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To extract robust deep representations from long sequential modeling of speech data, we propose a self-supervised learning approach, namely Contrastive Separative Coding (CSC). Our key finding is to learn such representations by separating…

音频与语音处理 · 电气工程与系统科学 2021-03-02 Jun Wang , Max W. Y. Lam , Dan Su , Dong Yu

Self-supervised sentence representation learning is the task of constructing an embedding space for sentences without relying on human annotation efforts. One straightforward approach is to finetune a pretrained language model (PLM) with a…

We present a new self-supervised pre-training of Vision Transformers for dense prediction tasks. It is based on a contrastive loss across views that compares pixel-level representations to global image representations. This strategy…

计算机视觉与模式识别 · 计算机科学 2022-06-08 Jaonary Rabarisoa , Valentin Belissen , Florian Chabot , Quoc-Cuong Pham

We present a new self-supervised paradigm on point cloud sequence understanding. Inspired by the discriminative and generative self-supervised methods, we design two tasks, namely point cloud sequence based Contrastive Prediction and…

计算机视觉与模式识别 · 计算机科学 2023-05-23 Xiaoxiao Sheng , Zhiqiang Shen , Gang Xiao

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…

机器学习 · 计算机科学 2024-01-29 Calum Heggan , Tim Hospedales , Sam Budgett , Mehrdad Yaghoobi

The use of self-supervised pre-training has emerged as a promising approach to enhance the performance of many different visual tasks. In this context, recent approaches have employed the Masked Image Modeling paradigm, which pre-trains a…

计算机视觉与模式识别 · 计算机科学 2025-01-23 Lorenzo Baraldi , Roberto Amoroso , Marcella Cornia , Lorenzo Baraldi , Andrea Pilzer , Rita Cucchiara

We propose a unified point cloud video self-supervised learning framework for object-centric and scene-centric data. Previous methods commonly conduct representation learning at the clip or frame level and cannot well capture fine-grained…

计算机视觉与模式识别 · 计算机科学 2023-08-21 Xiaoxiao Sheng , Zhiqiang Shen , Gang Xiao , Longguang Wang , Yulan Guo , Hehe Fan

Limited availability of labeled physiological data often prohibits the use of powerful supervised deep learning models in the biomedical machine intelligence domain. We approach this problem and propose a novel encoding framework that…

Self-supervised learning is a machine learning approach that generates implicit labels by learning underlined patterns and extracting discriminative features from unlabeled data without manual labelling. Contrastive learning introduces the…

计算机视觉与模式识别 · 计算机科学 2025-10-13 Asifullah Khan , Laiba Asmatullah , Anza Malik , Shahzaib Khan , Hamna Asif

Self-supervised learning methods are gaining increasing traction in computer vision due to their recent success in reducing the gap with supervised learning. In natural language processing (NLP) self-supervised learning and transformers are…

计算机视觉与模式识别 · 计算机科学 2022-12-29 Sara Atito , Muhammad Awais , Josef Kittler

Pretrained language models such as BERT, GPT have shown great effectiveness in language understanding. The auxiliary predictive tasks in existing pretraining approaches are mostly defined on tokens, thus may not be able to capture…

计算与语言 · 计算机科学 2020-06-19 Hongchao Fang , Sicheng Wang , Meng Zhou , Jiayuan Ding , Pengtao Xie

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

We apply a Transformer architecture, specifically BERT, to learn flexible and high quality molecular representations for drug discovery problems. We study the impact of using different combinations of self-supervised tasks for pre-training,…

机器学习 · 计算机科学 2020-11-30 Benedek Fabian , Thomas Edlich , Héléna Gaspar , Marwin Segler , Joshua Meyers , Marco Fiscato , Mohamed Ahmed

Self-supervised pre-training for 3D vision has drawn increasing research interest in recent years. In order to learn informative representations, a lot of previous works exploit invariances of 3D features, e.g., perspective-invariance…

计算机视觉与模式识别 · 计算机科学 2022-07-14 Lanxiao Li , Michael Heizmann

It is known that representations from self-supervised pre-training can perform on par, and often better, on various downstream tasks than representations from fully-supervised pre-training. This has been shown in a host of settings such as…

计算机视觉与模式识别 · 计算机科学 2022-08-02 David Torpey , Richard Klein

Event cameras asynchronously capture brightness changes with low latency, high temporal resolution, and high dynamic range. However, annotation of event data is a costly and laborious process, which limits the use of deep learning methods…

计算机视觉与模式识别 · 计算机科学 2023-12-27 Simon Klenk , David Bonello , Lukas Koestler , Nikita Araslanov , Daniel Cremers

3D object representation learning is a fundamental challenge in computer vision to infer about the 3D world. Recent advances in deep learning have shown their efficiency in 3D object recognition, among which view-based methods have…

计算机视觉与模式识别 · 计算机科学 2021-03-02 Xiang Gao , Wei Hu , Guo-Jun Qi

Recently, self-supervised vision transformers have attracted unprecedented attention for their impressive representation learning ability. However, the dominant method, contrastive learning, mainly relies on an instance discrimination…

计算机视觉与模式识别 · 计算机科学 2022-01-20 Luya Wang , Feng Liang , Yangguang Li , Honggang Zhang , Wanli Ouyang , Jing Shao

Pretext training followed by task-specific fine-tuning has been a successful approach in vision and language domains. This paper proposes a self-supervised pretext training framework tailored to event sequence data. We introduce a novel…

机器学习 · 计算机科学 2024-02-19 Yimu Wang , He Zhao , Ruizhi Deng , Frederick Tung , Greg Mori

Self-supervised learning can be used for mitigating the greedy needs of Vision Transformer networks for very large fully-annotated datasets. Different classes of self-supervised learning offer representations with either good contextual…

计算机视觉与模式识别 · 计算机科学 2024-07-17 Spyros Gidaris , Andrei Bursuc , Oriane Simeoni , Antonin Vobecky , Nikos Komodakis , Matthieu Cord , Patrick Pérez