured scientific texts continues to grow, manual annotation of these texts for the task of relation extraction becomes…

计算与语言 · 计算机科学 2020-05-27 Saadullah Amin , Katherine Ann Dunfield , Anna Vechkaeva , Günter Neumann

Patent texts contain a large amount of entity information. Through named entity recognition, intellectual property entity information containing key information can be extracted from it, helping researchers to understand the patent content…

计算与语言 · 计算机科学 2022-03-22 Yuhui Wang , Junping Du , Yingxia Shao

Relation Extraction (RE), the task of detecting and characterizing semantic relations between entities in text, has gained much importance in the last two decades, mainly in the biomedical domain. Many papers have been published on Relation…

人工智能 · 计算机科学 2020-01-14 Rinaldo Lima , Bernard Espinasse , Fred Freitas

Measuring entity relatedness is a fundamental task for many natural language processing and information retrieval applications. Prior work often studies entity relatedness in static settings and an unsupervised manner. However, entities in…

信息检索 · 计算机科学 2025-12-01 Tu Nguyen , Tuan Tran , Wolfgang Nejdl

Relation prediction for knowledge graphs aims at predicting missing relationships between entities. Despite the importance of inductive relation prediction, most previous works are limited to a transductive setting and cannot process…

人工智能 · 计算机科学 2021-07-27 Sijie Mai , Shuangjia Zheng , Yuedong Yang , Haifeng Hu

Relation extraction is a type of information extraction task that recognizes semantic relationships between entities in a sentence. Many previous studies have focused on extracting only one semantic relation between two entities in a single…

计算与语言 · 计算机科学 2021-03-08 Seongsik Park , Harksoo Kim

Recent years have seen rapid development in Information Extraction, as well as its subtask, Relation Extraction. Relation Extraction is able to detect semantic relations between entities in sentences. Currently, many efficient approaches…

计算与语言 · 计算机科学 2024-03-19 Zhuang Li

We address the task of auto-completing data cells in relational tables. Such tables describe entities (in rows) with their attributes (in columns). We present the CellAutoComplete framework to tackle several novel aspects of this problem,…

信息检索 · 计算机科学 2020-02-06 Shuo Zhang , Krisztian Balog

Many joint entity relation extraction models setup two separated label spaces for the two sub-tasks (i.e., entity detection and relation classification). We argue that this setting may hinder the information interaction between entities and…

计算与语言 · 计算机科学 2021-07-12 Yijun Wang , Changzhi Sun , Yuanbin Wu , Hao Zhou , Lei Li , Junchi Yan

Numerous methods and pipelines have recently emerged for the automatic extraction of knowledge graphs from documents such as scientific publications and patents. However, adapting these methods to incorporate alternative text sources like…

We propose a new end-to-end method for extending a Knowledge Graph (KG) from tables. Existing techniques tend to interpret tables by focusing on information that is already in the KG, and therefore tend to extract many redundant facts. Our…

信息检索 · 计算机科学 2019-07-16 Benno Kruit , Peter Boncz , Jacopo Urbani

Relation extraction aims to identify the target relations of entities in texts. Relation extraction is very important for knowledge base construction and text understanding. Traditional binary relation extraction, including supervised,…

计算与语言 · 计算机科学 2020-12-10 Haiyun Jiang , Qiaoben Bao , Qiao Cheng , Deqing Yang , Li Wang , Yanghua Xiao

Neural relation extraction discovers semantic relations between entities from unstructured text using deep learning methods. In this study, we present a comprehensive review of methods on neural network based relation extraction. We discuss…

计算与语言 · 计算机科学 2020-07-09 Mehmet Aydar , Ozge Bozal , Furkan Ozbay

Patents provide a rich source of information about design innovations. Patent mining techniques employ various technologies, such as text mining, machine learning, natural language processing, and ontology-building techniques. An automated…

数据库 · 计算机科学 2024-02-05 Manal E. Helal , Mohammed E. Helal

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

The essence of distantly supervised relation extraction is that it is an incomplete multi-label classification problem with sparse and noisy features. To tackle the sparsity and noise challenges, we propose solving the classification…

计算与语言 · 计算机科学 2014-11-18 Miao Fan , Deli Zhao , Qiang Zhou , Zhiyuan Liu , Thomas Fang Zheng , Edward Y. Chang

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

Distant supervision (DS) has been widely used to automatically construct (noisy) labeled data for relation extraction (RE). Given two entities, distant supervision exploits sentences that directly mention them for predicting their semantic…

计算与语言 · 计算机科学 2020-06-29 Xiang Deng , Huan Sun