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The usage of deep learning is being escalated in many applications. Due to its outstanding performance, it is being used in a variety of security and privacy-sensitive areas in addition to conventional applications. One of the key aspects…

Cryptography and Security · Computer Science 2022-05-17 Zhaoxi Zhang , Leo Yu Zhang , Xufei Zheng , Bilal Hussain Abbasi , Shengshan Hu

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…

Cryptography and Security · Computer Science 2021-08-26 Hongbin Liu , Jinyuan Jia , Wenjie Qu , Neil Zhenqiang Gong

We propose Recognition as Part Composition (RPC), an image encoding approach inspired by human cognition. It is based on the cognitive theory that humans recognize complex objects by components, and that they build a small compact…

Computer Vision and Pattern Recognition · Computer Science 2022-04-19 Samarth Mishra , Pengkai Zhu , Venkatesh Saligrama

In this paper, we show that recent advances in self-supervised feature learning enable unsupervised object discovery and semantic segmentation with a performance that matches the state of the field on supervised semantic segmentation 10…

Computer Vision and Pattern Recognition · Computer Science 2023-05-02 Andrii Zadaianchuk , Matthaeus Kleindessner , Yi Zhu , Francesco Locatello , Thomas Brox

Training deep neural networks to estimate the viewpoint of objects requires large labeled training datasets. However, manually labeling viewpoints is notoriously hard, error-prone, and time-consuming. On the other hand, it is relatively…

Computer Vision and Pattern Recognition · Computer Science 2020-04-07 Siva Karthik Mustikovela , Varun Jampani , Shalini De Mello , Sifei Liu , Umar Iqbal , Carsten Rother , Jan Kautz

The surge in multimodal AI's success has sparked concerns over data privacy in vision-and-language tasks. While CLIP has revolutionized multimodal learning through joint training on images and text, its potential to unintentionally disclose…

Machine Learning · Computer Science 2024-03-04 Alyssa Huang , Peihan Liu , Ryumei Nakada , Linjun Zhang , Wanrong Zhang

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…

Machine Learning · Computer Science 2024-07-24 Dominik Hintersdorf , Lukas Struppek , Daniel Neider , Kristian Kersting

Self-supervised learning has become an increasingly important paradigm in the domain of machine intelligence. Furthermore, evidence for self-supervised adaptation, such as contrastive formulations, has emerged in recent computational…

Neural and Evolutionary Computing · Computer Science 2025-03-31 Alexander Ororbia , Karl Friston , Rajesh P. N. Rao

Co-part segmentation is an important problem in computer vision for its rich applications. We propose an unsupervised learning approach for co-part segmentation from images. For the training stage, we leverage motion information embedded in…

Computer Vision and Pattern Recognition · Computer Science 2021-06-11 Qingzhe Gao , Bin Wang , Libin Liu , Baoquan Chen

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.…

Computer Vision and Pattern Recognition · Computer Science 2023-08-14 Prakash Chandra Chhipa , Johan Rodahl Holmgren , Kanjar De , Rajkumar Saini , Marcus Liwicki

Multiple views of data, both naturally acquired (e.g., image and audio) and artificially produced (e.g., via adding different noise to data samples), have proven useful in enhancing representation learning. Natural views are often handled…

Machine Learning · Computer Science 2022-04-12 Qi Lyu , Xiao Fu , Weiran Wang , Songtao Lu

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…

Machine Learning · Computer Science 2024-02-05 Xiao Shou , Dharmashankar Subramanian , Debarun Bhattacharjya , Tian Gao , Kristin P. Bennet

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…

Machine Learning · Computer Science 2019-08-16 Stacey Truex , Nathalie Baracaldo , Ali Anwar , Thomas Steinke , Heiko Ludwig , Rui Zhang , Yi Zhou

Semi-supervised algorithms aim to learn prediction functions from a small set of labeled observations and a large set of unlabeled observations. Because this framework is relevant in many applications, they have received a lot of interest…

Machine Learning · Computer Science 2025-02-17 Massih-Reza Amini , Vasilii Feofanov , Loic Pauletto , Lies Hadjadj , Emilie Devijver , Yury Maximov

Today's success of state of the art methods for semantic segmentation is driven by large datasets. Data is considered an important asset that needs to be protected, as the collection and annotation of such datasets comes at significant…

Computer Vision and Pattern Recognition · Computer Science 2020-09-22 Yang He , Shadi Rahimian , Bernt Schiele , Mario Fritz

The high cost of model training makes it increasingly desirable to develop techniques for unlearning. These techniques seek to remove the influence of a training example without having to retrain the model from scratch. Intuitively, once a…

Machine Learning · Computer Science 2024-05-22 Jamie Hayes , Ilia Shumailov , Eleni Triantafillou , Amr Khalifa , Nicolas Papernot

Self-supervised learning aims to learn representations from the data itself without explicit manual supervision. Existing efforts ignore a crucial aspect of self-supervised learning - the ability to scale to large amount of data because…

Computer Vision and Pattern Recognition · Computer Science 2019-06-07 Priya Goyal , Dhruv Mahajan , Abhinav Gupta , Ishan Misra

In a membership inference attack, an attacker aims to infer whether a data sample is in a target classifier's training dataset or not. Specifically, given a black-box access to the target classifier, the attacker trains a binary classifier,…

Cryptography and Security · Computer Science 2019-12-20 Jinyuan Jia , Ahmed Salem , Michael Backes , Yang Zhang , Neil Zhenqiang Gong

We witnessed a massive growth in the supervised learning paradigm in the past decade. Supervised learning requires a large amount of labeled data to reach state-of-the-art performance. However, labeling the samples requires a lot of human…

Computer Vision and Pattern Recognition · Computer Science 2021-11-04 Mrinal Anand , Aditya Garg

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…

Cryptography and Security · Computer Science 2020-07-15 Yanjun Zhang , Guangdong Bai , Xue Li , Caitlin Curtis , Chen Chen , Ryan K L Ko