Search Results for author: Maarten V. de Hoop

Found 12 papers, 5 papers with code

Implicit Neural Representations and the Algebra of Complex Wavelets

no code implementations1 Oct 2023 T. Mitchell Roddenberry, Vishwanath Saragadam, Maarten V. de Hoop, Richard G. Baraniuk

Implicit neural representations (INRs) have arisen as useful methods for representing signals on Euclidean domains.

High-Rate Phase Association with Travel Time Neural Fields

1 code implementation14 Jul 2023 Cheng Shi, Maarten V. de Hoop, Ivan Dokmanić

Existing techniques relying on coarsely approximated, fixed wave speed models fail in this unexplored dense regime where the complexity of unknown wave speed cannot be ignored.

An Approximation Theory for Metric Space-Valued Functions With A View Towards Deep Learning

no code implementations24 Apr 2023 Anastasis Kratsios, Chong Liu, Matti Lassas, Maarten V. de Hoop, Ivan Dokmanić

Motivated by the developing mathematics of deep learning, we build universal functions approximators of continuous maps between arbitrary Polish metric spaces $\mathcal{X}$ and $\mathcal{Y}$ using elementary functions between Euclidean spaces as building blocks.

Unearthing InSights into Mars: Unsupervised Source Separation with Limited Data

1 code implementation27 Jan 2023 Ali Siahkoohi, Rudy Morel, Maarten V. de Hoop, Erwan Allys, Grégory Sainton, Taichi Kawamura

Source separation involves the ill-posed problem of retrieving a set of source signals that have been observed through a mixing operator.

Stable reconstruction of simple Riemannian manifolds from unknown interior sources

no code implementations23 Feb 2021 Maarten V. de Hoop, Joonas Ilmavirta, Matti Lassas, Teemu Saksala

If we know all the arrival times at the boundary cylinder of the spacetime, can we reconstruct the space, a Riemannian manifold with boundary?

Differential Geometry Analysis of PDEs Metric Geometry

Deep learning architectures for nonlinear operator functions and nonlinear inverse problems

no code implementations23 Dec 2019 Maarten V. de Hoop, Matti Lassas, Christopher A. Wong

Lastly, we discuss how operator recurrent networks can be viewed as a deep learning analogue to deterministic algorithms such as boundary control for reconstructing the unknown wavespeed in the acoustic wave equation from boundary measurements.

Attention network forecasts time-to-failure in laboratory shear experiments

no code implementations12 Dec 2019 Hope Jasperson, David C. Bolton, Paul Johnson, Robert Guyer, Chris Marone, Maarten V. de Hoop

Our data were generated in a laboratory setting using a biaxial shearing device with granular fault gouge intended to mimic the conditions of tectonic faults.

Clustering General Classification +1

A non-perturbative approach to computing seismic normal modes in rotating planets

2 code implementations25 Jun 2019 Jia Shi, Ruipeng Li, Yuanzhe Xi, Yousef Saad, Maarten V. de Hoop

A Continuous Galerkin method-based approach is presented to compute the seismic normal modes of rotating planets.

Computational Physics Earth and Planetary Astrophysics Geophysics 86-08, 86-04, 85-04, 85-08, 85-10, 15A18, 65N25, 65N30

Random mesh projectors for inverse problems

1 code implementation ICLR 2019 Sidharth Gupta, Konik Kothari, Maarten V. de Hoop, Ivan Dokmanić

We show that in this case the common approach to directly learn the mapping from the measured data to the reconstruction becomes unstable.

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