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Many existing approaches for 3D point cloud semantic segmentation are fully supervised. These fully supervised approaches heavily rely on large amounts of labeled training data that are difficult to obtain and cannot segment new classes…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Na Zhao , Tat-Seng Chua , Gim Hee Lee

We propose to study the problem of few-shot learning with the prism of inference on a partially observed graphical model, constructed from a collection of input images whose label can be either observed or not. By assimilating generic…

Machine Learning · Statistics 2018-02-21 Victor Garcia , Joan Bruna

Few-shot learning aims to learn a new concept when only a few training examples are available, which has been extensively explored in recent years. However, most of the current works heavily rely on a large-scale labeled auxiliary set to…

Computer Vision and Pattern Recognition · Computer Science 2020-09-18 Tiexin Qin , Wenbin Li , Yinghuan Shi , Yang Gao

Few-shot learning and self-supervised learning address different facets of the same problem: how to train a model with little or no labeled data. Few-shot learning aims for optimization methods and models that can learn efficiently to…

Computer Vision and Pattern Recognition · Computer Science 2019-06-13 Spyros Gidaris , Andrei Bursuc , Nikos Komodakis , Patrick Pérez , Matthieu Cord

Humans have a unique ability to learn new representations from just a handful of examples with little to no supervision. Deep learning models, however, require an abundance of data and supervision to perform at a satisfactory level.…

Computer Vision and Pattern Recognition · Computer Science 2022-10-13 Ojas Kishorkumar Shirekar , Anuj Singh , Hadi Jamali-Rad

Few-shot learning (FSL), purposing to resolve the problem of data-scarce, has attracted considerable attention in recent years. A popular FSL framework contains two phases: (i) the pre-train phase employs the base data to train a CNN-based…

Computer Vision and Pattern Recognition · Computer Science 2024-03-20 Rui Xu , Lei Xing , Shuai Shao , Lifei Zhao , Baodi Liu , Weifeng Liu , Yicong Zhou

Graphs are widely used to model the relational structure of data, and the research of graph machine learning (ML) has a wide spectrum of applications ranging from drug design in molecular graphs to friendship recommendation in social…

Machine Learning · Computer Science 2022-08-23 Kaize Ding , Jianling Wang , Jundong Li , James Caverlee , Huan Liu

This paper presents a meta-learning framework for few-shots One-Class Classification (OCC) at test-time, a setting where labeled examples are only available for the positive class, and no supervision is given for the negative example. We…

To augment Large Language Models (LLMs) for multi-hop question answering, a mainstream solution within Graph Retrieval Augmented Generation (GraphRAG) leverages lightweight retrievers to efficiently extract information from a given…

Information Retrieval · Computer Science 2026-05-20 Shuai Li , Chen Huang , Duanyu Feng , Wenqiang Lei , See-Kiong Ng

Despite the remarkable success achieved by graph convolutional networks for functional brain activity analysis, the heterogeneity of functional patterns and the scarcity of imaging data still pose challenges in many tasks. Transferring…

Machine Learning · Computer Science 2022-12-19 Wenhui Cui , Haleh Akrami , Anand A. Joshi , Richard M. Leahy

Few-shot learning aims to handle previously unseen tasks using only a small amount of new training data. In preparing (or meta-training) a few-shot learner, however, massive labeled data are necessary. In the real world, unfortunately,…

Machine Learning · Computer Science 2020-03-19 Jun Seo , Sung Whan Yoon , Jaekyun Moon

Despite the success of Graph Neural Networks (GNNs) on various applications, GNNs encounter significant performance degradation when the amount of supervision signals, i.e., number of labeled nodes, is limited, which is expected as GNNs are…

Machine Learning · Computer Science 2022-04-29 Junseok Lee , Yunhak Oh , Yeonjun In , Namkyeong Lee , Dongmin Hyun , Chanyoung Park

Recently, research on Text-Attributed Graphs (TAGs) has gained significant attention due to the prevalence of free-text node features in real-world applications and the advancements in Large Language Models (LLMs) that bolster TAG…

Machine Learning · Computer Science 2025-02-25 Yun Zhu , Haizhou Shi , Xiaotang Wang , Yongchao Liu , Yaoke Wang , Boci Peng , Chuntao Hong , Siliang Tang

Few-shot Learning aims to learn and distinguish new categories with a very limited number of available images, presenting a significant challenge in the realm of deep learning. Recent researchers have sought to leverage the additional…

Computer Vision and Pattern Recognition · Computer Science 2024-03-26 Chunpeng Zhou , Haishuai Wang , Xilu Yuan , Zhi Yu , Jiajun Bu

Multitude of deep learning models have been proposed for node classification in graphs. However, they tend to perform poorly under labeled-data scarcity. Although Few-shot learning for graphs has been introduced to overcome this problem,…

Machine Learning · Computer Science 2026-02-02 Appan Rakaraddi , Lam Siew-Kei , Mahardhika Pratama , Marcus de Carvalho

In real-world scenarios, it may not always be possible to collect hundreds of labeled samples per class for training deep learning-based SAR Automatic Target Recognition (ATR) models. This work specifically tackles the few-shot SAR ATR…

Computer Vision and Pattern Recognition · Computer Science 2023-04-11 Nathan Inkawhich

Few-shot learning is an interesting and challenging study, which enables machines to learn from few samples like humans. Existing studies rarely exploit auxiliary information from large amount of unlabeled data. Self-supervised learning is…

Computer Vision and Pattern Recognition · Computer Science 2021-03-11 Hainan Li , Renshuai Tao , Jun Li , Haotong Qin , Yifu Ding , Shuo Wang , Xianglong Liu

Few-shot learning addresses the issue of classifying images using limited labeled data. Exploiting unlabeled data through the use of transductive inference methods such as label propagation has been shown to improve the performance of…

Computer Vision and Pattern Recognition · Computer Science 2023-11-01 Michalis Lazarou , Yannis Avrithis , Guangyu Ren , Tania Stathaki

Semi-supervised learning provides an effective paradigm for leveraging unlabeled data to improve a model's performance. Among the many strategies proposed, graph-based methods have shown excellent properties, in particular since they allow…

Machine Learning · Statistics 2021-03-29 Mourad El Hamri , Younès Bennani

We propose a few-shot learning method for unsupervised feature selection, which is a task to select a subset of relevant features in unlabeled data. Existing methods usually require many instances for feature selection. However, sufficient…

Machine Learning · Computer Science 2021-07-05 Atsutoshi Kumagai , Tomoharu Iwata , Yasuhiro Fujiwara