← Search

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 0SourceScholar
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 26SourceScholar
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…