Search Results for author: Gregory J. Stein

Found 4 papers, 3 papers with code

Improving Reliable Navigation under Uncertainty via Predictions Informed by Non-Local Information

1 code implementation26 Jul 2023 Raihan Islam Arnob, Gregory J. Stein

We improve reliable, long-horizon, goal-directed navigation in partially-mapped environments by using non-locally available information to predict the goodness of temporally-extended actions that enter unseen space.

Navigate

Anticipatory Planning: Improving Long-Lived Planning by Estimating Expected Cost of Future Tasks

no code implementations8 May 2023 Roshan Dhakal, Md Ridwan Hossain Talukder, Gregory J. Stein

Additionally, if given an opportunity to prepare the environment in advance (a special case of anticipatory planning), our planner improves overall cost by 11%.

Comparison of Model-Free and Model-Based Learning-Informed Planning for PointGoal Navigation

1 code implementation17 Dec 2022 Yimeng Li, Arnab Debnath, Gregory J. Stein, Jana Kosecka

In this work, we compare the state-of-the-art Deep Reinforcement Learning based approaches with Partially Observable Markov Decision Process (POMDP) formulation of the point goal navigation problem.

PointGoal Navigation Problem Decomposition +3

Generating High-Quality Explanations for Navigation in Partially-Revealed Environments

1 code implementation NeurIPS 2021 Gregory J. Stein

We present an approach for generating natural language explanations of high-level behavior of autonomous agents navigating in partially-revealed environments.

counterfactual Explanation Generation +1

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