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This article reviews meta-learning also known as learning-to-learn which seeks rapid and accurate model adaptation to unseen tasks with applications in highly automated AI, few-shot learning, natural language processing and robotics. Unlike…

Machine Learning · Computer Science 2020-10-27 Huimin Peng

In this work, we introduce long-video masked-embedding autoencoders (LV-MAE), a self-supervised learning framework for long video representation. Our approach treats short- and long-span dependencies as two separate tasks. Such decoupling…

Computer Vision and Pattern Recognition · Computer Science 2025-10-08 Ilan Naiman , Emanuel Ben-Baruch , Oron Anschel , Alon Shoshan , Igor Kviatkovsky , Manoj Aggarwal , Gerard Medioni

The scarcity of annotated data in LiDAR point cloud understanding hinders effective representation learning. Consequently, scholars have been actively investigating efficacious self-supervised pre-training paradigms. Nevertheless, temporal…

Computer Vision and Pattern Recognition · Computer Science 2024-07-23 Weijie Wei , Fatemeh Karimi Nejadasl , Theo Gevers , Martin R. Oswald

This paper proposes a novel pretext task to address the self-supervised video representation learning problem. Specifically, given an unlabeled video clip, we compute a series of spatio-temporal statistical summaries, such as the spatial…

Computer Vision and Pattern Recognition · Computer Science 2021-02-01 Jiangliu Wang , Jianbo Jiao , Linchao Bao , Shengfeng He , Wei Liu , Yun-hui Liu

In this paper, we address self-supervised representation learning from human skeletons for action recognition. Previous methods, which usually learn feature presentations from a single reconstruction task, may come across the overfitting…

Computer Vision and Pattern Recognition · Computer Science 2020-10-15 Lilang Lin , Sijie Song , Wenhan Yan , Jiaying Liu

In this report we review memory-based meta-learning as a tool for building sample-efficient strategies that learn from past experience to adapt to any task within a target class. Our goal is to equip the reader with the conceptual…

Self-supervised learning has demonstrated remarkable capability in representation learning for skeleton-based action recognition. Existing methods mainly focus on applying global data augmentation to generate different views of the skeleton…

Computer Vision and Pattern Recognition · Computer Science 2023-10-13 Yujie Zhou , Haodong Duan , Anyi Rao , Bing Su , Jiaqi Wang

Self-attention has been successfully applied to video representation learning due to the effectiveness of modeling long range dependencies. Existing approaches build the dependencies merely by computing the pairwise correlations along…

Computer Vision and Pattern Recognition · Computer Science 2021-05-28 Xudong Guo , Xun Guo , Yan Lu

The volume of unlabelled Earth observation (EO) data is huge, but many important applications lack labelled training data. However, EO data offers the unique opportunity to pair data from different modalities and sensors automatically based…

Computer Vision and Pattern Recognition · Computer Science 2024-07-30 Vishal Nedungadi , Ankit Kariryaa , Stefan Oehmcke , Serge Belongie , Christian Igel , Nico Lang

Medical imaging tasks are very challenging due to the lack of publicly available labeled datasets. Hence, it is difficult to achieve high performance with existing deep-learning models as they require a massive labeled dataset to be trained…

Image and Video Processing · Electrical Eng. & Systems 2024-07-23 Anubhav Gupta , Islam Osman , Mohamed S. Shehata , John W. Braun

Emotion recognition models using audio input data can enable the development of interactive systems with applications in mental healthcare, marketing, gaming, and social media analysis. While the field of affective computing using audio…

Sound · Computer Science 2023-07-25 Peranut Nimitsurachat , Peter Washington

Self-supervised, multi-modal learning has been successful in holistic representation of complex scenarios. This can be useful to consolidate information from multiple modalities which have multiple, versatile uses. Its application in…

Computer Vision and Pattern Recognition · Computer Science 2020-11-03 Aniruddha Tamhane , Jie Ying Wu , Mathias Unberath

Agents that can follow language instructions are expected to be useful in a variety of situations such as navigation. However, training neural network-based agents requires numerous paired trajectories and languages. This paper proposes…

Machine Learning · Computer Science 2023-01-03 Kei Akuzawa , Yusuke Iwasawa , Yutaka Matsuo

We propose a self-supervised method for learning representations based on spatial audio-visual correspondences in egocentric videos. Our method uses a masked auto-encoding framework to synthesize masked binaural (multi-channel) audio…

Computer Vision and Pattern Recognition · Computer Science 2024-05-07 Sagnik Majumder , Ziad Al-Halah , Kristen Grauman

Autoencoder-based learning has emerged as a staple for disciplining representations in unsupervised and semi-supervised settings. This paper analyzes a framework for improving generalization in a purely supervised setting, where the target…

Machine Learning · Statistics 2020-01-24 Daniel Jarrett , Mihaela van der Schaar

Continual learning aims to provide intelligent agents capable of learning multiple tasks sequentially with neural networks. One of its main challenging, catastrophic forgetting, is caused by the neural networks non-optimal ability to learn…

Machine Learning · Computer Science 2021-01-29 Ghada Sokar , Decebal Constantin Mocanu , Mykola Pechenizkiy

Masked Autoencoders (MAE) have shown promising performance in self-supervised learning for both 2D and 3D computer vision. However, existing MAE-style methods can only learn from the data of a single modality, i.e., either images or point…

Computer Vision and Pattern Recognition · Computer Science 2023-09-26 Ziyu Guo , Renrui Zhang , Longtian Qiu , Xianzhi Li , Pheng-Ann Heng

Self-supervised learning has been successfully applied to pre-train video representations, which aims at efficient adaptation from pre-training domain to downstream tasks. Existing approaches merely leverage contrastive loss to learn…

Computer Vision and Pattern Recognition · Computer Science 2021-08-24 Yuanze Lin , Xun Guo , Yan Lu

Recently, significant progress has been made in masked image modeling to catch up to masked language modeling. However, unlike words in NLP, the lack of semantic decomposition of images still makes masked autoencoding (MAE) different…

Computer Vision and Pattern Recognition · Computer Science 2022-10-06 Gang Li , Heliang Zheng , Daqing Liu , Chaoyue Wang , Bing Su , Changwen Zheng

Strong gravitational lensing can reveal the influence of dark-matter substructure in galaxies, but analyzing these effects from noisy, low-resolution images poses a significant challenge. In this work, we propose a masked autoencoder (MAE)…

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