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Learning from audio-visual data offers many possibilities to express correspondence between the audio and visual content, similar to the human perception that relates aural and visual information. In this work, we present a method for…

音频与语音处理 · 电气工程与系统科学 2022-11-23 Shanshan Wang , Archontis Politis , Annamaria Mesaros , Tuomas Virtanen

Given the abundance of unlabeled Satellite Image Time Series (SITS) and the scarcity of labeled data, contrastive self-supervised pretraining emerges as a natural tool to leverage this vast quantity of unlabeled data. However, designing…

计算机视觉与模式识别 · 计算机科学 2025-06-24 Antoine Saget , Baptiste Lafabregue , Antoine Cornuéjols , Pierre Gançarski

Conventional audio-visual methods for speaker verification rely on large amounts of labeled data and separate modality-specific architectures, which is computationally expensive, limiting their scalability. To address these problems, we…

计算机视觉与模式识别 · 计算机科学 2025-06-25 Gnana Praveen Rajasekhar , Jahangir Alam

Training Transformer-based models demands a large amount of data, while obtaining aligned and labelled data in multimodality is rather cost-demanding, especially for audio-visual speech recognition (AVSR). Thus it makes a lot of sense to…

声音 · 计算机科学 2022-03-29 Xichen Pan , Peiyu Chen , Yichen Gong , Helong Zhou , Xinbing Wang , Zhouhan Lin

This paper presents a framework for learning visual representations from unlabeled video demonstrations captured from multiple viewpoints. We show that these representations are applicable for imitating several robotic tasks, including pick…

计算机视觉与模式识别 · 计算机科学 2023-01-30 André Correia , Luís A. Alexandre

Content creators often use music to enhance their videos, from soundtracks in movies to background music in video blogs and social media content. However, identifying the best music for a video can be a difficult and time-consuming task. To…

多媒体 · 计算机科学 2024-12-24 Shanti Stewart , Gouthaman KV , Lie Lu , Andrea Fanelli

In recent years, the introduction of self-supervised contrastive learning (SSCL) has demonstrated remarkable improvements in representation learning across various domains, including natural language processing and computer vision. By…

机器学习 · 计算机科学 2023-08-15 Chiyu Zhang , Qi Yan , Lili Meng , Tristan Sylvain

With the advance in self-supervised learning for audio and visual modalities, it has become possible to learn a robust audio-visual speech representation. This would be beneficial for improving the audio-visual speech recognition (AVSR)…

图像与视频处理 · 电气工程与系统科学 2022-07-12 Zi-Qiang Zhang , Jie Zhang , Jian-Shu Zhang , Ming-Hui Wu , Xin Fang , Li-Rong Dai

Self-supervised contrastive learning is a powerful tool to learn visual representation without labels. Prior work has primarily focused on evaluating the recognition accuracy of various pre-training algorithms, but has overlooked other…

计算机视觉与模式识别 · 计算机科学 2022-06-13 Yuanyi Zhong , Haoran Tang , Junkun Chen , Jian Peng , Yu-Xiong Wang

Self-supervised learning has gained popularity because of its ability to avoid the cost of annotating large-scale datasets. It is capable of adopting self-defined pseudo labels as supervision and use the learned representations for several…

计算机视觉与模式识别 · 计算机科学 2021-02-09 Ashish Jaiswal , Ashwin Ramesh Babu , Mohammad Zaki Zadeh , Debapriya Banerjee , Fillia Makedon

Self-supervised learning attempts to learn representations from un-labeled data; it does so via a loss function that encourages the embedding of a point to be close to that of its augmentations. This simple idea performs remarkably well,…

机器学习 · 计算机科学 2026-01-30 Parikshit Bansal , Ali Kavis , Sujay Sanghavi

Recent advances in deep learning have achieved promising performance for medical image analysis, while in most cases ground-truth annotations from human experts are necessary to train the deep model. In practice, such annotations are…

计算机视觉与模式识别 · 计算机科学 2020-03-03 Jianbo Jiao , Richard Droste , Lior Drukker , Aris T. Papageorghiou , J. Alison Noble

Self-supervised pretraining has been shown to yield powerful representations for transfer learning. These performance gains come at a large computational cost however, with state-of-the-art methods requiring an order of magnitude more…

计算机视觉与模式识别 · 计算机科学 2021-08-06 Olivier J. Hénaff , Skanda Koppula , Jean-Baptiste Alayrac , Aaron van den Oord , Oriol Vinyals , João Carreira

In this study, we present a simple multi-channel framework for contrastive learning (MC-SimCLR) to encode 'what' and 'where' of spatial audios. MC-SimCLR learns joint spectral and spatial representations from unlabeled spatial audios,…

音频与语音处理 · 电气工程与系统科学 2023-09-29 Xilin Jiang , Cong Han , Yinghao Aaron Li , Nima Mesgarani

In the context of mobile sensing environments, various sensors on mobile devices continually generate a vast amount of data. Analyzing this ever-increasing data presents several challenges, including limited access to annotated data and a…

机器学习 · 计算机科学 2023-05-02 Jason Liu , Shohreh Deldari , Hao Xue , Van Nguyen , Flora D. Salim

Contrastive learning has revolutionized self-supervised image representation learning field, and recently been adapted to video domain. One of the greatest advantages of contrastive learning is that it allows us to flexibly define powerful…

计算机视觉与模式识别 · 计算机科学 2021-08-06 Haofei Kuang , Yi Zhu , Zhi Zhang , Xinyu Li , Joseph Tighe , Sören Schwertfeger , Cyrill Stachniss , Mu Li

Convolutional networks have marked their place over the last few years as the best performing model for various visual tasks. They are, however, most suited for supervised learning from large amounts of labeled data. Previous attempts have…

机器学习 · 计算机科学 2018-12-05 Elad Hoffer , Itay Hubara , Nir Ailon

The Vision Transformer architecture has shown to be competitive in the computer vision (CV) space where it has dethroned convolution-based networks in several benchmarks. Nevertheless, convolutional neural networks (CNN) remain the…

机器学习 · 计算机科学 2023-07-20 Manuel Goulão , Arlindo L. Oliveira

Supervised learning methods have been found to exhibit inductive biases favoring simpler features. When such features are spuriously correlated with the label, this can result in suboptimal performance on minority subgroups. Despite the…

计算机视觉与模式识别 · 计算机科学 2024-06-28 Kimia Hamidieh , Haoran Zhang , Swami Sankaranarayanan , Marzyeh Ghassemi

Contrastive learning has delivered impressive results for various tasks in the self-supervised regime. However, existing approaches optimize for learning representations specific to downstream scenarios, i.e., \textit{global}…

机器学习 · 计算机科学 2021-10-29 Shuang Ma , Zhaoyang Zeng , Daniel McDuff , Yale Song