Search Results for author: Shreyas Kousik

Found 11 papers, 9 papers with code

Mapping High-level Semantic Regions in Indoor Environments without Object Recognition

no code implementations11 Mar 2024 Roberto Bigazzi, Lorenzo Baraldi, Shreyas Kousik, Rita Cucchiara, Marco Pavone

Robots require a semantic understanding of their surroundings to operate in an efficient and explainable way in human environments.

Graph Generation Language Modelling +3

Safe Reinforcement Learning Using Black-Box Reachability Analysis

1 code implementation15 Apr 2022 Mahmoud Selim, Amr Alanwar, Shreyas Kousik, Grace Gao, Marco Pavone, Karl H. Johansson

Reinforcement learning (RL) is capable of sophisticated motion planning and control for robots in uncertain environments.

Motion Planning reinforcement-learning +2

Ellipsotopes: Combining Ellipsoids and Zonotopes for Reachability Analysis and Fault Detection

1 code implementation3 Aug 2021 Shreyas Kousik, Adam Dai, Grace Gao

This paper introduces ellipsotopes, a set representation that is closed under affine maps, Minkowski sums, and intersections.

Fault Detection

Constrained Feedforward Neural Network Training via Reachability Analysis

1 code implementation16 Jul 2021 Long Kiu Chung, Adam Dai, Derek Knowles, Shreyas Kousik, Grace X. Gao

This is because it remains an open challenge to train a neural network to obey safety constraints.

Safe, Optimal, Real-time Trajectory Planning with a Parallel Constrained Bernstein Algorithm

1 code implementation3 Mar 2020 Shreyas Kousik, Bohao Zhang, Pengcheng Zhao, Ram Vasudevan

To move through the world, mobile robots typically use a receding-horizon strategy, wherein they execute an old plan while computing a new plan to incorporate new sensor information.

Optimization and Control Robotics

Reachable Sets for Safe, Real-Time Manipulator Trajectory Design

1 code implementation5 Feb 2020 Patrick Holmes, Shreyas Kousik, Bohao Zhang, Daphna Raz, Corina Barbalata, Matthew Johnson-Roberson, Ram Vasudevan

At runtime, in each receding-horizon planning iteration, ARMTD constructs a reachable set of the entire arm in workspace and intersects it with obstacles to generate sub-differentiable and provably-conservative collision-avoidance constraints on the trajectory parameters.

Robotics

Technical Report: Safe, Aggressive Quadrotor Flight via Reachability-based Trajectory Design

2 code implementations11 Apr 2019 Shreyas Kousik, Patrick Holmes, Ramanarayan Vasudevan

Quadrotors can provide services such as infrastructure inspection and search-and-rescue, which require operating autonomously in cluttered environments.

Robotics Systems and Control

Guaranteed Safe Reachability-based Trajectory Design for a High-Fidelity Model of an Autonomous Passenger Vehicle

1 code implementation5 Feb 2019 Sean Vaskov, Utkarsh Sharma, Shreyas Kousik, Matthew Johnson-Roberson, Ramanarayan Vasudevan

Trajectory planning is challenging for autonomous cars since they operate in unpredictable environments with limited sensor horizons.

Systems and Control

Bridging the Gap Between Safety and Real-Time Performance in Receding-Horizon Trajectory Design for Mobile Robots

1 code implementation18 Sep 2018 Shreyas Kousik, Sean Vaskov, Fan Bu, Matthew Johnson-Roberson, Ram Vasudevan

At runtime, the FRS is used to map obstacles to the space of parameterized trajectories, which allows RTD to select a safe trajectory at every planning iteration.

Robotics Systems and Control

Safe Trajectory Synthesis for Autonomous Driving in Unforeseen Environments

2 code implementations28 Apr 2017 Shreyas Kousik, Sean Vaskov, Matthew Johnson-Roberson, Ramanarayan Vasudevan

Path planning for autonomous vehicles in arbitrary environments requires a guarantee of safety, but this can be impractical to ensure in real-time when the vehicle is described with a high-fidelity model.

Systems and Control Robotics

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