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Most work in relation extraction forms a prediction by looking at a short span of text within a single sentence containing a single entity pair mention. However, many relation types, particularly in biomedical text, are expressed across…

计算与语言 · 计算机科学 2017-11-17 Patrick Verga , Emma Strubell , Ofer Shai , Andrew McCallum

Differentiating relationships between entity pairs with limited labeled instances poses a significant challenge in few-shot relation classification. Representations of textual data extract rich information spanning the domain, entities, and…

计算与语言 · 计算机科学 2024-03-26 Philipp Borchert , Jochen De Weerdt , Marie-Francine Moens

Relation extraction is a Natural Language Processing task that aims to extract relationships from textual data. It is a critical step for information extraction. Due to its wide-scale applicability, research in relation extraction has…

计算与语言 · 计算机科学 2024-11-27 Anushka Swarup , Avanti Bhandarkar , Olivia P. Dizon-Paradis , Ronald Wilson , Damon L. Woodard

Patent retrieval influences several applications within engineering design research, education, and practice as well as applications that concern innovation, intellectual property, and knowledge management etc. In this article, we propose a…

信息检索 · 计算机科学 2022-11-04 L Siddharth , Guangtong Li , Jianxi Luo

Tables on the Web contain a vast amount of knowledge in a structured form. To tap into this valuable resource, we address the problem of table retrieval: answering an information need with a ranked list of tables. We investigate this…

信息检索 · 计算机科学 2021-05-14 Shuo Zhang , Krisztian Balog

In this work, we aim at equipping pre-trained language models with structured knowledge. We present two self-supervised tasks learning over raw text with the guidance from knowledge graphs. Building upon entity-level masked language models,…

计算与语言 · 计算机科学 2020-04-30 Tao Shen , Yi Mao , Pengcheng He , Guodong Long , Adam Trischler , Weizhu Chen

Relational Triple Extraction (RTE) is a fundamental task in Natural Language Processing (NLP). However, prior research has primarily focused on optimizing model performance, with limited efforts to understand the internal mechanisms driving…

计算与语言 · 计算机科学 2025-07-04 Xue Wen Tan , Stanley Kok

Aspect Sentiment Triplet Extraction (ASTE) deals with extracting opinion triplets, consisting of an opinion target or aspect, its associated sentiment, and the corresponding opinion term/span explaining the rationale behind the sentiment.…

计算与语言 · 计算机科学 2021-10-12 Rajdeep Mukherjee , Tapas Nayak , Yash Butala , Sourangshu Bhattacharya , Pawan Goyal

We address the task of entity-relationship (E-R) retrieval, i.e, given a query characterizing types of two or more entities and relationships between them, retrieve the relevant tuples of related entities. Answering E-R queries requires…

信息检索 · 计算机科学 2017-10-20 Pedro Saleiro , Natasa Milic-Frayling , Eduarda Mendes Rodrigues , Carlos Soares

Relation extraction (RE) aims to identify relations between entities mentioned in texts. Although large language models (LLMs) have demonstrated impressive in-context learning (ICL) abilities in various tasks, they still suffer from poor…

计算与语言 · 计算机科学 2024-04-30 Guozheng Li , Peng Wang , Wenjun Ke , Yikai Guo , Ke Ji , Ziyu Shang , Jiajun Liu , Zijie Xu

The entity alignment of science and technology patents aims to link the equivalent entities in the knowledge graph of different science and technology patent data sources. Most entity alignment methods only use graph neural network to…

计算与语言 · 计算机科学 2023-11-02 Runze Fang , Yawen Li , Yingxia Shao , Zeli Guan , Zhe Xue

Knowledge about entities and their interrelations is a crucial factor of success for tasks like question answering or text summarization. Publicly available knowledge graphs like Wikidata or DBpedia are, however, far from being complete. In…

信息检索 · 计算机科学 2021-02-16 Nicolas Heist , Heiko Paulheim

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…

计算与语言 · 计算机科学 2020-11-30 Jun Kuang , Yixin Cao , Jianbing Zheng , Xiangnan He , Ming Gao , Aoying Zhou

Evidence-based medicine, the practice in which healthcare professionals refer to the best available evidence when making decisions, forms the foundation of modern healthcare. However, it relies on labour-intensive systematic reviews, where…

计算与语言 · 计算机科学 2021-12-13 Jetsun Whitton , Anthony Hunter

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

Knowledge graphs have emerged as a sophisticated advancement and refinement of semantic networks, and their deployment is one of the critical methodologies in contemporary artificial intelligence. The construction of knowledge graphs is a…

人工智能 · 计算机科学 2024-05-07 Daqian Shi

Existing methods in relation extraction have leveraged the lexical features in the word sequence and the syntactic features in the parse tree. Though effective, the lexical features extracted from the successive word sequence may introduce…

计算与语言 · 计算机科学 2021-07-29 Mi Zhang , Tieyun Qian

Causal relation extraction of biomedical entities is one of the most complex tasks in biomedical text mining, which involves two kinds of information: entity relations and entity functions. One feasible approach is to take relation…

计算与语言 · 计算机科学 2022-08-03 Dongling Li , Pengchao Wu , Yuehu Dong , Jinghang Gu , Longhua Qian , Guodong Zhou

The enormous amount of discourse taking place online poses challenges to the functioning of a civil and informed public sphere. Efforts to standardize online discourse data, such as ClaimReview, are making available a wealth of new data…

社会与信息网络 · 计算机科学 2026-05-19 Matthew Sumpter , Giovanni Luca Ciampaglia

Contextual Relation Extraction (CRE) is mainly used for constructing a knowledge graph with a help of ontology. It performs various tasks such as semantic search, query answering, and textual entailment. Relation extraction identifies the…

计算与语言 · 计算机科学 2023-09-14 R. Priyadharshini , G. Jeyakodi , P. Shanthi Bala