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Knowledge graphs (KGs) have been successfully applied to the analysis of complex scientific and technological domains, with automatic KG generation methods typically building upon relation extraction models capturing fine-grained relations…

计算与语言 · 计算机科学 2025-10-15 Vanni Zavarella , Juan Carlos Gamero-Salinas , Sergio Consoli

Dependency trees help relation extraction models capture long-range relations between words. However, existing dependency-based models either neglect crucial information (e.g., negation) by pruning the dependency trees too aggressively, or…

计算与语言 · 计算机科学 2018-09-28 Yuhao Zhang , Peng Qi , Christopher D. Manning

Recent years have witnessed the burgeoning of pretrained language models (LMs) for text-based natural language (NL) understanding tasks. Such models are typically trained on free-form NL text, hence may not be suitable for tasks like…

计算与语言 · 计算机科学 2020-05-19 Pengcheng Yin , Graham Neubig , Wen-tau Yih , Sebastian Riedel

Document-level relation extraction (DocRE) poses the challenge of identifying relationships between entities within a document as opposed to the traditional RE setting where a single sentence is input. Existing approaches rely on logical…

信息检索 · 计算机科学 2024-01-23 Monika Jain , Raghava Mutharaju , Ramakanth Kavuluru , Kuldeep Singh

The task of $\textit{keyword extraction}$ is often an important initial step in unsupervised information extraction, forming the basis for tasks such as topic modeling or document classification. While recent methods have proven to be quite…

计算与语言 · 计算机科学 2024-07-22 Stephen Meisenbacher , Tim Schopf , Weixin Yan , Patrick Holl , Florian Matthes

Moral values play a fundamental role in how we evaluate information, make decisions, and form judgements around important social issues. Controversial topics, including vaccination, abortion, racism, and sexual orientation, often elicit…

计算与语言 · 计算机科学 2024-07-22 Vjosa Preniqi , Iacopo Ghinassi , Julia Ive , Charalampos Saitis , Kyriaki Kalimeri

Pre-trained language models have contributed significantly to relation extraction by demonstrating remarkable few-shot learning abilities. However, prompt tuning methods for relation extraction may still fail to generalize to those rare or…

计算与语言 · 计算机科学 2023-09-20 Xiang Chen , Lei Li , Ningyu Zhang , Chuanqi Tan , Fei Huang , Luo Si , Huajun Chen

We conduct an empirical analysis of neural network architectures and data transfer strategies for causal relation extraction. By conducting experiments with various contextual embedding layers and architectural components, we show that a…

计算与语言 · 计算机科学 2025-03-11 Sydney Anuyah , Jack Vanschaik , Palak Jain , Sawyer Lehman , Sunandan Chakraborty

Relation classification is an important NLP task to extract relations between entities. The state-of-the-art methods for relation classification are primarily based on Convolutional or Recurrent Neural Networks. Recently, the pre-trained…

计算与语言 · 计算机科学 2019-05-22 Shanchan Wu , Yifan He

With the development and business adoption of knowledge graph, there is an increasing demand for extracting entities and relations of knowledge graphs from unstructured domain documents. This makes the automatic knowledge extraction for…

计算与语言 · 计算机科学 2021-03-02 Wang Zijia , Li Ye , Zhu Zhongkai

The extraction of information from semi-structured text, such as resumes, has long been a challenge due to the diverse formatting styles and subjective content organization. Conventional solutions rely on specialized logic tailored for…

人工智能 · 计算机科学 2025-02-26 Sirisha Velampalli , Chandrashekar Muniyappa

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

Graph-based semi-supervised learning has proven to be an effective approach for query-focused multi-document summarization. The problem of previous semi-supervised learning is that sentences are ranked without considering the higher level…

计算与语言 · 计算机科学 2014-01-03 Jiwei Li , Sujian Li

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

The recent advancement of pre-trained Transformer models has propelled the development of effective text mining models across various biomedical tasks. However, these models are primarily learned on the textual data and often lack the…

计算与语言 · 计算机科学 2021-07-02 Sriram Pingali , Shweta Yadav , Pratik Dutta , Sriparna Saha

The rapid growth of web pages and the increasing complexity of their structure poses a challenge for web mining models. Web mining models are required to understand the semi-structured web pages, particularly when little is known about the…

计算与语言 · 计算机科学 2023-05-24 Zilong Wang , Jingbo Shang

We introduce SpERT, an attention model for span-based joint entity and relation extraction. Our key contribution is a light-weight reasoning on BERT embeddings, which features entity recognition and filtering, as well as relation…

计算与语言 · 计算机科学 2021-06-30 Markus Eberts , Adrian Ulges

Hypergraphs are characterized by complex topological structure, representing higher-order interactions among multiple entities through hyperedges. Lately, hypergraph-based deep learning methods to learn informative data representations for…

机器学习 · 计算机科学 2024-09-30 Adrián Bazaga , Pietro Liò , Gos Micklem

Causal knowledge extraction is the task of extracting relevant causes and effects from text by detecting the causal relation. Although this task is important for language understanding and knowledge discovery, recent works in this domain…

计算与语言 · 计算机科学 2023-08-09 Anik Saha , Oktie Hassanzadeh , Alex Gittens , Jian Ni , Kavitha Srinivas , Bulent Yener

The Web has been chosen as a basic infrastructure to gain the social structure information, through the social network extraction, from all over the world. However, most of the web documents are unstructured and lack of semantics. Moreover,…

社会与信息网络 · 计算机科学 2012-11-27 Mahyuddin K. M. Nasution , Shahrul Azman Noah