Search Results for author: Viacheslav Borovitskiy

Found 17 papers, 13 papers with code

The GeometricKernels Package: Heat and Matérn Kernels for Geometric Learning on Manifolds, Meshes, and Graphs

2 code implementations10 Jul 2024 Peter Mostowsky, Vincent Dutordoir, Iskander Azangulov, Noémie Jaquier, Michael John Hutchinson, Aditya Ravuri, Leonel Rozo, Alexander Terenin, Viacheslav Borovitskiy

To address this difficulty, we present GeometricKernels, a software package which implements the geometric analogs of classical Euclidean squared exponential - also known as heat - and Mat\'ern kernels, which are widely-used in settings where uncertainty is of key interest.

Gaussian Processes Uncertainty Quantification

Implicit Manifold Gaussian Process Regression

1 code implementation NeurIPS 2023 Bernardo Fichera, Viacheslav Borovitskiy, Andreas Krause, Aude Billard

Gaussian process regression is widely used because of its ability to provide well-calibrated uncertainty estimates and handle small or sparse datasets.

regression

Hodge-Compositional Edge Gaussian Processes

1 code implementation30 Oct 2023 Maosheng Yang, Viacheslav Borovitskiy, Elvin Isufi

We propose principled Gaussian processes (GPs) for modeling functions defined over the edge set of a simplicial 2-complex, a structure similar to a graph in which edges may form triangular faces.

Gaussian Processes Hyperparameter Optimization

Intrinsic Gaussian Vector Fields on Manifolds

1 code implementation28 Oct 2023 Daniel Robert-Nicoud, Andreas Krause, Viacheslav Borovitskiy

Various applications ranging from robotics to climate science require modeling signals on non-Euclidean domains, such as the sphere.

Uncertainty Quantification

Stationary Kernels and Gaussian Processes on Lie Groups and their Homogeneous Spaces II: non-compact symmetric spaces

1 code implementation30 Jan 2023 Iskander Azangulov, Andrei Smolensky, Alexander Terenin, Viacheslav Borovitskiy

The invariance of a Gaussian process' covariance to such symmetries gives rise to the most natural generalization of the concept of stationarity to such spaces.

Gaussian Processes

On power sum kernels on symmetric groups

no code implementations10 Nov 2022 Iskander Azangulov, Viacheslav Borovitskiy, Andrei Smolensky

In this note, we introduce a family of "power sum" kernels and the corresponding Gaussian processes on symmetric groups $\mathrm{S}_n$.

Gaussian Processes

Isotropic Gaussian Processes on Finite Spaces of Graphs

3 code implementations3 Nov 2022 Viacheslav Borovitskiy, Mohammad Reza Karimi, Vignesh Ram Somnath, Andreas Krause

We propose a principled way to define Gaussian process priors on various sets of unweighted graphs: directed or undirected, with or without loops.

Gaussian Processes Molecular Property Prediction +1

Bringing motion taxonomies to continuous domains via GPLVM on hyperbolic manifolds

no code implementations4 Oct 2022 Noémie Jaquier, Leonel Rozo, Miguel González-Duque, Viacheslav Borovitskiy, Tamim Asfour

This may be attributed to the lack of computational models that fill the gap between the discrete hierarchical structure of the taxonomy and the high-dimensional heterogeneous data associated to its categories.

Stationary Kernels and Gaussian Processes on Lie Groups and their Homogeneous Spaces I: the compact case

1 code implementation31 Aug 2022 Iskander Azangulov, Andrei Smolensky, Alexander Terenin, Viacheslav Borovitskiy

The invariance of a Gaussian process' covariance to such symmetries gives rise to the most natural generalization of the concept of stationarity to such spaces.

Bayesian Inference Gaussian Processes

Geometry-aware Bayesian Optimization in Robotics using Riemannian Matérn Kernels

1 code implementation2 Nov 2021 Noémie Jaquier, Viacheslav Borovitskiy, Andrei Smolensky, Alexander Terenin, Tamim Asfour, Leonel Rozo

Bayesian optimization is a data-efficient technique which can be used for control parameter tuning, parametric policy adaptation, and structure design in robotics.

Bayesian Optimization Motion Planning

Vector-valued Gaussian Processes on Riemannian Manifolds via Gauge Independent Projected Kernels

no code implementations NeurIPS 2021 Michael Hutchinson, Alexander Terenin, Viacheslav Borovitskiy, So Takao, Yee Whye Teh, Marc Peter Deisenroth

Gaussian processes are machine learning models capable of learning unknown functions in a way that represents uncertainty, thereby facilitating construction of optimal decision-making systems.

BIG-bench Machine Learning Decision Making +2

Pathwise Conditioning of Gaussian Processes

2 code implementations8 Nov 2020 James T. Wilson, Viacheslav Borovitskiy, Alexander Terenin, Peter Mostowsky, Marc Peter Deisenroth

As Gaussian processes are used to answer increasingly complex questions, analytic solutions become scarcer and scarcer.

Gaussian Processes

Matérn Gaussian Processes on Graphs

no code implementations29 Oct 2020 Viacheslav Borovitskiy, Iskander Azangulov, Alexander Terenin, Peter Mostowsky, Marc Peter Deisenroth, Nicolas Durrande

Gaussian processes are a versatile framework for learning unknown functions in a manner that permits one to utilize prior information about their properties.

Gaussian Processes

Matérn Gaussian processes on Riemannian manifolds

1 code implementation NeurIPS 2020 Viacheslav Borovitskiy, Alexander Terenin, Peter Mostowsky, Marc Peter Deisenroth

Gaussian processes are an effective model class for learning unknown functions, particularly in settings where accurately representing predictive uncertainty is of key importance.

Gaussian Processes

Efficiently Sampling Functions from Gaussian Process Posteriors

5 code implementations ICML 2020 James T. Wilson, Viacheslav Borovitskiy, Alexander Terenin, Peter Mostowsky, Marc Peter Deisenroth

Gaussian processes are the gold standard for many real-world modeling problems, especially in cases where a model's success hinges upon its ability to faithfully represent predictive uncertainty.

Gaussian Processes

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