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Relation extraction systems require large amounts of labeled examples which are costly to annotate. In this work we reformulate relation extraction as an entailment task, with simple, hand-made, verbalizations of relations produced in less…

计算与语言 · 计算机科学 2021-09-09 Oscar Sainz , Oier Lopez de Lacalle , Gorka Labaka , Ander Barrena , Eneko Agirre

Knowledge-based question answering relies on the availability of facts, the majority of which cannot be found in structured sources (e.g. Wikipedia info-boxes, Wikidata). One of the major components of extracting facts from unstructured…

计算与语言 · 计算机科学 2018-03-28 Christos Christodoulopoulos , Arpit Mittal

Few-shot Continual Relation Extraction is a crucial challenge for enabling AI systems to identify and adapt to evolving relationships in dynamic real-world domains. Traditional memory-based approaches often overfit to limited samples,…

计算与语言 · 计算机科学 2025-03-03 Nguyen Xuan Thanh , Anh Duc Le , Quyen Tran , Thanh-Thien Le , Linh Ngo Van , Thien Huu Nguyen

We present an approach to minimally supervised relation extraction that combines the benefits of learned representations and structured learning, and accurately predicts sentence-level relation mentions given only proposition-level…

计算与语言 · 计算机科学 2019-11-20 Fan Bai , Alan Ritter

Few-shot relation extraction aims to learn to identify the relation between two entities based on very limited training examples. Recent efforts found that textual labels (i.e., relation names and relation descriptions) could be extremely…

计算与语言 · 计算机科学 2022-10-26 Peiyuan Zhang , Wei Lu

Despite its popularity in sentence-level relation extraction, distantly supervised data is rarely utilized by existing work in document-level relation extraction due to its noisy nature and low information density. Among its current…

计算与语言 · 计算机科学 2024-07-02 Xiangyu Lin , Weijia Jia , Zhiguo Gong

Distant supervision (DS) has been widely used to generate auto-labeled data for sentence-level relation extraction (RE), which improves RE performance. However, the existing success of DS cannot be directly transferred to the more…

计算与语言 · 计算机科学 2020-11-10 Chaojun Xiao , Yuan Yao , Ruobing Xie , Xu Han , Zhiyuan Liu , Maosong Sun , Fen Lin , Leyu Lin

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

Transformer-based language models have achieved remarkable success in few-shot in-context learning and drawn a lot of research interest. However, these models' performance greatly depends on the choice of the example prompts and also has…

计算与语言 · 计算机科学 2023-06-21 Genta Indra Winata , Liang-Kang Huang , Soumya Vadlamannati , Yash Chandarana

This paper investigates distantly supervised relation extraction in federated settings. Previous studies focus on distant supervision under the assumption of centralized training, which requires collecting texts from different platforms and…

计算与语言 · 计算机科学 2020-08-13 Dianbo Sui , Yubo Chen , Kang Liu , Jun Zhao

We propose a zero-shot learning relation classification (ZSLRC) framework that improves on state-of-the-art by its ability to recognize novel relations that were not present in training data. The zero-shot learning approach mimics the way…

计算与语言 · 计算机科学 2021-11-22 Jiaying Gong , Hoda Eldardiry

Zero-shot cross-lingual transfer utilizing multilingual LLMs has become a popular learning paradigm for low-resource languages with no labeled training data. However, for NLP tasks that involve fine-grained predictions on words and phrases,…

计算与语言 · 计算机科学 2024-02-06 Duong Minh Le , Yang Chen , Alan Ritter , Wei Xu

Document-level relation extraction aims at inferring structured human knowledge from textual documents. State-of-the-art methods for this task use pre-trained language models (LMs) via fine-tuning, yet fine-tuning is computationally…

计算与语言 · 计算机科学 2024-10-03 Yilmazcan Ozyurt , Stefan Feuerriegel , Ce Zhang

While billions of non-English speaking users rely on search engines every day, the problem of ad-hoc information retrieval is rarely studied for non-English languages. This is primarily due to a lack of data set that are suitable to train…

信息检索 · 计算机科学 2020-05-01 Sean MacAvaney , Luca Soldaini , Nazli Goharian

Keyword extraction is the task of retrieving words that are essential to the content of a given document. Researchers proposed various approaches to tackle this problem. At the top-most level, approaches are divided into ones that require…

计算与语言 · 计算机科学 2022-02-15 Boshko Koloski , Senja Pollak , Blaž Škrlj , Matej Martinc

Distant supervision for relation extraction enables one to effectively acquire structured relations out of very large text corpora with less human efforts. Nevertheless, most of the prior-art models for such tasks assume that the given text…

计算与语言 · 计算机科学 2019-09-13 Junfan Chen , Richong Zhang , Yongyi Mao , Hongyu Guo , Jie Xu

Scarcity of labeled data is one of the most frequent problems faced in machine learning. This is particularly true in relation extraction in text mining, where large corpora of texts exists in many application domains, while labeling of…

机器学习 · 计算机科学 2018-07-13 Linara Adilova , Sven Giesselbach , Stefan Rüping

Existing neural relation extraction (NRE) models rely on distant supervision and suffer from wrong labeling problems. In this paper, we propose a novel adversarial training mechanism over instances for relation extraction to alleviate the…

计算与语言 · 计算机科学 2018-05-29 Xu Han , Zhiyuan Liu , Maosong Sun

Recent multilingual pre-trained models have shown better performance in various multilingual tasks. However, these models perform poorly on multilingual retrieval tasks due to lacking multilingual training data. In this paper, we propose to…

信息检索 · 计算机科学 2023-03-28 Houxing Ren , Linjun Shou , Jian Pei , Ning Wu , Ming Gong , Daxin Jiang

We show that relation extraction can be reduced to answering simple reading comprehension questions, by associating one or more natural-language questions with each relation slot. This reduction has several advantages: we can (1) learn…

计算与语言 · 计算机科学 2017-06-14 Omer Levy , Minjoon Seo , Eunsol Choi , Luke Zettlemoyer
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