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Few-shot learning is an important research field of machine learning in which a classifier must be trained in such a way that it can adapt to new classes which are not included in the training set. However, only small amounts of examples of…

Machine Learning · Computer Science 2020-06-11 Andrei Boiarov , Oleg Granichin , Olga Granichina

In this paper, we propose a deep invertible hybrid model which integrates discriminative and generative learning at a latent space level for semi-supervised few-shot classification. Various tasks for classifying new species from image data…

Computer Vision and Pattern Recognition · Computer Science 2021-05-25 Yusuke Ohtsubo , Tetsu Matsukawa , Einoshin Suzuki

Few-shot classification consists of learning a predictive model that is able to effectively adapt to a new class, given only a few annotated samples. To solve this challenging problem, meta-learning has become a popular paradigm that…

Computer Vision and Pattern Recognition · Computer Science 2019-09-02 Nikita Dvornik , Cordelia Schmid , Julien Mairal

It is often the case that data are with multiple views in real-world applications. Fully exploring the information of each view is significant for making data more representative. However, due to various limitations and failures in data…

Computer Vision and Pattern Recognition · Computer Science 2023-05-19 Yuan Zhou , Yanrong Guo , Shijie Hao , Richang Hong , Jiebo Luo

Sophisticated automatic incident detection (AID) technology plays a key role in contemporary transportation systems. Though many papers were devoted to study incident classification algorithms, few study investigated how to enhance feature…

Machine Learning · Computer Science 2016-11-18 Jimmy SJ. Ren , Wei Wang , Jiawei Wang , Stephen Liao

Few-shot Named Entity Recognition (NER) aims to extract named entities using only a limited number of labeled examples. Existing contrastive learning methods often suffer from insufficient distinguishability in context vector representation…

Computation and Language · Computer Science 2024-05-09 Haojie Zhang , Yimeng Zhuang

In real-world action recognition systems, incorporating more attributes helps achieve a more comprehensive understanding of human behavior. However, using a single model to simultaneously recognize multiple attributes can lead to a decrease…

Computer Vision and Pattern Recognition · Computer Science 2025-02-19 Juefeng Xiao , Tianqi Xiang , Zhigang Tu

This paper tackles the problem of few-shot learning, which aims to learn new visual concepts from a few examples. A common problem setting in few-shot classification assumes random sampling strategy in acquiring data labels, which is…

Computer Vision and Pattern Recognition · Computer Science 2022-01-10 Shipeng Yan , Songyang Zhang , Xuming He

Few-shot classification aims at classifying categories of a novel task by learning from just a few (typically, 1 to 5) labelled examples. An effective approach to few-shot classification involves a prior model trained on a large-sample base…

Computer Vision and Pattern Recognition · Computer Science 2021-09-22 Rajshekhar Das , Yu-Xiong Wang , JoséM. F. Moura

We propose a novel hybrid loss for multiclass and structured prediction problems that is a convex combination of log loss for Conditional Random Fields (CRFs) and a multiclass hinge loss for Support Vector Machines (SVMs). We provide a…

Machine Learning · Computer Science 2010-09-20 Qinfeng Shi , Mark D. Reid , Tiberio Caetano

In this paper, we explore how to utilize pre-trained language model to perform few-shot text classification where only a few annotated examples are given for each class. Since using traditional cross-entropy loss to fine-tune language model…

Computation and Language · Computer Science 2022-10-03 Liwen Sun , Jiawei Han

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…

Information Retrieval · Computer Science 2023-10-17 Zihan Wang , Ziqi Zhao , Zhumin Chen , Pengjie Ren , Maarten de Rijke , Zhaochun Ren

Traditional continual event detection relies on abundant labeled data for training, which is often impractical to obtain in real-world applications. In this paper, we introduce continual few-shot event detection (CFED), a more commonly…

Computation and Language · Computer Science 2024-03-27 Chenlong Zhang , Pengfei Cao , Yubo Chen , Kang Liu , Zhiqiang Zhang , Mengshu Sun , Jun Zhao

Anomaly detection, the task of identifying unusual samples in data, often relies on a large set of training samples. In this work, we consider the setting of few-shot anomaly detection in images, where only a few images are given at…

Computer Vision and Pattern Recognition · Computer Science 2021-04-30 Shelly Sheynin , Sagie Benaim , Lior Wolf

Recognizing objects from sparse and noisy events becomes extremely difficult when paired images and category labels do not exist. In this paper, we study label-free event-based object recognition where category labels and paired images are…

Computer Vision and Pattern Recognition · Computer Science 2023-08-21 Hoonhee Cho , Hyeonseong Kim , Yujeong Chae , Kuk-Jin Yoon

Few-shot action recognition aims at quickly adapting a pre-trained model to the novel data with a distribution shift using only a limited number of samples. Key challenges include how to identify and leverage the transferable knowledge…

Computer Vision and Pattern Recognition · Computer Science 2024-06-06 Yuke Li , Guangyi Chen , Ben Abramowitz , Stefano Anzellott , Donglai Wei

Few-shot learning has been extensively explored to address problems where the amount of labeled samples is very limited for some classes. In the semi-supervised few-shot learning setting, substantial quantities of unlabeled samples are…

Computer Vision and Pattern Recognition · Computer Science 2025-12-16 Souvik Maji , Rhythm Baghel , Pratik Mazumder

Conventional methods for object detection usually require substantial amounts of training data and annotated bounding boxes. If there are only a few training data and annotations, the object detectors easily overfit and fail to generalize.…

Computer Vision and Pattern Recognition · Computer Science 2020-08-31 Geonuk Kim , Hong-Gyu Jung , Seong-Whan Lee

Event identification is increasingly recognized as crucial for enhancing the reliability, security, and stability of the electric power system. With the growing deployment of Phasor Measurement Units (PMUs) and advancements in data science,…

Machine Learning · Computer Science 2024-07-24 Nima Taghipourbazargani , Lalitha Sankar , Oliver Kosut

Despite the recent advances in video classification, progress in spatio-temporal action recognition has lagged behind. A major contributing factor has been the prohibitive cost of annotating videos frame-by-frame. In this paper, we present…

Computer Vision and Pattern Recognition · Computer Science 2020-07-22 Anurag Arnab , Chen Sun , Arsha Nagrani , Cordelia Schmid