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Despite impressive progress in deep learning, generalizing far beyond the training distribution is an important open challenge. In this work, we consider few-shot classification, and aim to shed light on what makes some novel classes easier…

Machine Learning · Computer Science 2022-05-31 Mengye Ren , Eleni Triantafillou , Kuan-Chieh Wang , James Lucas , Jake Snell , Xaq Pitkow , Andreas S. Tolias , Richard Zemel

Despite its astounding success in learning deeper multi-dimensional data, the performance of deep learning declines on new unseen tasks mainly due to its focus on same-distribution prediction. Moreover, deep learning is notorious for poor…

Machine Learning · Computer Science 2023-03-15 Hassan Gharoun , Fereshteh Momenifar , Fang Chen , Amir H. Gandomi

Viewpoint estimation for known categories of objects has been improved significantly thanks to deep networks and large datasets, but generalization to unknown categories is still very challenging. With an aim towards improving performance…

Computer Vision and Pattern Recognition · Computer Science 2019-08-02 Hung-Yu Tseng , Shalini De Mello , Jonathan Tremblay , Sifei Liu , Stan Birchfield , Ming-Hsuan Yang , Jan Kautz

Few-shot learning aims to recognize novel classes with few examples. Pre-training based methods effectively tackle the problem by pre-training a feature extractor and then fine-tuning it through the nearest centroid based meta-learning.…

Computer Vision and Pattern Recognition · Computer Science 2021-08-21 Baoquan Zhang , Xutao Li , Yunming Ye , Shanshan Feng

Recent progress on few-shot learning largely relies on annotated data for meta-learning: base classes sampled from the same domain as the novel classes. However, in many applications, collecting data for meta-learning is infeasible or…

Computer Vision and Pattern Recognition · Computer Science 2020-07-21 Yunhui Guo , Noel C. Codella , Leonid Karlinsky , James V. Codella , John R. Smith , Kate Saenko , Tajana Rosing , Rogerio Feris

We consider the few-shot classification task with an unbalanced dataset, in which some classes have sufficient training samples while other classes only have limited training samples. Recent works have proposed to solve this task by…

Computer Vision and Pattern Recognition · Computer Science 2020-08-25 Vivek Roy , Yan Xu , Yu-Xiong Wang , Kris Kitani , Ruslan Salakhutdinov , Martial Hebert

Current state-of-the-art few-shot learners focus on developing effective training procedures for feature representations, before using simple, e.g. nearest centroid, classifiers. In this paper, we take an orthogonal approach that is…

Machine Learning · Computer Science 2021-08-30 Xueting Zhang , Debin Meng , Henry Gouk , Timothy Hospedales

Annotated images and ground truth for the diagnosis of rare and novel diseases are scarce. This is expected to prevail, considering the small number of affected patient population and limited clinical expertise to annotate images. Further,…

Computer Vision and Pattern Recognition · Computer Science 2022-11-01 Karthik Desingu , Mirunalini P. , Aravindan Chandrabose

One-shot image classification aims to train image classifiers over the dataset with only one image per category. It is challenging for modern deep neural networks that typically require hundreds or thousands of images per class. In this…

Computer Vision and Pattern Recognition · Computer Science 2020-05-05 Wanqi Xue , Wei Wang

Deep autoregressive models have shown state-of-the-art performance in density estimation for natural images on large-scale datasets such as ImageNet. However, such models require many thousands of gradient-based weight updates and unique…

Neural and Evolutionary Computing · Computer Science 2018-03-01 Scott Reed , Yutian Chen , Thomas Paine , Aäron van den Oord , S. M. Ali Eslami , Danilo Rezende , Oriol Vinyals , Nando de Freitas

Graph classification aims to extract accurate information from graph-structured data for classification and is becoming more and more important in graph learning community. Although Graph Neural Networks (GNNs) have been successfully…

Machine Learning · Computer Science 2020-06-24 Ning Ma , Jiajun Bu , Jieyu Yang , Zhen Zhang , Chengwei Yao , Zhi Yu , Sheng Zhou , Xifeng Yan

Learning high quality class representations from few examples is a key problem in metric-learning approaches to few-shot learning. To accomplish this, we introduce a novel architecture where class representations are conditioned for each…

Machine Learning · Computer Science 2018-02-14 Nathan Hilliard , Lawrence Phillips , Scott Howland , Artëm Yankov , Courtney D. Corley , Nathan O. Hodas

Image modality recognition is essential for efficient imaging workflows in current clinical environments, where multiple imaging modalities are used to better comprehend complex diseases. Emerging biomarkers from novel, rare modalities are…

Computer Vision and Pattern Recognition · Computer Science 2019-08-28 Santi Puch , Irina Sánchez , Matt Rowe

Few-shot meta-learning methods consider the problem of learning new tasks from a small, fixed number of examples, by meta-learning across static data from a set of previous tasks. However, in many real world settings, it is more natural to…

Machine Learning · Computer Science 2020-12-15 Tianhe Yu , Xinyang Geng , Chelsea Finn , Sergey Levine

With the continuous development of natural language processing (NLP) technology, text classification tasks have been widely used in multiple application fields. However, obtaining labeled data is often expensive and difficult, especially in…

Computation and Language · Computer Science 2025-02-14 Jia Gao , Shuangquan Lyu , Guiran Liu , Binrong Zhu , Hongye Zheng , Xiaoxuan Liao

In this paper, we explore meta-learning for few-shot text classification. Meta-learning has shown strong performance in computer vision, where low-level patterns are transferable across learning tasks. However, directly applying this…

Computation and Language · Computer Science 2020-02-19 Yujia Bao , Menghua Wu , Shiyu Chang , Regina Barzilay

The high cost of acquiring and annotating samples has made the `few-shot' learning problem of prime importance. Existing works mainly focus on improving performance on clean data and overlook robustness concerns on the data perturbed with…

Computer Vision and Pattern Recognition · Computer Science 2022-11-04 Gaurav Kumar Nayak , Ruchit Rawal , Inder Khatri , Anirban Chakraborty

Few-shot learning aims to recognize novel queries with limited support samples by learning from base knowledge. Recent progress in this setting assumes that the base knowledge and novel query samples are distributed in the same domains,…

Computer Vision and Pattern Recognition · Computer Science 2023-06-21 Yifan Zhao , Tong Zhang , Jia Li , Yonghong Tian

Pedestrian attribute recognition has received increasing attention due to its important role in video surveillance applications. However, most existing methods are designed for a fixed set of attributes. They are unable to handle the…

Computer Vision and Pattern Recognition · Computer Science 2019-06-25 Liuyu Xiang , Xiaoming Jin , Guiguang Ding , Jungong Han , Leida Li

Few-shot object detection has been extensively investigated by incorporating meta-learning into region-based detection frameworks. Despite its success, the said paradigm is constrained by several factors, such as (i) low-quality region…

Computer Vision and Pattern Recognition · Computer Science 2021-09-21 Gongjie Zhang , Zhipeng Luo , Kaiwen Cui , Shijian Lu