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We present a contrasting learning approach with data augmentation techniques to learn document representations in an unsupervised manner. Inspired by recent contrastive self-supervised learning algorithms used for image and NLP pretraining,…

In computer vision, contrastive learning is the most advanced unsupervised learning framework. Yet most previous methods simply apply fixed composition of data augmentations to improve data efficiency, which ignores the changes in their…

计算机视觉与模式识别 · 计算机科学 2023-04-20 Yuhan Zhang , He Zhu , Shan Yu

In various imaging problems, we only have access to compressed measurements of the underlying signals, hindering most learning-based strategies which usually require pairs of signals and associated measurements for training. Learning only…

计算机视觉与模式识别 · 计算机科学 2021-08-25 Dongdong Chen , Julián Tachella , Mike E. Davies

Self-supervision has emerged as a propitious method for visual representation learning after the recent paradigm shift from handcrafted pretext tasks to instance-similarity based approaches. Most state-of-the-art methods enforce similarity…

计算机视觉与模式识别 · 计算机科学 2022-10-19 Sravanti Addepalli , Kaushal Bhogale , Priyam Dey , R. Venkatesh Babu

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

Recent advancements in Audio-Video Large Language Models (AV-LLMs) have enhanced their capabilities in tasks like audio-visual question answering and multimodal dialog systems. Video and audio introduce an extended temporal dimension,…

多媒体 · 计算机科学 2025-11-17 Zhonghua Jiang , Kui Chen , Kunxi Li , Keting Yin , Yiyun Zhou , Zhaode Wang , Chengfei Lv , Shengyu Zhang

This paper proposes a single-stage training approach that semantically aligns three modalities - audio, visual, and text using a contrastive learning framework. Contrastive training has gained prominence for multimodal alignment, utilizing…

声音 · 计算机科学 2025-05-21 Parthasaarathy Sudarsanam , Irene Martín-Morató , Tuomas Virtanen

Contrastive learning has been shown to produce generalizable representations of audio and visual data by maximizing the lower bound on the mutual information (MI) between different views of an instance. However, obtaining a tight lower…

机器学习 · 计算机科学 2021-04-20 Shuang Ma , Zhaoyang Zeng , Daniel McDuff , Yale Song

Self supervised representation learning has recently attracted a lot of research interest for both the audio and visual modalities. However, most works typically focus on a particular modality or feature alone and there has been very…

音频与语音处理 · 电气工程与系统科学 2020-02-21 Abhinav Shukla , Konstantinos Vougioukas , Pingchuan Ma , Stavros Petridis , Maja Pantic

Many of the existing methods for learning joint embedding of images and text use only supervised information from paired images and its textual attributes. Taking advantage of the recent success of unsupervised learning in deep neural…

计算机视觉与模式识别 · 计算机科学 2017-03-21 Yao-Hung Hubert Tsai , Liang-Kang Huang , Ruslan Salakhutdinov

Self-supervised representation learning is an emerging research topic for its powerful capacity in learning with unlabeled data. As a mainstream self-supervised learning method, augmentation-based contrastive learning has achieved great…

计算机视觉与模式识别 · 计算机科学 2020-10-21 Yanlun Tu , Jianxing Feng , Yang Yang

Popular representation learning methods encourage feature invariance under transformations applied at the input. However, in 3D perception tasks like object localization and segmentation, outputs are naturally equivariant to some…

计算机视觉与模式识别 · 计算机科学 2024-04-19 Deepti Hegde , Suhas Lohit , Kuan-Chuan Peng , Michael J. Jones , Vishal M. Patel

Recently, researchers have gradually realized that in some cases, the self-supervised pre-training on large-scale Internet data is better than that of high-quality/manually labeled data sets, and multimodal/large models are better than…

声音 · 计算机科学 2023-08-08 Sen Fang , Yangjian Wu , Bowen Gao , Jingwen Cai , Teik Toe Teoh

Recent unsupervised representation learning methods have shown to be effective in a range of vision tasks by learning representations invariant to data augmentations such as random cropping and color jittering. However, such invariance…

机器学习 · 计算机科学 2021-11-19 Hankook Lee , Kibok Lee , Kimin Lee , Honglak Lee , Jinwoo Shin

Improving generalization is a major challenge in audio classification due to labeled data scarcity. Self-supervised learning (SSL) methods tackle this by leveraging unlabeled data to learn useful features for downstream classification…

音频与语音处理 · 电气工程与系统科学 2021-12-22 Melikasadat Emami , Dung Tran , Kazuhito Koishida

Contrastive video-language pretraining has demonstrated great success in learning rich and robust video representations. However, deploying such video encoders on compute-constrained edge devices remains challenging due to their high…

计算机视觉与模式识别 · 计算机科学 2025-04-18 Chaitanya Patel , Juan Carlos Niebles , Ehsan Adeli

We present RAVEn, a self-supervised multi-modal approach to jointly learn visual and auditory speech representations. Our pre-training objective involves encoding masked inputs, and then predicting contextualised targets generated by…

机器学习 · 计算机科学 2023-04-06 Alexandros Haliassos , Pingchuan Ma , Rodrigo Mira , Stavros Petridis , Maja Pantic

There has been a long-standing quest for a unified audio-visual-text model to enable various multimodal understanding tasks, which mimics the listening, seeing and reading process of human beings. Humans tends to represent knowledge using…

音频与语音处理 · 电气工程与系统科学 2024-02-22 Xianghu Yue , Xiaohai Tian , Lu Lu , Malu Zhang , Zhizheng Wu , Haizhou Li

In recent years, advancements in representation learning and language models have propelled Automated Captioning (AC) to new heights, enabling the generation of human-level descriptions. Leveraging these advancements, we propose AVCap, an…

音频与语音处理 · 电气工程与系统科学 2024-07-12 Jongsuk Kim , Jiwon Shin , Junmo Kim

A data augmentation module is utilized in contrastive learning to transform the given data example into two views, which is considered essential and irreplaceable. However, the predetermined composition of multiple data augmentations brings…

计算机视觉与模式识别 · 计算机科学 2022-08-23 Junbo Zhang , Kaisheng Ma