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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

Manual annotation of the labeled data for relation extraction is time-consuming and labor-intensive. Semi-supervised methods can offer helping hands for this problem and have aroused great research interests. Existing work focuses on…

计算与语言 · 计算机科学 2020-10-23 Wanli Li , Tieyun Qian

Relation extraction is a fundamental problem in natural language processing. Most existing models are defined for relation extraction in the general domain. However, their performance on specific domains (e.g., biomedicine) is yet unclear.…

计算与语言 · 计算机科学 2021-12-14 Yongkang Li

In this paper, we propose a fully automated system to extend knowledge graphs using external information from web-scale corpora. The designed system leverages a deep learning based technology for relation extraction that can be trained by a…

计算与语言 · 计算机科学 2019-09-12 Sarthak Dash , Michael R. Glass , Alfio Gliozzo , Mustafa Canim

Objective: Medical relations are the core components of medical knowledge graphs that are needed for healthcare artificial intelligence. However, the requirement of expert annotation by conventional algorithm development processes creates a…

机器学习 · 计算机科学 2020-09-09 Yucong Lin , Keming Lu , Yulin Chen , Chuan Hong , Sheng Yu

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

Two key obstacles in biomedical relation extraction (RE) are the scarcity of annotations and the prevalence of instances without explicitly pre-defined labels due to low annotation coverage. Existing approaches, which treat biomedical RE as…

计算与语言 · 计算机科学 2023-10-20 Jiashu Xu , Mingyu Derek Ma , Muhao Chen

Relation extraction (RE) has recently moved from the sentence-level to document-level, which requires aggregating document information and using entities and mentions for reasoning. Existing works put entity nodes and mention nodes with…

计算与语言 · 计算机科学 2023-03-08 Hongfei Liu , Zhao Kang , Lizong Zhang , Ling Tian , Fujun Hua

Extracting relations from scientific literature is a fundamental task in biomedical NLP because entities and relations among them drive hypothesis generation and knowledge discovery. As literature grows rapidly, relation extraction (RE) is…

计算与语言 · 计算机科学 2026-01-15 Aviv Brokman , Xuguang Ai , Yuhang Jiang , Shashank Gupta , Ramakanth Kavuluru

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

Relation Extraction (RE) is a vital step to complete Knowledge Graph (KG) by extracting entity relations from texts.However, it usually suffers from the long-tail issue. The training data mainly concentrates on a few types of relations,…

计算与语言 · 计算机科学 2020-11-30 Yixin Cao , Jun Kuang , Ming Gao , Aoying Zhou , Yonggang Wen , Tat-Seng Chua

Relation extraction is a key task in Natural Language Processing (NLP), which aims to extract relations between entity pairs from given texts. Recently, relation extraction (RE) has achieved remarkable progress with the development of deep…

计算与语言 · 计算机科学 2022-04-12 Xinnian Liang , Shuangzhi Wu , Mu Li , Zhoujun Li

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

The Clinical E-Science Framework (CLEF) project was used to extract important information from medical texts by building a system for the purpose of clinical research, evidence-based healthcare and genotype-meets-phenotype informatics. The…

信息检索 · 计算机科学 2013-06-24 Wafaa Tawfik Abdel-moneim , Mohamed Hashem Abdel-Aziz , Mohamed Monier Hassan

Using different sources of information to support automated extracting of relations between biomedical concepts contributes to the development of our understanding of biological systems. The primary comprehensive source of these relations…

计算与语言 · 计算机科学 2020-09-21 Diana Sousa , Andre Lamurias , Francisco M. Couto

Discovering authoritative links between publications and the datasets that they use can be a labor-intensive process. We introduce a natural language processing pipeline that retrieves and reviews publications for informal references to…

数字图书馆 · 计算机科学 2023-05-03 Sara Lafia , Lizhou Fan , Libby Hemphill

Process-aware information systems offer extensive advantages to companies, facilitating planning, operations, and optimization of day-to-day business activities. However, the time-consuming but required step of designing formal business…

计算与语言 · 计算机科学 2024-04-09 Julian Neuberger , Lars Ackermann , Stefan Jablonski

Most information extraction methods focus on binary relations expressed within single sentences. In high-value domains, however, $n$-ary relations are of great demand (e.g., drug-gene-mutation interactions in precision oncology). Such…

计算与语言 · 计算机科学 2019-06-28 Robin Jia , Cliff Wong , Hoifung Poon

Biomedical Information Extraction is an exciting field at the crossroads of Natural Language Processing, Biology and Medicine. It encompasses a variety of different tasks that require application of state-of-the-art NLP techniques, such as…

计算与语言 · 计算机科学 2017-05-17 Surag Nair

Structured information extraction from scientific literature is crucial for capturing core concepts and emerging trends in specialized fields. While existing datasets aid model development, most focus on specific publication sections due to…

计算与语言 · 计算机科学 2026-04-06 Decheng Duan , Yingyi Zhang , Jitong Peng , Chengzhi Zhang