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Few-shot learning is a challenging problem since only a few examples are provided to recognize a new class. Several recent studies exploit additional semantic information, e.g. text embeddings of class names, to address the issue of rare…

计算机视觉与模式识别 · 计算机科学 2023-03-27 Wentao Chen , Chenyang Si , Zhang Zhang , Liang Wang , Zilei Wang , Tieniu Tan

Large Language Models (LLMs) have provided a new pathway for Named Entity Recognition (NER) tasks. Compared with fine-tuning, LLM-powered prompting methods avoid the need for training, conserve substantial computational resources, and rely…

计算与语言 · 计算机科学 2025-04-02 Yongjian Tang , Rakebul Hasan , Thomas Runkler

Recently, considerable literature has grown up around the theme of few-shot named entity recognition (NER), but little published benchmark data specifically focused on the practical and challenging task. Current approaches collect existing…

计算与语言 · 计算机科学 2021-09-02 Ning Ding , Guangwei Xu , Yulin Chen , Xiaobin Wang , Xu Han , Pengjun Xie , Hai-Tao Zheng , Zhiyuan Liu

State-of-the-art semantic segmentation methods require sufficient labeled data to achieve good results and hardly work on unseen classes without fine-tuning. Few-shot segmentation is thus proposed to tackle this problem by learning a model…

计算机视觉与模式识别 · 计算机科学 2020-08-05 Zhuotao Tian , Hengshuang Zhao , Michelle Shu , Zhicheng Yang , Ruiyu Li , Jiaya Jia

We introduce FewTopNER, a novel framework that integrates few-shot named entity recognition (NER) with topic-aware contextual modeling to address the challenges of cross-lingual and low-resource scenarios. FewTopNER leverages a shared…

计算与语言 · 计算机科学 2025-02-05 Ibrahim Bouabdallaoui , Fatima Guerouate , Samya Bouhaddour , Chaimae Saadi , Mohammed Sbihi

Few-shot semantic segmentation is vital for deep learning-based infrastructure inspection applications, where labeled training examples are scarce and expensive. Although existing deep learning frameworks perform well, the need for…

计算机视觉与模式识别 · 计算机科学 2025-10-08 Christina Thrainer , Md Meftahul Ferdaus , Mahdi Abdelguerfi , Christian Guetl , Steven Sloan , Kendall N. Niles , Ken Pathak

Few-shot segmentation targets to segment new classes with few annotated images provided. It is more challenging than traditional semantic segmentation tasks that segment known classes with abundant annotated images. In this paper, we…

计算机视觉与模式识别 · 计算机科学 2020-05-12 Jinlu Liu , Yongqiang Qin

In this work, we propose a two-stage method for named entity recognition (NER), especially for nested NER. We borrowed the idea from the two-stage Object Detection in computer vision and the way how they construct the loss function. First,…

计算与语言 · 计算机科学 2021-01-28 Bing Li

Despite the huge and continuous advances in computational linguistics, the lack of annotated data for Named Entity Recognition (NER) is still a challenging issue, especially in low-resource languages and when domain knowledge is required…

计算与语言 · 计算机科学 2021-11-25 Valerio La Gatta , Vincenzo Moscato , Marco Postiglione , Giancarlo Sperlì

Span-based joint extraction simultaneously conducts named entity recognition (NER) and relation extraction (RE) in text span form. However, since previous span-based models rely on span-level classifications, they cannot benefit from…

计算与语言 · 计算机科学 2022-10-25 Bin Ji , Shasha Li , Hao Xu , Jie Yu , Jun Ma , Huijun Liu , Jing Yang

Nested named entity recognition (NER) has been receiving increasing attention. Recently, (Fu et al, 2021) adapt a span-based constituency parser to tackle nested NER. They treat nested entities as partially-observed constituency trees and…

计算与语言 · 计算机科学 2022-03-10 Chao Lou , Songlin Yang , Kewei Tu

Entity linking aims to link ambiguous mentions to their corresponding entities in a knowledge base, which is significant and fundamental for various downstream applications, e.g., knowledge base completion, question answering, and…

计算与语言 · 计算机科学 2022-07-20 Xiuxing Li , Zhenyu Li , Zhengyan Zhang , Ning Liu , Haitao Yuan , Wei Zhang , Zhiyuan Liu , Jianyong Wang

Named Entity Recognition (NER) is a fundamental problem in natural language processing (NLP). However, the task of extracting longer entity spans (e.g., awards) from extended texts (e.g., homepages) is barely explored. Current NER methods…

计算与语言 · 计算机科学 2025-02-12 Yelin Chen , Fanjin Zhang , Jie Tang

Few-shot semantic segmentation aims to segment novel-class objects in a given query image with only a few labeled support images. Most advanced solutions exploit a metric learning framework that performs segmentation through matching each…

计算机视觉与模式识别 · 计算机科学 2023-01-18 Jiacheng Chen , Bin-Bin Gao , Zongqing Lu , Jing-Hao Xue , Chengjie Wang , Qingmin Liao

Few-shot segmentation~(FSS) performance has been extensively promoted by introducing episodic training and class-wise prototypes. However, the FSS problem remains challenging due to three limitations: (1) Models are distracted by…

计算机视觉与模式识别 · 计算机科学 2021-06-02 Jian-Wei Zhang , Lei Lv , Yawei Luo , Hao-Zhe Feng , Yi Yang , Wei Chen

The aim of Named Entity Recognition (NER) is to identify references of named entities in unstructured documents, and to classify them into pre-defined semantic categories. NER often aids from added background knowledge in the form of…

计算与语言 · 计算机科学 2015-11-24 S. Thenmalar , J. Balaji , T. V. Geetha

Few-shot named entity recognition (NER) has shown remarkable progress in identifying entities in low-resource domains. However, few-shot NER methods still struggle with out-of-domain (OOD) examples due to their reliance on manual labeling…

信息检索 · 计算机科学 2023-10-17 Zihan Wang , Ziqi Zhao , Zhumin Chen , Pengjie Ren , Maarten de Rijke , Zhaochun Ren

Current state-of-the-art models for named entity recognition (NER) are neural models with a conditional random field (CRF) as the final layer. Entities are represented as per-token labels with a special structure in order to decode them…

计算与语言 · 计算机科学 2020-10-12 Brian Lester , Daniel Pressel , Amy Hemmeter , Sagnik Ray Choudhury , Srinivas Bangalore

Prompt learning is a new paradigm for utilizing pre-trained language models and has achieved great success in many tasks. To adopt prompt learning in the NER task, two kinds of methods have been explored from a pair of symmetric…

计算与语言 · 计算机科学 2023-05-29 Yongliang Shen , Zeqi Tan , Shuhui Wu , Wenqi Zhang , Rongsheng Zhang , Yadong Xi , Weiming Lu , Yueting Zhuang

We introduce a new scientific named entity recognizer called SEPT, which stands for Span Extractor with Pre-trained Transformers. In recent papers, span extractors have been demonstrated to be a powerful model compared with sequence…

计算与语言 · 计算机科学 2020-10-14 Tan Yan , Heyan Huang , Xian-Ling Mao