Search Results for author: Aditya Modi

Found 9 papers, 1 papers with code

On the Statistical Efficiency of Reward-Free Exploration in Non-Linear RL

no code implementations21 Jun 2022 Jinglin Chen, Aditya Modi, Akshay Krishnamurthy, Nan Jiang, Alekh Agarwal

We study reward-free reinforcement learning (RL) under general non-linear function approximation, and establish sample efficiency and hardness results under various standard structural assumptions.

Reinforcement Learning (RL)

Joint Learning of Linear Time-Invariant Dynamical Systems

no code implementations21 Dec 2021 Aditya Modi, Mohamad Kazem Shirani Faradonbeh, Ambuj Tewari, George Michailidis

Linear time-invariant systems are very popular models in system theory and applications.

Clinician-in-the-Loop Decision Making: Reinforcement Learning with Near-Optimal Set-Valued Policies

1 code implementation ICML 2020 Shengpu Tang, Aditya Modi, Michael W. Sjoding, Jenna Wiens

We analyze the theoretical properties of the proposed algorithm, providing optimality guarantees and demonstrate our approach on simulated environments and a real clinical task.

Decision Making Reinforcement Learning (RL)

Sample Complexity of Reinforcement Learning using Linearly Combined Model Ensembles

no code implementations23 Oct 2019 Aditya Modi, Nan Jiang, Ambuj Tewari, Satinder Singh

As an extension, we also consider the more challenging problem of model selection, where the state features are unknown and can be chosen from a large candidate set.

Model Selection reinforcement-learning +1

Metareasoning in Modular Software Systems: On-the-Fly Configuration using Reinforcement Learning with Rich Contextual Representations

no code implementations12 May 2019 Aditya Modi, Debadeepta Dey, Alekh Agarwal, Adith Swaminathan, Besmira Nushi, Sean Andrist, Eric Horvitz

We address the opportunity to maximize the utility of an overall computing system by employing reinforcement learning to guide the configuration of the set of interacting modules that comprise the system.

Decision Making reinforcement-learning +1

No-regret Exploration in Contextual Reinforcement Learning

no code implementations14 Mar 2019 Aditya Modi, Ambuj Tewari

We consider the recently proposed reinforcement learning (RL) framework of Contextual Markov Decision Processes (CMDP), where the agent interacts with a (potentially adversarial) sequence of episodic tabular MDPs.

reinforcement-learning Reinforcement Learning (RL)

Markov Decision Processes with Continuous Side Information

no code implementations15 Nov 2017 Aditya Modi, Nan Jiang, Satinder Singh, Ambuj Tewari

Because our lower bound has an exponential dependence on the dimension, we consider a tractable linear setting where the context is used to create linear combinations of a finite set of MDPs.

PAC learning Reinforcement Learning (RL)

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