Search Results for author: Tomer Gafni

Found 7 papers, 0 papers with code

SINR-Aware Deep Reinforcement Learning for Distributed Dynamic Channel Allocation in Cognitive Interference Networks

no code implementations17 Feb 2024 Yaniv Cohen, Tomer Gafni, Ronen Greenberg, Kobi Cohen

We propose a novel multi-agent reinforcement learning (RL) framework for distributed DCA, named Channel Allocation RL To Overlapped Networks (CARLTON).

Multi-agent Reinforcement Learning Reinforcement Learning (RL)

Federated Learning from Heterogeneous Data via Controlled Bayesian Air Aggregation

no code implementations30 Mar 2023 Tomer Gafni, Kobi Cohen, Yonina C. Eldar

To handle statistical heterogeneity of users data, which is a second major challenge in FL, we extend BAAF to allow for appropriate local updates by the users and develop the Controlled Bayesian Air Aggregation Federated-learning (COBAAF) algorithm.

Federated Learning

Restless Multi-Armed Bandits under Exogenous Global Markov Process

no code implementations28 Feb 2022 Tomer Gafni, Michal Yemini, Kobi Cohen

Motivated by recent studies on related RMAB settings, the regret is defined as the reward loss with respect to a player that knows the dynamics of the problem, and plays at each time t the arm that maximizes the expected immediate value.

Multi-Armed Bandits

Learning in Restless Bandits under Exogenous Global Markov Process

no code implementations17 Dec 2021 Tomer Gafni, Michal Yemini, Kobi Cohen

Motivated by recent studies on related RMAB settings, the regret is defined as the reward loss with respect to a player that knows the dynamics of the problem, and plays at each time $t$ the arm that maximizes the expected immediate value.

Federated Learning: A Signal Processing Perspective

no code implementations31 Mar 2021 Tomer Gafni, Nir Shlezinger, Kobi Cohen, Yonina C. Eldar, H. Vincent Poor

Learning in a federated manner differs from conventional centralized machine learning, and poses several core unique challenges and requirements, which are closely related to classical problems studied in the areas of signal processing and communications.

BIG-bench Machine Learning Federated Learning

Distributed Learning over Markovian Fading Channels for Stable Spectrum Access

no code implementations27 Jan 2021 Tomer Gafni, Kobi Cohen

By contrast, we consider a more general and practical model, where each channel yields a different expected rate for each user.

Learning in Restless Multi-Armed Bandits via Adaptive Arm Sequencing Rules

no code implementations19 Jun 2019 Tomer Gafni, Kobi Cohen

Although existing methods have shown a logarithmic regret order with time in this RMAB setting, the theoretical analysis shows a significant improvement in the regret scaling with respect to the system parameters under ASR.

Multi-Armed Bandits

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