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Self-supervised learning converts raw perceptual data such as images to a compact space where simple Euclidean distances measure meaningful variations in data. In this paper, we extend this formulation by adding additional geometric…

Machine Learning · Computer Science 2023-06-27 Sharut Gupta , Joshua Robinson , Derek Lim , Soledad Villar , Stefanie Jegelka

The performance of deep learning models depends significantly on their capacity to encode input features efficiently and decode them into meaningful outputs. Better input and output representation has the potential to boost models'…

Audio and Speech Processing · Electrical Eng. & Systems 2024-09-10 Ahmed Adel Attia , Yashish M. Siriwardena , Carol Espy-Wilson

Existing audio analysis methods generally first transform the audio stream to spectrogram, and then feed it into CNN for further analysis. A standard CNN recognizes specific visual patterns over feature map, then pools for high-level…

Sound · Computer Science 2023-03-16 Yulin Pan , Xiangteng He , Biao Gong , Yuxin Peng , Yiliang Lv

Melody preservation is crucial in singing voice conversion (SVC). However, in many scenarios, audio is often accompanied with background music (BGM), which can cause audio distortion and interfere with the extraction of melody and other key…

Sound · Computer Science 2025-02-10 Wei Chen , Binzhu Sha , Jing Yang , Zhuo Wang , Fan Fan , Zhiyong Wu

In this work, we observe that many existing self-supervised learning algorithms can be both unified and generalized when seen through the lens of equivariant representations. Specifically, we introduce a general framework we call…

Machine Learning · Computer Science 2022-11-16 T. Anderson Keller , Xavier Suau , Luca Zappella

Video-language pre-training is a typical and challenging problem that aims at learning visual and textual representations from large-scale data in a self-supervised way. Existing pre-training approaches either captured the correspondence of…

Computer Vision and Pattern Recognition · Computer Science 2024-05-14 Shentong Mo , Haofan Wang , Huaxia Li , Xu Tang

Understanding how images of objects and scenes behave in response to specific ego-motions is a crucial aspect of proper visual development, yet existing visual learning methods are conspicuously disconnected from the physical source of…

Computer Vision and Pattern Recognition · Computer Science 2016-03-30 Dinesh Jayaraman , Kristen Grauman

Audio and video are two most common modalities in the mainstream media platforms, e.g., YouTube. To learn from multimodal videos effectively, in this work, we propose a novel audio-video recognition approach termed audio video Transformer,…

Computer Vision and Pattern Recognition · Computer Science 2024-01-10 Wentao Zhu

Autonomous soundscape augmentation systems typically use trained models to pick optimal maskers to effect a desired perceptual change. While acoustic information is paramount to such systems, contextual information, including participant…

Sound · Computer Science 2024-07-03 Kenneth Ooi , Karn N. Watcharasupat , Bhan Lam , Zhen-Ting Ong , Woon-Seng Gan

Purpose: Surgical scene understanding is key to advancing computer-aided and intelligent surgical systems. Current approaches predominantly rely on visual data or end-to-end learning, which limits fine-grained contextual modeling. This work…

We propose a visual-linguistic representation learning approach within a self-supervised learning framework by introducing a new operation, loss, and data augmentation strategy. First, we generate diverse features for the image-text…

Computer Vision and Pattern Recognition · Computer Science 2023-04-04 Jaeyoo Park , Bohyung Han

Unsupervised learning methods based on contrastive learning have drawn increasing attention and achieved promising results. Most of them aim to learn representations invariant to instance-level variations, which are provided by different…

Computer Vision and Pattern Recognition · Computer Science 2020-11-04 Feng Wang , Huaping Liu , Di Guo , Fuchun Sun

Bootstrap-based Self-Supervised Learning (SSL) has achieved remarkable progress in audio understanding. However, existing methods typically operate at a single level of granularity, limiting their ability to model the diverse temporal and…

Audio and Speech Processing · Electrical Eng. & Systems 2026-01-30 Bing Han , Chushu Zhou , Yifan Yang , Wei Wang , Chenda Li , Wangyou Zhang , Yanmin Qian

In recent years, discriminative self-supervised methods have made significant strides in advancing various visual tasks. The central idea of learning a data encoder that is robust to data distortions/augmentations is straightforward yet…

Computer Vision and Pattern Recognition · Computer Science 2023-08-17 Yuewei Yang , Hai Li , Yiran Chen

Contrastive self-supervised learning has gained attention for its ability to create high-quality representations from large unlabelled data sets. A key reason that these powerful features enable data-efficient learning of downstream tasks…

Machine Learning · Computer Science 2024-01-29 Calum Heggan , Tim Hospedales , Sam Budgett , Mehrdad Yaghoobi

In this paper, we work on a sound recognition system that continually incorporates new sound classes. Our main goal is to develop a framework where the model can be updated without relying on labeled data. For this purpose, we propose…

Audio and Speech Processing · Electrical Eng. & Systems 2023-01-11 Zhepei Wang , Cem Subakan , Xilin Jiang , Junkai Wu , Efthymios Tzinis , Mirco Ravanelli , Paris Smaragdis

Representation learning approaches typically rely on images of objects captured from a single perspective that are transformed using affine transformations. Additionally, self-supervised learning, a successful paradigm of representation…

Computer Vision and Pattern Recognition · Computer Science 2022-08-17 Omiros Pantazis , Mathew Salvaris

Self-supervised learning of convolutional neural networks can harness large amounts of cheap unlabeled data to train powerful feature representations. As surrogate task, we jointly address ordering of visual data in the spatial and temporal…

Computer Vision and Pattern Recognition · Computer Science 2018-07-31 Uta Büchler , Biagio Brattoli , Björn Ommer

There is a natural correlation between the visual and auditive elements of a video. In this work we leverage this connection to learn general and effective models for both audio and video analysis from self-supervised temporal…

Computer Vision and Pattern Recognition · Computer Science 2018-11-13 Bruno Korbar , Du Tran , Lorenzo Torresani

We propose SelfVC, a training strategy to iteratively improve a voice conversion model with self-synthesized examples. Previous efforts on voice conversion focus on factorizing speech into explicitly disentangled representations that…