Ajinkya Jain

I obtained my Ph.D. in robotics from the University of Texas at Austin under the guidance of Prof. Scott Niekum and Prof. Ashish Deshpande . My research aims at combining AI and Machine Learning with robot motion planning, dynamics, and controls for performing dexterous robot manipulation. During my Ph.D., I worked on to develop algorithms for learning object interaction models from images and human demonstrations and using them to perform robot manipulation tasks robustly even under uncertainty. Before joining UT Austin, I obtained my Bachelors and Masters in Mechanical Engineering from IIT Kanpur. Currently, I am working as a roboticist at Intrinsic.ai .

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I'm interested in robot learning, dexterous robot manipulation, motion planning under uncertainty, model learning for planning and control, reinforcement learning, and optimal control.

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Distributional Depth-Based Estimation of Object Articulation Models

Ajinkya Jain, Stephen Giguere, Rudolf Lioutikov, Scott Niekum
5th Conference on Robot Learning (CoRL), 2021
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A novel method that efficiently learns distributions over articulation model parameters directly from depth images without the need to know articulation model categories a priori

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ScrewNet: Category-Independent Articulation Model Estimation From Depth Images Using Screw Theory

Ajinkya Jain, Rudolf Lioutikov, Caleb Chuck, Scott Niekum
IEEE International Conference on Robotics and Automation (ICRA), 2021
paper / video / webpage / code / poster /

A novel method for estimating articulation models for objects directly from raw depth images without knowing their articulation type a priori using screw theory

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Learning Hybrid Object Kinematics for Efficient Hierarchical Planning Under Uncertainty

Ajinkya Jain, Scott Niekum
IEEE/ RSJ International Conference on Intelligent Robots and Systems (IROS), 2020
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A method for learning planning-compatible hybrid kinematics models for articulated objectsfrom human demonstrations

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Efficient Hierarchical Robot Motion Planning Under Uncertainty and Hybrid Dynamics

Ajinkya Jain, Scott Niekum
Conference on Robot Learning (CoRL), 2018
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A POMDP-based Motion planner that generates efficient motion plans leveraging object-object interactions to perform manipulation tasks under uncertainty with high success rates

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Belief Space Planning under Approximate Hybrid Dynamics

Ajinkya Jain, Scott Niekum
Workshop on POMDPs in Robotics, Robotics: Science and Systems (RSS), 2017
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Extending Belief-space LQR to hybrid systems for robot motion planning under uncertainty

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A piezoelectric model based multi-objective optimization of robot gripper design

Rituparna Datta, Ajinkya Jain, Bishakh Bhattacharya
Structural and Multidisciplinary Optimization, Springer, 2015
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Multi-objective design optimization of a piezoelectric actuator driven gripper

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Unified Minimalistic Modelling of Piezoelectric Stack Actuators for Engineering Applications

Ajinkya Jain,
Advances in Intelligent Systems and Computing, Springer, 2014
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A simple, computationally-cheap, yet effective model for piezoelectric stack actuators as a replacement of black-box models used in engineering design optimization problems.

Design and source code from Jon Barron's website. Jekyll version from Leonid Keselman's website