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In this work, we focus on a more challenging few-shot intent detection scenario where many intents are fine-grained and semantically similar. We present a simple yet effective few-shot intent detection schema via contrastive pre-training…

计算与语言 · 计算机科学 2021-09-15 Jianguo Zhang , Trung Bui , Seunghyun Yoon , Xiang Chen , Zhiwei Liu , Congying Xia , Quan Hung Tran , Walter Chang , Philip Yu

Few-shot point cloud 3D object detection (FS3D) aims to identify and localise objects of novel classes from point clouds, using knowledge learnt from annotated base classes and novel classes with very few annotations. Thus far, this…

计算机视觉与模式识别 · 计算机科学 2024-09-02 Xuejing Li , Weijia Zhang , Chao Ma

Few-shot Named Entity Recognition (NER) exploits only a handful of annotations to identify and classify named entity mentions. Prototypical network shows superior performance on few-shot NER. However, existing prototypical methods fail to…

计算与语言 · 计算机科学 2021-06-30 Meihan Tong , Shuai Wang , Bin Xu , Yixin Cao , Minghui Liu , Lei Hou , Juanzi Li

Few-shot named entity recognition (NER) exploits limited annotated instances to identify named mentions. Effectively transferring the internal or external resources thus becomes the key to few-shot NER. While the existing prompt tuning…

计算与语言 · 计算机科学 2023-06-13 Jiang Liu , Hao Fei , Fei Li , Jingye Li , Bobo Li , Liang Zhao , Chong Teng , Donghong Ji

Prototypical network for Few shot learning tries to learn an embedding function in the encoder that embeds images with similar features close to one another in the embedding space. However, in this process, the support set samples for a…

计算机视觉与模式识别 · 计算机科学 2022-11-23 Manas Gogoi , Sambhavi Tiwari , Shekhar Verma

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

We study the problem of few shot learning for named entity recognition. Specifically, we leverage the semantic information in the names of the labels as a way of giving the model additional signal and enriched priors. We propose a neural…

计算与语言 · 计算机科学 2022-03-18 Jie Ma , Miguel Ballesteros , Srikanth Doss , Rishita Anubhai , Sunil Mallya , Yaser Al-Onaizan , Dan Roth

Incorporating large-scale pre-trained models with the prototypical neural networks is a de-facto paradigm in few-shot named entity recognition. Existing methods, unfortunately, are not aware of the fact that embeddings from pre-trained…

计算与语言 · 计算机科学 2022-11-08 Youcheng Huang , Wenqiang Lei , Jie Fu , Jiancheng Lv

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

In a surprising turn, Large Language Models (LLMs) together with a growing arsenal of prompt-based heuristics now offer powerful off-the-shelf approaches providing few-shot solutions to myriad classic NLP problems. However, despite…

计算与语言 · 计算机科学 2023-06-21 Dhananjay Ashok , Zachary C. Lipton

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

Few-shot text classification has recently been promoted by the meta-learning paradigm which aims to identify target classes with knowledge transferred from source classes with sets of small tasks named episodes. Despite their success,…

计算与语言 · 计算机科学 2023-05-17 Junfan Chen , Richong Zhang , Yongyi Mao , Jie Xu

Few-shot object detection aims to detect instances of specific categories in a query image with only a handful of support samples. Although this takes less effort than obtaining enough annotated images for supervised object detection, it…

计算机视觉与模式识别 · 计算机科学 2021-09-17 Hojun Lee , Myunggi Lee , Nojun Kwak

Named Entity Recognition (NER) frequently suffers from the problem of insufficient labeled data, particularly in fine-grained NER scenarios. Although $K$-shot learning techniques can be applied, their performance tends to saturate when the…

计算与语言 · 计算机科学 2023-11-14 Su Ah Lee , Seokjin Oh , Woohwan Jung

Contrastive learning is a discriminative approach that aims at grouping similar samples closer and diverse samples far from each other. It it an efficient technique to train an encoder generating distinguishable and informative…

计算机视觉与模式识别 · 计算机科学 2021-07-19 Qing Chen , Jian Zhang

We study the named entity recognition (NER) problem under the extremely weak supervision (XWS) setting, where only one example entity per type is given in a context-free way. While one can see that XWS is lighter than one-shot in terms of…

计算与语言 · 计算机科学 2023-11-07 Letian Peng , Zihan Wang , Jingbo Shang

Standard few-shot relation classification (RC) is designed to learn a robust classifier with only few labeled data for each class. However, previous works rarely investigate the effects of a different number of classes (i.e., $N$-way) and…

机器学习 · 计算机科学 2021-10-19 Hongru Wang , Zhijing Jin , Jiarun Cao , Gabriel Pui Cheong Fung , Kam-Fai Wong

Entity recognition is a fundamental task in understanding document images. Traditional sequence labeling frameworks treat the entity types as class IDs and rely on extensive data and high-quality annotations to learn semantics which are…

计算与语言 · 计算机科学 2022-04-13 Zilong Wang , Jingbo Shang

In this work, we study the problem of named entity recognition (NER) in a low resource scenario, focusing on few-shot and zero-shot settings. Built upon large-scale pre-trained language models, we propose a novel NER framework, namely…

计算与语言 · 计算机科学 2021-09-14 Yaqing Wang , Haoda Chu , Chao Zhang , Jing Gao

Aspect category detection (ACD) in sentiment analysis aims to identify the aspect categories mentioned in a sentence. In this paper, we formulate ACD in the few-shot learning scenario. However, existing few-shot learning approaches mainly…

计算与语言 · 计算机科学 2021-06-01 Mengting Hu , Shiwan Zhao , Honglei Guo , Chao Xue , Hang Gao , Tiegang Gao , Renhong Cheng , Zhong Su