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Document-level relation extraction (RE) aims to identify the relations between entities throughout an entire document. It needs complex reasoning skills to synthesize various knowledge such as coreferences and commonsense. Large-scale…

Computation and Language · Computer Science 2022-07-26 Xinyi Wang , Zitao Wang , Weijian Sun , Wei Hu

Extracting structured information from unstructured text is critical for many downstream NLP applications and is traditionally achieved by closed information extraction (cIE). However, existing approaches for cIE suffer from two…

Computation and Language · Computer Science 2024-04-22 Nacime Bouziani , Shubhi Tyagi , Joseph Fisher , Jens Lehmann , Andrea Pierleoni

Relation extraction task is a crucial and challenging aspect of Natural Language Processing. Several methods have surfaced as of late, exhibiting notable performance in addressing the task; however, most of these approaches rely on vast…

Computation and Language · Computer Science 2023-08-25 Fréjus A. A. Laleye , Loïc Rakotoson , Sylvain Massip

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…

Machine Learning · Computer Science 2020-09-09 Yucong Lin , Keming Lu , Yulin Chen , Chuan Hong , Sheng Yu

Most Reading Comprehension methods limit themselves to queries which can be answered using a single sentence, paragraph, or document. Enabling models to combine disjoint pieces of textual evidence would extend the scope of machine…

Computation and Language · Computer Science 2018-06-12 Johannes Welbl , Pontus Stenetorp , Sebastian Riedel

Query expansion is an effective approach for mitigating vocabulary mismatch between queries and documents in information retrieval. One recent line of research uses language models to generate query-related contexts for expansion. Along…

Computation and Language · Computer Science 2022-10-14 Linqing Liu , Minghan Li , Jimmy Lin , Sebastian Riedel , Pontus Stenetorp

We address the task of explaining relationships between two scientific documents using natural language text. This task requires modeling the complex content of long technical documents, deducing a relationship between these documents, and…

Computation and Language · Computer Science 2021-08-16 Kelvin Luu , Xinyi Wu , Rik Koncel-Kedziorski , Kyle Lo , Isabel Cachola , Noah A. Smith

Document-level relation extraction (DocRE) models generally use graph networks to implicitly model the reasoning skill (i.e., pattern recognition, logical reasoning, coreference reasoning, etc.) related to the relation between one entity…

Computation and Language · Computer Science 2021-06-04 Wang Xu , Kehai Chen , Tiejun Zhao

General purpose relation extractors, which can model arbitrary relations, are a core aspiration in information extraction. Efforts have been made to build general purpose extractors that represent relations with their surface forms, or…

Computation and Language · Computer Science 2019-06-10 Livio Baldini Soares , Nicholas FitzGerald , Jeffrey Ling , Tom Kwiatkowski

Relation extraction (RE) aims at extracting the relation between two entities from the text corpora. It is a crucial task for Knowledge Graph (KG) construction. Most existing methods predict the relation between an entity pair by learning…

Computation and Language · Computer Science 2020-11-30 Jun Kuang , Yixin Cao , Jianbing Zheng , Xiangnan He , Ming Gao , Aoying Zhou

Document-level relation extraction (DocRE) is a task that focuses on identifying relations between entities within a document. However, existing DocRE models often overlook the correlation between relations and lack a quantitative analysis…

Information Retrieval · Computer Science 2023-10-23 Yusheng Huang , Zhouhan Lin

A relation tuple consists of two entities and the relation between them, and often such tuples are found in unstructured text. There may be multiple relation tuples present in a text and they may share one or both entities among them.…

Computation and Language · Computer Science 2019-11-25 Tapas Nayak , Hwee Tou Ng

We introduce an extensive dataset for multilingual probing of morphological information in language models (247 tasks across 42 languages from 10 families), each consisting of a sentence with a target word and a morphological tag as the…

Computation and Language · Computer Science 2024-11-20 Judit Acs , Endre Hamerlik , Roy Schwartz , Noah A. Smith , Andras Kornai

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…

Computation and Language · Computer Science 2020-10-13 Zhijing Jin , Yongyi Yang , Xipeng Qiu , Zheng Zhang

Objective: To develop a high-throughput biomedical relation extraction system that takes advantage of the large language models'(LLMs) reading comprehension ability and biomedical world knowledge in a scalable and evidential manner.…

Computation and Language · Computer Science 2024-03-27 Songchi Zhou , Sheng Yu

In this paper, we present an end-to-end joint entity and relation extraction approach based on transformer-based language models. We apply the model to the task of linking mathematical symbols to their descriptions in LaTeX documents. In…

Computation and Language · Computer Science 2022-05-05 Nicholas Popovic , Walter Laurito , Michael Färber

In practical scenario, relation extraction needs to first identify entity pairs that have relation and then assign a correct relation class. However, the number of non-relation entity pairs in context (negative instances) usually far…

Computation and Language · Computer Science 2019-06-24 Wei Ye , Bo Li , Rui Xie , Zhonghao Sheng , Long Chen , Shikun Zhang

Relation extraction is an important but challenging task that aims to extract all hidden relational facts from the text. With the development of deep language models, relation extraction methods have achieved good performance on various…

Computation and Language · Computer Science 2022-08-17 Sheng Zhang , Patrick Ng , Zhiguo Wang , Bing Xiang

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…

Computation and Language · Computer Science 2022-10-25 Jiacheng Li , Yannis Katsis , Tyler Baldwin , Ho-Cheol Kim , Andrew Bartko , Julian McAuley , Chun-Nan Hsu

This paper contributes a joint embedding model for predicting relations between a pair of entities in the scenario of relation inference. It differs from most stand-alone approaches which separately operate on either knowledge bases or free…

Computation and Language · Computer Science 2015-07-08 Miao Fan , Kai Cao , Yifan He , Ralph Grishman