Chowdhury, Sayak Ray

19 publications

ECML-PKDD 2025 Active Preference Optimization for Sample Efficient RLHF Nirjhar Das, Souradip Chakraborty, Aldo Pacchiano, Sayak Ray Chowdhury

ICMLW 2024 Active Preference Optimization for Sample Efficient RLHF Nirjhar Das, Souradip Chakraborty, Aldo Pacchiano, Sayak Ray Chowdhury

ICLR 2024 On Differentially Private Federated Linear Contextual Bandits Xingyu Zhou, Sayak Ray Chowdhury

COLT 2023 Bregman Deviations of Generic Exponential Families Sayak Ray Chowdhury, Patrick Saux, Odalric Maillard, Aditya Gopalan

UAI 2023 Combinatorial Categorized Bandits with Expert Rankings Sayak Ray Chowdhury, Gaurav Sinha, Nagarajan Natarajan, Amit Sharma

ICMLW 2023 Differentially Private Reward Estimation from Preference Based Feedback Sayak Ray Chowdhury, Xingyu Zhou

ICLR 2023 Distributed Differential Privacy in Multi-Armed Bandits Sayak Ray Chowdhury, Xingyu Zhou

ICMLW 2023 On Differentially Private Federated Linear Contextual Bandits Xingyu Zhou, Sayak Ray Chowdhury

AAAI 2022 Differentially Private Regret Minimization in Episodic Markov Decision Processes Sayak Ray Chowdhury, Xingyu Zhou

NeurIPSW 2022 Distributed Differential Privacy in Multi-Armed Bandits Sayak Ray Chowdhury, Xingyu Zhou

ECML-PKDD 2022 Model Selection in Reinforcement Learning with General Function Approximations Avishek Ghosh, Sayak Ray Chowdhury

ICML 2022 Shuffle Private Linear Contextual Bandits Sayak Ray Chowdhury, Xingyu Zhou

ACML 2022 Value Function Approximations via Kernel Embeddings for No-Regret Reinforcement Learning Sayak Ray Chowdhury, Rafael Oliveira

AISTATS 2021 No-Regret Algorithms for Multi-Task Bayesian Optimization Sayak Ray Chowdhury, Aditya Gopalan

AISTATS 2021 Reinforcement Learning in Parametric MDPs with Exponential Families Sayak Ray Chowdhury, Aditya Gopalan, Odalric-Ambrym Maillard

NeurIPS 2019 Bayesian Optimization Under Heavy-Tailed Payoffs Sayak Ray Chowdhury, Aditya Gopalan

AISTATS 2019 Online Learning in Kernelized Markov Decision Processes Sayak Ray Chowdhury, Aditya Gopalan

AAAI 2017 Misspecified Linear Bandits Avishek Ghosh, Sayak Ray Chowdhury, Aditya Gopalan

ICML 2017 On Kernelized Multi-Armed Bandits Sayak Ray Chowdhury, Aditya Gopalan