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We quantitatively investigate how machine learning models leak information about the individual data records on which they were trained. We focus on the basic membership inference attack: given a data record and black-box access to a model,…

Cryptography and Security · Computer Science 2017-04-04 Reza Shokri , Marco Stronati , Congzheng Song , Vitaly Shmatikov

Machine learning models have been shown to leak information violating the privacy of their training set. We focus on membership inference attacks on machine learning models which aim to determine whether a data point was used to train the…

Cryptography and Security · Computer Science 2020-09-02 Shadi Rahimian , Tribhuvanesh Orekondy , Mario Fritz

Wearable data serves various health monitoring purposes, such as determining activity states based on user behavior and providing tailored exercise recommendations. However, the individual data perception and computational capabilities of…

Cryptography and Security · Computer Science 2024-06-21 Kongyang Chen , Dongping Zhang , Sijia Guan , Bing Mi , Jiaxing Shen , Guoqing Wang

We propose a new computationally efficient privacy-preserving identification framework based on layered sparse coding. The key idea of the proposed framework is a sparsifying transform learning with ambiguization, which consists of a…

Information Theory · Computer Science 2018-06-25 Behrooz Razeghi , Slava Voloshynovskiy , Sohrab Ferdowsi , Dimche Kostadinov

Distributed machine learning paradigms, such as federated learning, have been recently adopted in many privacy-critical applications for speech analysis. However, such frameworks are vulnerable to privacy leakage attacks from shared…

Machine Learning · Computer Science 2023-02-22 Zhuohang Li , Jiaxin Zhang , Jian Liu

Personalization of machine learning (ML) predictions for individual users/domains/enterprises is critical for practical recommendation systems. Standard personalization approaches involve learning a user/domain specific embedding that is…

In recommender systems, models mostly use a combination of embedding layers and multilayer feedforward neural networks. The high-dimensional sparse original features are downscaled in the embedding layer and then fed into the fully…

Information Retrieval · Computer Science 2022-05-19 Mohan Hasama , Jing Li

Most industrial recommender systems rely on the popular collaborative filtering (CF) technique for providing personalized recommendations to its users. However, the very nature of CF is adversarial to the idea of user privacy, because users…

Information Retrieval · Computer Science 2018-06-05 Manoj Reddy Dareddy , Ariyam Das , Junghoo Cho , Carlo Zaniolo

Our online lives generate a wealth of behavioral records -'digital footprints'- which are stored and leveraged by technology platforms. This data can be used to create value for users by personalizing services. At the same time, however, it…

Computers and Society · Computer Science 2023-12-27 Sofie Goethals , Sandra Matz , Foster Provost , Yanou Ramon , David Martens

Personalization collaborative filtering recommender systems (CFRSs) are the crucial components of popular e-commerce services. In practice, CFRSs are also particularly vulnerable to "shilling" attacks or "profile injection" attacks due to…

Information Retrieval · Computer Science 2015-06-24 Zhihai Yang

Characteristics and way of behavior of attacks and infiltrators on computer networks are usually very difficult and need an expert In addition; the advancement of computer networks, the number of attacks and infiltrations are also…

Cryptography and Security · Computer Science 2020-04-20 Amir Javadpour , Sanaz Kazemi Abharian , Guojun Wang

Considering the premise that the number of products offered grow in an exponential fashion and the amount of data that a user can assimilate before making a decision is relatively small, recommender systems help in categorizing content…

Information Retrieval · Computer Science 2024-04-26 Aditya Chichani , Juzer Golwala , Tejas Gundecha , Kiran Gawande

Online reviews and recommendation systems help users navigate overwhelming choice, but they are vulnerable to self-reinforcing distortions. This paper examines how a single malicious reviewer can exploit popularity-biased rating dynamics…

Social and Information Networks · Computer Science 2026-04-16 Itsuki Fujisaki , Kunhao Yang

Secure multi-party machine learning allows several parties to build a model on their pooled data to increase utility while not explicitly sharing data with each other. We show that such multi-party computation can cause leakage of global…

Machine Learning · Computer Science 2021-06-21 Wanrong Zhang , Shruti Tople , Olga Ohrimenko

Machine learning algorithms, when applied to sensitive data, pose a distinct threat to privacy. A growing body of prior work demonstrates that models produced by these algorithms may leak specific private information in the training data to…

Cryptography and Security · Computer Science 2018-05-08 Samuel Yeom , Irene Giacomelli , Matt Fredrikson , Somesh Jha

Sequential recommendation aims to model dynamic user behavior from historical interactions. Self-attentive methods have proven effective at capturing short-term dynamics and long-term preferences. Despite their success, these approaches…

Information Retrieval · Computer Science 2022-04-06 Jiacheng Li , Tong Zhao , Jin Li , Jim Chan , Christos Faloutsos , George Karypis , Soo-Min Pantel , Julian McAuley

In the mobile Internet era, the recommender system has become an irreplaceable tool to help users discover useful items, and thus alleviating the information overload problem. Recent deep neural network (DNN)-based recommender system…

Information Retrieval · Computer Science 2021-09-14 Qinyong Wang , Hongzhi Yin , Tong Chen , Junliang Yu , Alexander Zhou , Xiangliang Zhang

A new line of research for feature selection based on neural networks has recently emerged. Despite its superiority to classical methods, it requires many training iterations to converge and detect informative features. The computational…

Machine Learning · Computer Science 2022-11-29 Ghada Sokar , Zahra Atashgahi , Mykola Pechenizkiy , Decebal Constantin Mocanu

With the growing popularity of artificial intelligence and machine learning, a wide spectrum of attacks against deep learning models have been proposed in the literature. Both the evasion attacks and the poisoning attacks attempt to utilize…

Cryptography and Security · Computer Science 2022-08-16 Zeyan Liu , Fengjun Li , Jingqiang Lin , Zhu Li , Bo Luo

Latent factor models for recommender systems represent users and items as low dimensional vectors. Privacy risks of such systems have previously been studied mostly in the context of recovery of personal information in the form of usage…

Information Retrieval · Computer Science 2018-12-19 Yehezkel S. Resheff , Yanai Elazar , Moni Shahar , Oren Sar Shalom