no code implementations • 29 Oct 2024 • Saeed Mahloujifar, Luca Melis, Kamalika Chaudhuri
Empirical auditing has emerged as a means of catching some of the flaws in the implementation of privacy-preserving algorithms.
no code implementations • 24 Jun 2024 • Filippo Galli, Luca Melis, Tommaso Cucinotta
The potential of transformer-based LLMs risks being hindered by privacy concerns due to their reliance on extensive datasets, possibly including sensitive information.
1 code implementation • 25 Sep 2023 • Tianyu Du, Luca Melis, Ting Wang
We present ReMasker, a new method of imputing missing values in tabular data by extending the masked autoencoding framework.
no code implementations • 8 Jun 2023 • Ruiquan Huang, Huanyu Zhang, Luca Melis, Milan Shen, Meisam Hajzinia, Jing Yang
This paper studies federated linear contextual bandits under the notion of user-level differential privacy (DP).
no code implementations • 22 May 2023 • Xinchi Qiu, Ilias Leontiadis, Luca Melis, Alex Sablayrolles, Pierre Stock
In particular, on-device machine learning allows us to avoid sharing raw data with a third-party server during inference.
no code implementations • 7 Jun 2022 • Meisam Hejazinia Dzmitry Huba, Ilias Leontiadis, Kiwan Maeng, Mani Malek, Luca Melis, Ilya Mironov, Milad Nasr, Kaikai Wang, Carole-Jean Wu
Despite FL's initial success, many important deep learning use cases, such as ranking and recommendation tasks, have been limited from on-device learning.
no code implementations • 30 May 2022 • Kiwan Maeng, Haiyu Lu, Luca Melis, John Nguyen, Mike Rabbat, Carole-Jean Wu
Federated learning (FL) is an effective mechanism for data privacy in recommender systems by running machine learning model training on-device.
2 code implementations • 11 Mar 2021 • Sergul Aydore, William Brown, Michael Kearns, Krishnaram Kenthapadi, Luca Melis, Aaron Roth, Ankit Siva
We propose, implement, and evaluate a new algorithm for releasing answers to very large numbers of statistical queries like $k$-way marginals, subject to differential privacy.
1 code implementation • NeurIPS 2021 • Ecenaz Erdemir, Jeffrey Bickford, Luca Melis, Sergul Aydore
Robustness of machine learning models is critical for security related applications, where real-world adversaries are uniquely focused on evading neural network based detectors.
1 code implementation • 5 Oct 2018 • Luca Melis, Apostolos Pyrgelis, Emiliano De Cristofaro
Unfortunately, however, research on CPB has only focused on increasing the number of predicted attacks but has not considered the impact on false positives and false negatives.
Cryptography and Security
1 code implementation • 10 May 2018 • Luca Melis, Congzheng Song, Emiliano De Cristofaro, Vitaly Shmatikov
First, we show that an adversarial participant can infer the presence of exact data points -- for example, specific locations -- in others' training data (i. e., membership inference).
no code implementations • 13 Sep 2017 • Gergely Acs, Luca Melis, Claude Castelluccia, Emiliano De Cristofaro
We model the generator distribution of the training data with a mixture of $k$ generative neural networks.
1 code implementation • 22 May 2017 • Jamie Hayes, Luca Melis, George Danezis, Emiliano De Cristofaro
Generative models estimate the underlying distribution of a dataset to generate realistic samples according to that distribution.
no code implementations • 13 Dec 2015 • Luca Melis, Apostolos Pyrgelis, Emiliano De Cristofaro
(Withdrawn) Collaborative security initiatives are increasingly often advocated to improve timeliness and effectiveness of threat mitigation.