Search Results for author: Robert K. Katzschmann

Found 9 papers, 2 papers with code

A Structured Matrix Method for Nonequispaced Neural Operators

1 code implementation31 May 2023 Levi Lingsch, Mike Michelis, Emmanuel de Bezenac, Sirani M. Perera, Robert K. Katzschmann, Siddhartha Mishra

The computational efficiency of many neural operators, widely used for learning solutions of PDEs, relies on the fast Fourier transform (FFT) for performing spectral computations.

Computational Efficiency

Autonomous Marker-less Rapid Aerial Grasping

no code implementations23 Nov 2022 Erik Bauer, Barnabas Gavin Cangan, Robert K. Katzschmann

In real-world experiments on a dynamically grasping aerial platform, we show that our system can replicate the performance of a motion capture system for object localization up to 94. 5 % of the baseline grasping success rate.

Object Object Localization +1

Meta-Learning via Classifier(-free) Diffusion Guidance

1 code implementation17 Oct 2022 Elvis Nava, Seijin Kobayashi, Yifei Yin, Robert K. Katzschmann, Benjamin F. Grewe

Our methods repurpose the popular generative image synthesis techniques of natural language guidance and diffusion models to generate neural network weights adapted for tasks.

Few-Shot Learning Image Generation +2

Fast Aquatic Swimmer Optimization with Differentiable Projective Dynamics and Neural Network Hydrodynamic Models

no code implementations30 Mar 2022 Elvis Nava, John Z. Zhang, Mike Y. Michelis, Tao Du, Pingchuan Ma, Benjamin F. Grewe, Wojciech Matusik, Robert K. Katzschmann

For the deformable solid simulation of the swimmer's body, we use state-of-the-art techniques from the field of computer graphics to speed up the finite-element method (FEM).

Computational Efficiency

Physics-constrained Unsupervised Learning of Partial Differential Equations using Meshes

no code implementations30 Mar 2022 Mike Y. Michelis, Robert K. Katzschmann

Enhancing neural networks with knowledge of physical equations has become an efficient way of solving various physics problems, from fluid flow to electromagnetism.

Sim2Real for Soft Robotic Fish via Differentiable Simulation

no code implementations30 Sep 2021 John Z. Zhang, Yu Zhang, Pingchuan Ma, Elvis Nava, Tao Du, Philip Arm, Wojciech Matusik, Robert K. Katzschmann

Accurate simulation of soft mechanisms under dynamic actuation is critical for the design of soft robots.

MORPH

DeSKO: Stability-Assured Robust Control with a Deep Stochastic Koopman Operator

no code implementations ICLR 2022 Minghao Han, Jacob Euler-Rolle, Robert K. Katzschmann

Koopman operator theory linearly describes nonlinear dynamical systems in high-dimensional functional space, this facilitates the application of linear control methods to nonlinear systems.

DiffAqua: A Differentiable Computational Design Pipeline for Soft Underwater Swimmers with Shape Interpolation

no code implementations2 Apr 2021 Pingchuan Ma, Tao Du, John Z. Zhang, Kui Wu, Andrew Spielberg, Robert K. Katzschmann, Wojciech Matusik

The computational design of soft underwater swimmers is challenging because of the high degrees of freedom in soft-body modeling.

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