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Alexander Sasha Vezhnevets

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Generative agent-based modeling with actions grounded in physical, social, or digital space using Concordia

Dec 13, 2023
Alexander Sasha Vezhnevets, John P. Agapiou, Avia Aharon, Ron Ziv, Jayd Matyas, Edgar A. Duéñez-Guzmán, William A. Cunningham, Simon Osindero, Danny Karmon, Joel Z. Leibo

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Diversity Through Exclusion (DTE): Niche Identification for Reinforcement Learning through Value-Decomposition

Feb 03, 2023
Peter Sunehag, Alexander Sasha Vezhnevets, Edgar Duéñez-Guzmán, Igor Mordach, Joel Z. Leibo

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Melting Pot 2.0

Dec 13, 2022
John P. Agapiou, Alexander Sasha Vezhnevets, Edgar A. Duéñez-Guzmán, Jayd Matyas, Yiran Mao, Peter Sunehag, Raphael Köster, Udari Madhushani, Kavya Kopparapu, Ramona Comanescu, DJ Strouse, Michael B. Johanson, Sukhdeep Singh, Julia Haas, Igor Mordatch, Dean Mobbs, Joel Z. Leibo

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Hidden Agenda: a Social Deduction Game with Diverse Learned Equilibria

Jan 05, 2022
Kavya Kopparapu, Edgar A. Duéñez-Guzmán, Jayd Matyas, Alexander Sasha Vezhnevets, John P. Agapiou, Kevin R. McKee, Richard Everett, Janusz Marecki, Joel Z. Leibo, Thore Graepel

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Statistical discrimination in learning agents

Oct 21, 2021
Edgar A. Duéñez-Guzmán, Kevin R. McKee, Yiran Mao, Ben Coppin, Silvia Chiappa, Alexander Sasha Vezhnevets, Michiel A. Bakker, Yoram Bachrach, Suzanne Sadedin, William Isaac, Karl Tuyls, Joel Z. Leibo

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Scalable Evaluation of Multi-Agent Reinforcement Learning with Melting Pot

Jul 14, 2021
Joel Z. Leibo, Edgar Duéñez-Guzmán, Alexander Sasha Vezhnevets, John P. Agapiou, Peter Sunehag, Raphael Koster, Jayd Matyas, Charles Beattie, Igor Mordatch, Thore Graepel

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Options as responses: Grounding behavioural hierarchies in multi-agent RL

Jun 06, 2019
Alexander Sasha Vezhnevets, Yuhuai Wu, Remi Leblond, Joel Z. Leibo

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