Learning partially contracting dynamical systems from demonstrations

H Ravichandar, I Salehi, A Dani - Conference on Robot …, 2017 - proceedings.mlr.press
An algorithm for learning the dynamics of point-to-point motions from demonstrations using
an autonomous nonlinear dynamical system, named contracting dynamical system …

Model-based reinforcement learning with parametrized physical models and optimism-driven exploration

C Xie, S Patil, T Moldovan, S Levine… - … conference on robotics …, 2016 - ieeexplore.ieee.org
In this paper, we present a robotic model-based reinforcement learning method that
combines ideas from model identification and model predictive control. We use a feature …

Multicontroller positioning strategy for a pneumatic servo system via pressure feedback

L Zhao, Y Xia, Y Yang, Z Liu - IEEE Transactions on Industrial …, 2017 - ieeexplore.ieee.org
A backstepping-based controller is designed to improve positioning speed of a pneumatic
servo system by pressure feedback. A least-square method is used to identify parameters for …

Learning position and orientation dynamics from demonstrations via contraction analysis

HC Ravichandar, A Dani - Autonomous Robots, 2019 - Springer
This paper presents a unified framework of model-learning algorithms, called contracting
dynamical system primitives (CDSP), that can be used to learn pose (ie, position and …

Learning contracting nonlinear dynamics from human demonstration for robot motion planning

H Ravichandar, A Dani - Dynamic Systems …, 2015 - asmedigitalcollection.asme.org
In this paper, we present an algorithm to learn the dynamics of human arm motion from the
data collected from human actions. Learning the motion plans from human demonstrations …

Human intention inference through interacting multiple model filtering

H chaandar Ravichandar, A Dani - 2015 IEEE International …, 2015 - ieeexplore.ieee.org
We present an algorithm to learn human arm motion from demonstrations and infer the goal
location (intention) of human reaching actions. To capture the complexity of human arm …

Human intention inference and motion modeling using approximate em with online learning

HC Ravichandar, A Dani - 2015 IEEE/RSJ International …, 2015 - ieeexplore.ieee.org
In this paper, we present an algorithm to infer the intent of a human operator's arm
movements based on the observations from a Microsoft Kinect sensor. Intentions are …

Active sampling based safe identification of dynamical systems using extreme learning machines and barrier certificates

I Salehi, G Yao, AP Dani - 2019 International Conference on …, 2019 - ieeexplore.ieee.org
Learning the dynamical system (DS) model from data that preserves dynamical system
properties is an important problem in many robot learning applications. Typically, the joint …

Learning first principles systems knowledge from data: Stability and safety with applications to learning from demonstration

A Dani, I Salehi - Artificial Intelligence in Manufacturing, 2024 - Elsevier
The chapter presents two methods of constrained learning of dynamical system models from
data with applications to learning from demonstration (LfD) or imitation learning in the …

Learning periodic motions from human demonstrations using transverse contraction analysis

H chaandar Ravichandar… - 2016 American …, 2016 - ieeexplore.ieee.org
In this paper, an algorithm called transverse contracting dynamic system primitive (CDSP) to
learn the dynamics of periodic motions from demonstrations is presented. Learning motion …