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Prabhat Nagarajan

3 accepted papers

2026

Accelerating Q-learning through Efficient Value-sharing across Actions

ICML 2026spotlight

Learning action-values efficiently is central to reinforcement learning (RL), as they underpin many control algorithms such as Q-learning. However, action-value learning can be slow, requiring many updates to move values from their initialization, typically near zero, to their true values, which may…

Cited by 0Source ↗Scholar ↗
2020

Distributed Reinforcement Learning of Targeted Grasping with Active Vision for Mobile Manipulators

IROS 2020poster

Developing personal robots that can perform a diverse range of manipulation tasks in unstructured environments necessitates solving several challenges for robotic grasping systems. We take a step towards this broader goal by presenting the first RL-based system, to our knowledge, for a mobile manipu…

Cited by 26Source ↗Scholar ↗
2019

Extrapolating Beyond Suboptimal Demonstrations via Inverse Reinforcement Learning from Observations

ICML 2019oral

A critical flaw of existing inverse reinforcement learning (IRL) methods is their inability to significantly outperform the demonstrator. This is because IRL typically seeks a reward function that makes the demonstrator appear near-optimal, rather than inferring the underlying intentions of the demo…