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Knowledge base provides a potential way to improve the intelligence of information retrieval (IR) systems, for that knowledge base has numerous relations between entities which can help the IR systems to conduct inference from one entity to…

计算与语言 · 计算机科学 2019-07-29 Hai Ye , Zhunchen Luo

Sentence-level relation extraction mainly aims to classify the relation between two entities in a sentence. The sentence-level relation extraction corpus often contains data that are difficult for the model to infer or noise data. In this…

计算与语言 · 计算机科学 2021-08-05 Seongsik Park , Harksoo Kim

Extracting relationships and interactions between different biological entities is still an extremely challenging problem but has not received much attention as much as extraction in other generic domains. In addition to the lack of…

计算与语言 · 计算机科学 2020-06-02 Abhinav Bhatt , Kaustubh D. Dhole

Knowledge graphs (KGs), containing many entity-relation-entity triples, provide rich information for downstream applications. Although extracting triples from unstructured texts has been widely explored, most of them require a large number…

计算与语言 · 计算机科学 2023-06-26 Chengmei Yang , Shuai Jiang , Bowei He , Chen Ma , Lianghua He

Cross-lingual Entity Linking (XEL), the problem of grounding mentions of entities in a foreign language text into an English knowledge base such as Wikipedia, has seen a lot of research in recent years, with a range of promising techniques.…

计算与语言 · 计算机科学 2020-10-08 Xingyu Fu , Weijia Shi , Xiaodong Yu , Zian Zhao , Dan Roth

This paper presents several strategies to automatically obtain additional examples for in-context learning of one-shot relation extraction. Specifically, we introduce a novel strategy for example selection, in which new examples are…

计算与语言 · 计算机科学 2026-01-29 Aunabil Chakma , Mihai Surdeanu , Eduardo Blanco

Many active learning and search approaches are intractable for large-scale industrial settings with billions of unlabeled examples. Existing approaches search globally for the optimal examples to label, scaling linearly or even…

Entity Linking (EL) is an essential task for semantic text understanding and information extraction. Popular methods separately address the Mention Detection (MD) and Entity Disambiguation (ED) stages of EL, without leveraging their mutual…

计算与语言 · 计算机科学 2018-08-30 Nikolaos Kolitsas , Octavian-Eugen Ganea , Thomas Hofmann

How to identify semantic relations among entities in a document when only a few labeled documents are available? Few-shot document-level relation extraction (FSDLRE) is crucial for addressing the pervasive data scarcity problem in…

计算与语言 · 计算机科学 2023-10-25 Shiao Meng , Xuming Hu , Aiwei Liu , Shu'ang Li , Fukun Ma , Yawen Yang , Lijie Wen

This paper proposes a novel prompt-based finetuning method (called DLM-SCS) for few-shot text classification by utilizing the discriminative language model ELECTRA that is pretrained to distinguish whether a token is original or generated.…

计算与语言 · 计算机科学 2022-10-25 Zhipeng Xie , Yahe Li

Few-shot learning often involves metric learning-based classifiers, which predict the image label by comparing the distance between the extracted feature vector and class representations. However, applying global pooling in the backend of…

计算机视觉与模式识别 · 计算机科学 2021-05-26 Inyong Koo , Minki Jeong , Changick Kim

Relation classification (RC) task is one of fundamental tasks of information extraction, aiming to detect the relation information between entity pairs in unstructured natural language text and generate structured data in the form of…

计算与语言 · 计算机科学 2021-01-12 Yan Xiao , Yaochu Jin , Kuangrong Hao

Handling long-context sequences efficiently remains a significant challenge in large language models (LLMs). Existing methods for token selection in sequence extrapolation either employ a permanent eviction strategy or select tokens by…

计算与语言 · 计算机科学 2025-02-21 Haoyu Wang , Tong Teng , Tianyu Guo , An Xiao , Duyu Tang , Hanting Chen , Yunhe Wang

Accurate segmentation of organelle instances from electron microscopy (EM) images plays an essential role in many neuroscience researches. However, practical scenarios usually suffer from high annotation costs, label scarcity, and large…

计算机视觉与模式识别 · 计算机科学 2024-04-02 Dafei Qiu , Shan Xiong , Jiajin Yi , Jialin Peng

Cross-lingual entity linking (XEL) is the task of finding referents in a target-language knowledge base (KB) for mentions extracted from source-language texts. The first step of (X)EL is candidate generation, which retrieves a list of…

计算与语言 · 计算机科学 2020-03-09 Shuyan Zhou , Shruti Rijhwani , John Wieting , Jaime Carbonell , Graham Neubig

Distant supervision provides a means to create a large number of weakly labeled data at low cost for relation classification. However, the resulting labeled instances are very noisy, containing data with wrong labels. Many approaches have…

计算与语言 · 计算机科学 2020-10-27 Zhenzhen Li , Jian-Yun Nie , Benyou Wang , Pan Du , Yuhan Zhang , Lixin Zou , Dongsheng Li

Entity resolution (ER) is the process of identifying records that refer to the same entities within one or across multiple databases. Numerous techniques have been developed to tackle ER challenges over the years, with recent emphasis…

数据库 · 计算机科学 2023-11-14 George Papadakis , Nishadi Kirielle , Peter Christen , Themis Palpanas

When combined with In-Context Learning, a technique that enables models to adapt to new tasks by incorporating task-specific examples or demonstrations directly within the input prompt, autoregressive language models have achieved good…

计算与语言 · 计算机科学 2024-10-18 Enzo Shiraishi , Raphael Y. de Camargo , Henrique L. P. Silva , Ronaldo C. Prati

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

Keyphrase extraction is the task of extracting a small set of phrases that best describe a document. Most existing benchmark datasets for the task typically have limited numbers of annotated documents, making it challenging to train…

计算与语言 · 计算机科学 2020-10-26 Tuan Manh Lai , Trung Bui , Doo Soon Kim , Quan Hung Tran
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