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Kishor Jothimurugan

4 accepted papers

2023

Robust Subtask Learning for Compositional Generalization

ICML 2023poster

Compositional reinforcement learning is a promising approach for training policies to perform complex long-horizon tasks. Typically, a high-level task is decomposed into a sequence of subtasks and a separate policy is trained to perform each subtask. In this paper, we focus on the problem of trainin…

2021

Abstract Value Iteration for Hierarchical Reinforcement Learning

AISTATS 2021poster

We propose a novel hierarchical reinforcement learning framework for control with continuous state and action spaces. In our framework, the user specifies subgoal regions which are subsets of states; then, we (i) learn options that serve as transitions between these subgoal regions, and (ii) constru…

2021

Compositional Reinforcement Learning from Logical Specifications

NeurIPS 2021poster

We study the problem of learning control policies for complex tasks given by logical specifications. Recent approaches automatically generate a reward function from a given specification and use a suitable reinforcement learning algorithm to learn a policy that maximizes the expected reward. These a…

2019

A Composable Specification Language for Reinforcement Learning Tasks

NeurIPS 2019poster

Reinforcement learning is a promising approach for learning control policies for robot tasks. However, specifying complex tasks (e.g., with multiple objectives and safety constraints) can be challenging, since the user must design a reward function that encodes the entire task. Furthermore, the user…