Nika, Andi

10 publications

TMLR 2025 Beyond Grids: Multi-Objective Bayesian Optimization with Adaptive Discretization Andi Nika, Sepehr Elahi, Cagin Ararat, Cem Tekin

TMLR 2025 Contextual Combinatorial Bandits with Changing Action Sets via Gaussian Processes Andi Nika, Sepehr Elahi, Cem Tekin

AISTATS 2025 Corruption Robust Offline Reinforcement Learning with Human Feedback Debmalya Mandal, Andi Nika, Parameswaran Kamalaruban, Adish Singla, Goran Radanovic

AISTATS 2025 Policy Teaching via Data Poisoning in Learning from Human Preferences Andi Nika, Jonathan Nöther, Debmalya Mandal, Parameswaran Kamalaruban, Adish Singla, Goran Radanovic

AISTATS 2024 Corruption-Robust Offline Two-Player Zero-Sum Markov Games Andi Nika, Debmalya Mandal, Adish Singla, Goran Radanovic

TMLR 2024 Defending Against Unknown Corrupted Agents: Reinforcement Learning of Adversarially Robust Nash Equilibria Andi Nika, Jonathan Nöther, Adish Singla, Goran Radanovic

ICMLW 2024 Defending Against Unknown Corrupted Agents: Reinforcement Learning of Adversarially Robust Nash Equilibria Andi Nika, Jonathan Nöther, Adish Singla, Goran Radanovic

ICML 2024 Reward Model Learning vs. Direct Policy Optimization: A Comparative Analysis of Learning from Human Preferences Andi Nika, Debmalya Mandal, Parameswaran Kamalaruban, Georgios Tzannetos, Goran Radanovic, Adish Singla

AISTATS 2023 Online Defense Strategies for Reinforcement Learning Against Adaptive Reward Poisoning Andi Nika, Adish Singla, Goran Radanovic

AISTATS 2020 Contextual Combinatorial Volatile Multi-Armed Bandit with Adaptive Discretization Andi Nika, Sepehr Elahi, Cem Tekin