Predicting Agent Behavior by Estimating Motion Planners
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Authors
Poston, Jamie Eileen
Issue Date
2020
Type
Thesis
Language
Keywords
autonomous , machine learning , neural network , path planner , path prediction , robotics
Alternative Title
Abstract
To navigate the world safely, autonomous agents must predict the future actions of the other agents in the world. We propose a method to estimate the future positions of other agents by using a sample-based planner that samples from a distribution trained on observed vehicle trajectories. The sample-based planner used is Rapidly-exploring Random Tree, and trained distribution is the combination of two networks: a Long Short-Term Memory network and a Mixture Density Network. We compared this trained model to several baselines. The proposed method performs better than the curve fitting and Long Short-Term Memory baselines, but worse than the other two baselines. The methods with a path planner perform better than the baselines without, which may mean that using a path planner to complete the problem of vehicle trajectory prediction may prove beneficial in future works.