Neuro-Symbolic Program Search for Autonomous Driving Decision Module Design
Jiankai Sun,  Hao Sun,  Tian Han, Bolei Zhou
The Chinese Univsersity of Hong Kong, Stevens Insititute of Technology
Overview
As a promising topic in cognitive robotics, neuro-symbolic modeling integrates symbolic reasoning and neural representation altogether. However, previous neuro-symbolic models usually wire their structures and the connections manually, making the underlying parameters sub-optimal. In this work, we propose the Neuro-Symbolic Program Search (NSPS) to improve the autonomous driving system design. NSPS is a novel automated search method that synthesizes the Neuro-Symbolic Programs. It can produce robust and expressive Neuro-Symbolic Programs and automatically tune the hyper-parameters. We validate NSPS in the CARLA driving simulation environment. The resulting Neuro-Symbolic Decision Programs successfully handle multiple traffic scenarios. Compared with previous neural-network-based driving and rule-based methods, our neuro-symbolic driving pipeline achieves more stable and safer behaviors in complex driving scenarios while maintaining an interpretable symbolic decision-making process.
Framework
BibTeX
@InProceedings{Sun_2020_corl,
author={Sun, Jiankai and Sun, Hao and Han, Tian and Zhou, Bolei},
title={Neuro-Symbolic Program Search for Autonomous Driving Decision Module Design},
booktitle = {Proceedings of the Conference on Robot Learning (CoRL) 2020}
}
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