Search Results for author: Panayiotis Danassis

Found 8 papers, 2 papers with code

A Practical Influence Approximation for Privacy-Preserving Data Filtering in Federated Learning

no code implementations23 May 2022 Ljubomir Rokvic, Panayiotis Danassis, Boi Faltings

Federated Learning by nature is susceptible to low-quality, corrupted, or even malicious data that can severely degrade the quality of the learned model.

Data Valuation Federated Learning +2

AI-driven Prices for Externalities and Sustainability in Production Markets

1 code implementation10 Jun 2021 Panayiotis Danassis, Aris Filos-Ratsikas, Haipeng Chen, Milind Tambe, Boi Faltings

Traditional competitive markets do not account for negative externalities; indirect costs that some participants impose on others, such as the cost of over-appropriating a common-pool resource (which diminishes future stock, and thus harvest, for everyone).

Fairness

Improving Multi-agent Coordination by Learning to Estimate Contention

no code implementations9 May 2021 Panayiotis Danassis, Florian Wiedemair, Boi Faltings

We present a multi-agent learning algorithm, ALMA-Learning, for efficient and fair allocations in large-scale systems.

Scheduling

Improved Cooperation by Exploiting a Common Signal

1 code implementation3 Feb 2021 Panayiotis Danassis, Zeki Doruk Erden, Boi Faltings

Inspired by human behavior, we investigate the learning dynamics and emergence of temporal conventions, focusing on common-pool resources.

A Distributed Differentially Private Algorithm for Resource Allocation in Unboundedly Large Settings

no code implementations16 Nov 2020 Panayiotis Danassis, Aleksei Triastcyn, Boi Faltings

We introduce a practical and scalable algorithm (PALMA) for solving one of the fundamental problems of multi-agent systems -- finding matches and allocations -- in unboundedly large settings (e. g., resource allocation in urban environments, mobility-on-demand systems, etc.

Privacy Preserving

Putting Ridesharing to the Test: Efficient and Scalable Solutions and the Power of Dynamic Vehicle Relocation

no code implementations17 Dec 2019 Panayiotis Danassis, Marija Sakota, Aris Filos-Ratsikas, Boi Faltings

We study the optimization of large-scale, real-time ridesharing systems and propose a modular design methodology, Component Algorithms for Ridesharing (CAR).

Anytime Heuristic for Weighted Matching Through Altruism-Inspired Behavior

no code implementations25 Feb 2019 Panayiotis Danassis, Aris Filos-Ratsikas, Boi Faltings

We present a novel anytime heuristic (ALMA), inspired by the human principle of altruism, for solving the assignment problem.

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