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kwonyos committed Sep 16, 2024
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# Front matter. This is where you specify a lot of page variables.
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title: "CROWS"
title: CROWS <figure><img src="assets/front_figure.png" alt="ICON"width="20"></figure>
date: 2024-09-16 09:00:00 -0400
description: >- # Supports markdown
Conformalized Reachable Sets for Obstacle Avoidance With Spheres
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To address this challenge, this paper proposes Conformalized Reachable Sets for Obstacle Avoidance With Spheres (CROWS), a neural network-based safety representation that can be efficiently integrated into a trajectory optimization algorithm. CROWS extends SPARROWS<sup>[1](https://roahmlab.github.io/sparrows/)</sup> by learning an overapproximation of the swept volume (i.e. reachable set) of a serial robot manipulator that is composed entirely of spheres. Prior to planning, a neural network is trained to approximate the sphere-based reachable set. Then, CROWS applies conformal prediction to compute a confidence bound that provides a probabilistic safety guarantee. Finally, CROWS uses the conformalized reachable set and its learned gradient to solve an optimization problem to generate probabilistically-safe trajectories online.


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# [Related Projects](#related-projects)

* [Safe Planning for Articulated Robots Using Reachability-based Obstacle Avoidance With Spheres](https://roahmlab.github.io/sparrows/)
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