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Self-supervision is one of the hallmarks of representation learning in the increasingly popular suite of foundation models including large language models such as BERT and GPT-3, but it has not been pursued in the context of multivariate…

机器学习 · 计算机科学 2024-02-05 Xiao Shou , Dharmashankar Subramanian , Debarun Bhattacharjya , Tian Gao , Kristin P. Bennet

Privacy is a crucial concern in collaborative machine vision where a part of a Deep Neural network (DNN) model runs on the edge, and the rest is executed on the cloud. In such applications, the machine vision model does not need the exact…

图像与视频处理 · 电气工程与系统科学 2024-09-05 Bardia Azizian , Ivan V. Bajic

Co-training, extended from self-training, is one of the frameworks for semi-supervised learning. Without natural split of features, single-view co-training works at the cost of training extra classifiers, where the algorithm should be…

机器学习 · 计算机科学 2024-08-22 Mingcai Chen , Yuntao Du , Yi Zhang , Shuwei Qian , Chongjun Wang

The proliferation of large AI models trained on uncurated, often sensitive web-scraped data has raised significant privacy concerns. One of the concerns is that adversaries can extract information about the training data using privacy…

机器学习 · 计算机科学 2024-07-24 Dominik Hintersdorf , Lukas Struppek , Daniel Neider , Kristian Kersting

While being deployed in many critical applications as core components, machine learning (ML) models are vulnerable to various security and privacy attacks. One major privacy attack in this domain is membership inference, where an adversary…

密码学与安全 · 计算机科学 2020-09-11 Yang Zou , Zhikun Zhang , Michael Backes , Yang Zhang

Matching objects across partially overlapping camera views is crucial in multi-camera systems and requires a view-invariant feature extraction network. Training such a network with cycle-consistency circumvents the need for labor-intensive…

计算机视觉与模式识别 · 计算机科学 2025-01-13 Fedor Taggenbrock , Gertjan Burghouts , Ronald Poppe

This paper presents a semi-supervised learning framework to train a keypoint detector using multiview image streams given the limited labeled data (typically $<$4\%). We leverage the complementary relationship between multiview geometry and…

计算机视觉与模式识别 · 计算机科学 2019-03-26 Yilun Zhang , Hyun Soo Park

Self-supervised learning (SSL) methods aim to learn view-invariant representations by maximizing the similarity between the features extracted from different crops of the same image regardless of cropping size and content. In essence, this…

计算机视觉与模式识别 · 计算机科学 2022-04-14 Tong Zhang , Congpei Qiu , Wei Ke , Sabine Süsstrunk , Mathieu Salzmann

Membership inference attacks allow a malicious entity to predict whether a sample is used during training of a victim model or not. State-of-the-art membership inference attacks have shown to achieve good accuracy which poses a great…

机器学习 · 计算机科学 2022-03-07 Shahbaz Rezaei , Xin Liu

Self-supervised instance discrimination is an effective contrastive pretext task to learn feature representations and address limited medical image annotations. The idea is to make features of transformed versions of the same images similar…

计算机视觉与模式识别 · 计算机科学 2022-11-17 Yejia Zhang , Xinrong Hu , Nishchal Sapkota , Yiyu Shi , Danny Z. Chen

Perceptual understanding of the scene and the relationship between its different components is important for successful completion of robotic tasks. Representation learning has been shown to be a powerful technique for this, but most of the…

In this work, we study different approaches to self-supervised pretraining of object detection models. We first design a general framework to learn a spatially consistent dense representation from an image, by randomly sampling and…

计算机视觉与模式识别 · 计算机科学 2022-08-12 Trung Dang , Simon Kornblith , Huy Thong Nguyen , Peter Chin , Maryam Khademi

Membership inference attacks have emerged as a significant privacy concern in the training of deep learning models, where attackers can infer whether a data point was part of the training set based on the model's outputs. To address this…

机器学习 · 计算机科学 2025-01-07 Ying Chen , Jiajing Chen , Yijie Weng , ChiaHua Chang , Dezhi Yu , Guanbiao Lin

The advancement of visual tracking has continuously been brought by deep learning models. Typically, supervised learning is employed to train these models with expensive labeled data. In order to reduce the workload of manual annotations…

计算机视觉与模式识别 · 计算机科学 2020-07-24 Ning Wang , Wengang Zhou , Yibing Song , Chao Ma , Wei Liu , Houqiang Li

Federated learning facilitates the collaborative training of models without the sharing of raw data. However, recent attacks demonstrate that simply maintaining data locality during training processes does not provide sufficient privacy…

机器学习 · 计算机科学 2019-08-16 Stacey Truex , Nathalie Baracaldo , Ali Anwar , Thomas Steinke , Heiko Ludwig , Rui Zhang , Yi Zhou

We introduce a novel self-supervised learning method based on adversarial training. Our objective is to train a discriminator network to distinguish real images from images with synthetic artifacts, and then to extract features from its…

计算机视觉与模式识别 · 计算机科学 2018-06-14 Simon Jenni , Paolo Favaro

Consistency learning plays a crucial role in semi-supervised medical image segmentation as it enables the effective utilization of limited annotated data while leveraging the abundance of unannotated data. The effectiveness and efficiency…

计算机视觉与模式识别 · 计算机科学 2023-05-26 Zhenxi Zhang , Ran Ran , Chunna Tian , Heng Zhou , Xin Li , Fan Yang , Zhicheng Jiao

Self-supervised learning in computer vision aims to leverage the inherent structure and relationships within data to learn meaningful representations without explicit human annotation, enabling a holistic understanding of visual scenes.…

计算机视觉与模式识别 · 计算机科学 2023-08-14 Prakash Chandra Chhipa , Johan Rodahl Holmgren , Kanjar De , Rajkumar Saini , Marcus Liwicki

The central idea of contrastive learning is to discriminate between different instances and force different views from the same instance to share the same representation. To avoid trivial solutions, augmentation plays an important role in…

计算机视觉与模式识别 · 计算机科学 2021-11-24 Zhiwu Qing , Ziyuan Huang , Shiwei Zhang , Mingqian Tang , Changxin Gao , Marcelo H. Ang , Rong Jin , Nong Sang

Given a set of unlabeled images or (image, text) pairs, contrastive learning aims to pre-train an image encoder that can be used as a feature extractor for many downstream tasks. In this work, we propose EncoderMI, the first membership…

密码学与安全 · 计算机科学 2021-08-26 Hongbin Liu , Jinyuan Jia , Wenjie Qu , Neil Zhenqiang Gong