Search Results for author: Akbar Rafiey

Found 4 papers, 0 papers with code

Decomposable Submodular Maximization in Federated Setting

no code implementations31 Jan 2024 Akbar Rafiey

To address these issues, we propose a {\em federated optimization} setting for decomposable submodular optimization.

Recommendation Systems

Private Boosted Decision Trees via Smooth Re-Weighting

no code implementations29 Jan 2022 Vahid R. Asadi, Marco L. Carmosino, Mohammadmahdi Jahanara, Akbar Rafiey, Bahar Salamatian

Differential Privacy is the appropriate mathematical framework for formal guarantees of privacy, and boosted decision trees are a popular machine learning technique.

BIG-bench Machine Learning

Sparsification of Decomposable Submodular Functions

no code implementations18 Jan 2022 Akbar Rafiey, Yuichi Yoshida

The underlying submodular functions for many of these tasks are decomposable, i. e., they are sum of several simple submodular functions.

Fast and Private Submodular and $k$-Submodular Functions Maximization with Matroid Constraints

no code implementations ICML 2020 Akbar Rafiey, Yuichi Yoshida

In this paper, we study the problem of maximizing monotone submodular functions subject to matroid constraints in the framework of differential privacy.

Data Summarization

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