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Relation extraction typically aims to extract semantic relationships between entities from the unstructured text. One of the most essential data sources for relation extraction is the spoken language, such as interviews and dialogues.…

计算与语言 · 计算机科学 2022-10-18 Tongtong Wu , Guitao Wang , Jinming Zhao , Zhaoran Liu , Guilin Qi , Yuan-Fang Li , Gholamreza Haffari

Low-resource machine translation requires methods that differ from those used for high-resource languages. This paper proposes a novel in-context learning approach to support low-resource machine translation of the Coptic language to…

计算与语言 · 计算机科学 2026-05-28 Abhishek Purushothama , Emma Thronson , Alexia Guo , Amir Zeldes

Methods for unsupervised hypernym detection may broadly be categorized according to two paradigms: pattern-based and distributional methods. In this paper, we study the performance of both approaches on several hypernymy tasks and find that…

计算与语言 · 计算机科学 2018-06-11 Stephen Roller , Douwe Kiela , Maximilian Nickel

Knowledge-enhanced pre-trained models for language representation have been shown to be more effective in knowledge base construction tasks (i.e.,~relation extraction) than language models such as BERT. These knowledge-enhanced language…

计算与语言 · 计算机科学 2022-10-25 Jiacheng Li , Yannis Katsis , Tyler Baldwin , Ho-Cheol Kim , Andrew Bartko , Julian McAuley , Chun-Nan Hsu

Information retrieval is an important application area of natural-language processing where one encounters the genuine challenge of processing large quantities of unrestricted natural-language text. This paper reports on the application of…

cmp-lg · 计算机科学 2008-02-03 David A. Evans , Chengxiang Zhai

Relation Extraction (RE) aims at recognizing the relation between pairs of entities mentioned in a text. Advances in LLMs have had a tremendous impact on NLP. In this work, we propose a textual data augmentation framework called PGA for…

计算与语言 · 计算机科学 2024-06-03 Yang Zhou , Shimin Shan , Hongkui Wei , Zhehuan Zhao , Wenshuo Feng

To retrieve more relevant, appropriate and useful documents given a query, finding clues about that query through the text is crucial. Recent deep learning models regard the task as a term-level matching problem, which seeks exact or…

信息检索 · 计算机科学 2021-02-01 Yufeng Zhang , Jinghao Zhang , Zeyu Cui , Shu Wu , Liang Wang

Large language models record impressive performance on many natural language processing tasks. However, their knowledge capacity is limited to the pretraining corpus. Retrieval augmentation offers an effective solution by retrieving context…

计算与语言 · 计算机科学 2023-11-22 Sai Munikoti , Anurag Acharya , Sridevi Wagle , Sameera Horawalavithana

Current methods to extract relational triples directly make a prediction based on a possible entity pair in a raw sentence without depending on entity recognition. The task suffers from a serious semantic overlapping problem, in which…

计算与语言 · 计算机科学 2024-10-28 Xiaocheng Luo , Yanping Chen , Ruixue Tang , Caiwei Yang , Ruizhang Huang , Yongbin Qin

This paper presents a novel approach to the acquisition of language models from corpora. The framework builds on Cobweb, an early system for constructing taxonomic hierarchies of probabilistic concepts that used a tabular, attribute-value…

计算与语言 · 计算机科学 2022-12-23 Christopher J. MacLellan , Peter Matsakis , Pat Langley

The BEIR dataset is a large, heterogeneous benchmark for Information Retrieval (IR) in zero-shot settings, garnering considerable attention within the research community. However, BEIR and analogous datasets are predominantly restricted to…

信息检索 · 计算机科学 2024-05-17 Konrad Wojtasik , Vadim Shishkin , Kacper Wołowiec , Arkadiusz Janz , Maciej Piasecki

Analysing the generalisation capabilities of relation extraction (RE) models is crucial for assessing whether they learn robust relational patterns or rely on spurious correlations. Our cross-dataset experiments find that RE models struggle…

计算与语言 · 计算机科学 2025-12-16 Varvara Arzt , Allan Hanbury , Michael Wiegand , Gábor Recski , Terra Blevins

In this study, a novel method for extracting named entities and relations from unstructured text based on the table representation is presented. By using contextualized word embeddings, the proposed method computes representations for…

计算与语言 · 计算机科学 2022-01-28 Youmi Ma , Tatsuya Hiraoka , Naoaki Okazaki

Syntax is a latent hierarchical structure which underpins the robust and compositional nature of human language. In this work, we explore the hypothesis that syntactic dependencies can be represented in language model attention…

计算与语言 · 计算机科学 2023-10-24 Jasper Jian , Siva Reddy

We focus on Text-to-SQL semantic parsing from the perspective of retrieval-augmented generation. Motivated by challenges related to the size of commercial database schemata and the deployability of business intelligence solutions, we…

计算与语言 · 计算机科学 2024-11-05 Zhili Shen , Pavlos Vougiouklis , Chenxin Diao , Kaustubh Vyas , Yuanyi Ji , Jeff Z. Pan

Implicit discourse relation recognition involves determining relationships that hold between spans of text that are not linked by an explicit discourse connective. In recent years, the pre-train, prompt, and predict paradigm has emerged as…

计算与语言 · 计算机科学 2024-11-25 Wanqiu Long , Bonnie Webber

Relation extraction (RE) is a crucial task in natural language processing (NLP) that aims to identify and classify relationships between entities mentioned in text. In the financial domain, relation extraction plays a vital role in…

计算与语言 · 计算机科学 2023-07-24 Pawan Kumar Rajpoot , Ankur Parikh

Relation extraction (RE) has achieved remarkable progress with the help of pre-trained language models. However, existing RE models are usually incapable of handling two situations: implicit expressions and long-tail relation classes,…

计算与语言 · 计算机科学 2023-10-30 Pawan Kumar Rajpoot , Ankur Parikh

Aspect based sentiment analysis (ABSA) deals with the identification of the sentiment polarity of a review sentence towards a given aspect. Deep Learning sequential models like RNN, LSTM, and GRU are current state-of-the-art methods for…

计算与语言 · 计算机科学 2022-08-05 Ashish Kumar , Vasundhra Dahiya , Aditi Sharan

Large language models augmented with task-relevant documents have demonstrated impressive performance on knowledge-intensive tasks. However, regarding how to obtain effective documents, the existing methods are mainly divided into two…

计算与语言 · 计算机科学 2023-10-10 Zhangyin Feng , Xiaocheng Feng , Dezhi Zhao , Maojin Yang , Bing Qin