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Federated learning is a learning method for training models over multiple participants without directly sharing their raw data, and it has been expected to be a privacy protection method for training data. In contrast, attack methods have…

密码学与安全 · 计算机科学 2023-08-02 Rei Aso , Sayaka Shiota , Hitoshi Kiya

In this paper, we propose a novel self-supervised representation learning by taking advantage of a neighborhood-relational encoding (NRE) among the training data. Conventional unsupervised learning methods only focused on training deep…

计算机视觉与模式识别 · 计算机科学 2019-08-29 Mohammad Sabokrou , Mohammad Khalooei , Ehsan Adeli

In video surveillance, person re-identification is the task of searching person images in non-overlapping cameras. Though supervised methods for person re-identification have attained impressive performance, obtaining large scale cross-view…

计算机视觉与模式识别 · 计算机科学 2019-10-10 T M Feroz Ali , Subhasis Chaudhuri

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

This paper studies learning the representations of whole graphs in both unsupervised and semi-supervised scenarios. Graph-level representations are critical in a variety of real-world applications such as predicting the properties of…

机器学习 · 计算机科学 2020-01-20 Fan-Yun Sun , Jordan Hoffmann , Vikas Verma , Jian Tang

In many machine learning applications, from medical diagnostics to autonomous driving, the availability of prior knowledge can be used to improve the predictive performance of learning algorithms and incorporate `physical,' `domain…

计算机视觉与模式识别 · 计算机科学 2018-05-25 Devansh Bisla , Anna Choromanska

Ensuring the privacy of research participants is vital, even more so in healthcare environments. Deep learning approaches to neuroimaging require large datasets, and this often necessitates sharing data between multiple sites, which is…

定量方法 · 定量生物学 2021-06-04 Umang Gupta , Dimitris Stripelis , Pradeep K. Lam , Paul M. Thompson , José Luis Ambite , Greg Ver Steeg

Learning self-supervised video representation predominantly focuses on discriminating instances generated from simple data augmentation schemes. However, the learned representation often fails to generalize over unseen camera viewpoints. To…

计算机视觉与模式识别 · 计算机科学 2021-12-08 Srijan Das , Michael S. Ryoo

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

When multiple parties that deal with private data aim for a collaborative prediction task such as medical image classification, they are often constrained by data protection regulations and lack of trust among collaborating parties. If done…

密码学与安全 · 计算机科学 2021-02-22 Ismat Jarin , Birhanu Eshete

This paper aims to improve privacy-preserving visual recognition, an increasingly demanded feature in smart camera applications, by formulating a unique adversarial training framework. The proposed framework explicitly learns a degradation…

计算机视觉与模式识别 · 计算机科学 2020-10-26 Zhenyu Wu , Zhangyang Wang , Zhaowen Wang , Hailin Jin

Collaborative learning enables two or more participants, each with their own training dataset, to collaboratively learn a joint model. It is desirable that the collaboration should not cause the disclosure of either the raw datasets of each…

密码学与安全 · 计算机科学 2020-07-15 Yanjun Zhang , Guangdong Bai , Xue Li , Caitlin Curtis , Chen Chen , Ryan K L Ko

The recently advanced unsupervised learning approaches use the siamese-like framework to compare two "views" from the same image for learning representations. Making the two views distinctive is a core to guarantee that unsupervised methods…

计算机视觉与模式识别 · 计算机科学 2022-02-18 Zhiqiang Shen , Zechun Liu , Zhuang Liu , Marios Savvides , Trevor Darrell , Eric Xing

This work tackles the problem of semi-supervised learning of image classifiers. Our main insight is that the field of semi-supervised learning can benefit from the quickly advancing field of self-supervised visual representation learning.…

计算机视觉与模式识别 · 计算机科学 2019-07-24 Xiaohua Zhai , Avital Oliver , Alexander Kolesnikov , Lucas Beyer

For a robot to perform complex manipulation tasks, it is necessary for it to have a good grasping ability. However, vision based robotic grasp detection is hindered by the unavailability of sufficient labelled data. Furthermore, the…

机器学习 · 计算机科学 2020-01-31 Mridul Mahajan , Tryambak Bhattacharjee , Arya Krishnan , Priya Shukla , G C Nandi

Since machine learning model is often trained on a limited data set, the model is trained multiple times on the same data sample, which causes the model to memorize most of the training set data. Membership Inference Attacks (MIAs) exploit…

机器学习 · 计算机科学 2024-11-19 Depeng Chen , Xiao Liu , Jie Cui , Hong Zhong

Unsupervised representation learning methods like SwAV are proved to be effective in learning visual semantics of a target dataset. The main idea behind these methods is that different views of a same image represent the same semantics. In…

计算机视觉与模式识别 · 计算机科学 2022-06-13 Mehdi Seyfi , Amin Banitalebi-Dehkordi , Yong Zhang

We present a practical method for protecting data during the inference phase of deep learning based on bipartite topology threat modeling and an interactive adversarial deep network construction. We term this approach \emph{Privacy…

密码学与安全 · 计算机科学 2018-12-10 Jianfeng Chi , Emmanuel Owusu , Xuwang Yin , Tong Yu , William Chan , Patrick Tague , Yuan Tian

Unsupervised 3D representation learning reduces the burden of labeling multimodal 3D data for fusion perception tasks. Among different pre-training paradigms, differentiable-rendering-based methods have shown most promise. However, existing…

计算机视觉与模式识别 · 计算机科学 2026-03-02 Runjian Chen , Hang Zhang , Avinash Ravichandran , Hyoungseob Park , Wenqi Shao , Alex Wong , Ping Luo

We propose an approach to self-supervised representation learning based on maximizing mutual information between features extracted from multiple views of a shared context. For example, one could produce multiple views of a local…

机器学习 · 计算机科学 2019-07-09 Philip Bachman , R Devon Hjelm , William Buchwalter