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Semantic Predictive Control for Explainable and Efficient Policy Learning | IEEE Conference Publication | IEEE Xplore

Semantic Predictive Control for Explainable and Efficient Policy Learning


Abstract:

Visual anticipation of ego and object motion over a short time horizons is a key feature of human-level performance in complex environments. We propose a driving policy l...Show More

Abstract:

Visual anticipation of ego and object motion over a short time horizons is a key feature of human-level performance in complex environments. We propose a driving policy learning framework that predicts feature representations of future visual inputs; our predictive model infers not only future events but also semantics, which provide a visual explanation of policy decisions. Our Semantic Predictive Control (SPC) framework predicts future semantic segmentation and events by aggregating multi-scale feature maps. A guidance model assists action selection and enables efficient sampling-based optimization. Experiments on multiple simulation environments show that networks which implement SPC can outperform existing model-based reinforcement learning algorithms in terms of data efficiency and total rewards while providing clear explanations for the policy's behavior.
Date of Conference: 20-24 May 2019
Date Added to IEEE Xplore: 12 August 2019
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Conference Location: Montreal, QC, Canada

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