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Few-shot named entity recognition (NER) systems recognize entities using a few labeled training examples. The general pipeline consists of a span detector to identify entity spans in text and an entity-type classifier to assign types to…

Computation and Language · Computer Science 2024-06-21 Chang Tian , Wenpeng Yin , Dan Li , Marie-Francine Moens

While Named Entity Recognition (NER) is a widely studied task, making inferences of entities with only a few labeled data has been challenging, especially for entities with nested structures. Unlike flat entities, entities and their nested…

Computation and Language · Computer Science 2022-12-05 Hong Ming , Jiaoyun Yang , Lili Jiang , Yan Pan , Ning An

Few-shot named entity recognition (NER) detects named entities within text using only a few annotated examples. One promising line of research is to leverage natural language descriptions of each entity type: the common label PER might, for…

Computation and Language · Computer Science 2024-03-22 Jonas Golde , Felix Hamborg , Alan Akbik

Named Entity Recognition (NER) and Relation Classification (RC) are important steps in extracting information from unstructured text and formatting it into a machine-readable format. We present a survey of recent deep learning models that…

Computation and Language · Computer Science 2024-03-28 Sakher Khalil Alqaaidi , Elika Bozorgi , Afsaneh Shams , Krzysztof Kochut

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

Computer Vision and Pattern Recognition · Computer Science 2021-04-29 Jiacheng Chen , Bin-Bin Gao , Zongqing Lu , Jing-Hao Xue , Chengjie Wang , Qingmin Liao

Few-shot Named Entity Recognition (NER), the task of identifying named entities with only a limited amount of labeled data, has gained increasing significance in natural language processing. While existing methodologies have shown some…

Computation and Language · Computer Science 2024-08-26 Yafeng Zhang , Zilan Yu , Yuang Huang , Jing Tang

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…

Computer Vision and Pattern Recognition · Computer Science 2023-03-27 Wentao Chen , Chenyang Si , Zhang Zhang , Liang Wang , Zilei Wang , Tieniu Tan

Few-shot segmentation enables the model to recognize unseen classes with few annotated examples. Most existing methods adopt prototype learning architecture, where support prototype vectors are expanded and concatenated with query features…

Computer Vision and Pattern Recognition · Computer Science 2022-03-09 Xiaoyu Zhao , Xiaoqian Chen , Zhiqiang Gong , Wen Yao , Yunyang Zhang , Xiaohu Zheng

Few-shot object detection (FSOD) aims to classify and detect few images of novel categories. Existing meta-learning methods insufficiently exploit features between support and query images owing to structural limitations. We propose a…

Computer Vision and Pattern Recognition · Computer Science 2022-12-15 Dongwoo Park , Jong-Min Lee

Few-shot NER needs to effectively capture information from limited instances and transfer useful knowledge from external resources. In this paper, we propose a self-describing mechanism for few-shot NER, which can effectively leverage…

Computation and Language · Computer Science 2022-03-24 Jiawei Chen , Qing Liu , Hongyu Lin , Xianpei Han , Le Sun

Fine-tuning pre-trained language models has recently become a common practice in building NLP models for various tasks, especially few-shot tasks. We argue that under the few-shot setting, formulating fine-tuning closer to the pre-training…

Computation and Language · Computer Science 2022-11-01 Zihan Wang , Kewen Zhao , Zilong Wang , Jingbo Shang

Few-shot named entity recognition (NER) enables us to build a NER system for a new domain using very few labeled examples. However, existing prototypical networks for this task suffer from roughly estimated label dependency and closely…

Computation and Language · Computer Science 2022-08-18 Bin Ji , Shasha Li , Shaoduo Gan , Jie Yu , Jun Ma , Huijun Liu

Few-shot named entity recognition (NER) aims at identifying named entities based on only few labeled instances. Current few-shot NER methods focus on leveraging existing datasets in the rich-resource domains which might fail in a…

Computation and Language · Computer Science 2022-10-14 Zeng Yang , Linhai Zhang , Deyu Zhou

Few-shot Named Entity Recognition (NER) is imperative for entity tagging in limited resource domains and thus received proper attention in recent years. Existing approaches for few-shot NER are evaluated mainly under in-domain settings. In…

Computation and Language · Computer Science 2023-12-27 Linyi Yang , Lifan Yuan , Leyang Cui , Wenyang Gao , Yue Zhang

Cross-lingual Named Entity Recognition (NER) has recently become a research hotspot because it can alleviate the data-hungry problem for low-resource languages. However, few researches have focused on the scenario where the source-language…

Computation and Language · Computer Science 2022-04-05 Yingwen Fu , Nankai Lin , Ziyu Yang , Shengyi Jiang

Few-Shot learning aims to train and optimize a model that can adapt to unseen visual classes with only a few labeled examples. The existing few-shot learning (FSL) methods, heavily rely only on visual data, thus fail to capture the semantic…

Computer Vision and Pattern Recognition · Computer Science 2022-10-21 Mohamed Afham , Ranga Rodrigo

Few-shot text classification has attracted great interest in both academia and industry due to the lack of labeled data in many fields. Different from general text classification (e.g., topic classification), few-shot sentiment…

Computation and Language · Computer Science 2023-12-19 Jingyi Zhou , Jie Zhou , Jiabao Zhao , Siyin Wang , Haijun Shan , Gui Tao , Qi Zhang , Xuanjing Huang

Few-shot Intent Detection is challenging due to the scarcity of available annotated utterances. Although recent works demonstrate that multi-level matching plays an important role in transferring learned knowledge from seen training classes…

Computation and Language · Computer Science 2020-10-13 Hoang Nguyen , Chenwei Zhang , Congying Xia , Philip S. Yu

We present a novel approach to named entity recognition (NER) in the presence of scarce data that we call example-based NER. Our train-free few-shot learning approach takes inspiration from question-answering to identify entity spans in a…

Computation and Language · Computer Science 2020-08-25 Morteza Ziyadi , Yuting Sun , Abhishek Goswami , Jade Huang , Weizhu Chen

Zero-shot cross-lingual named entity recognition (NER) aims at transferring knowledge from annotated and rich-resource data in source languages to unlabeled and lean-resource data in target languages. Existing mainstream methods based on…

Computation and Language · Computer Science 2022-12-08 Jun-Yu Ma , Beiduo Chen , Jia-Chen Gu , Zhen-Hua Ling , Wu Guo , Quan Liu , Zhigang Chen , Cong Liu