Search Results for author: Katia Matcheva

Found 15 papers, 2 papers with code

Exploring the Truth and Beauty of Theory Landscapes with Machine Learning

no code implementations21 Jan 2024 Konstantin T. Matchev, Katia Matcheva, Pierre Ramond, Sarunas Verner

Theoretical physicists describe nature by i) building a theory model and ii) determining the model parameters.

A Comparison Between Invariant and Equivariant Classical and Quantum Graph Neural Networks

1 code implementation30 Nov 2023 Roy T. Forestano, Marçal Comajoan Cara, Gopal Ramesh Dahale, Zhongtian Dong, Sergei Gleyzer, Daniel Justice, Kyoungchul Kong, Tom Magorsch, Konstantin T. Matchev, Katia Matcheva, Eyup B. Unlu

In this paper, we perform a fair and comprehensive comparison between classical graph neural networks (GNNs) and equivariant graph neural networks (EGNNs) and their quantum counterparts: quantum graph neural networks (QGNNs) and equivariant quantum graph neural networks (EQGNN).

Binary Classification Jet Tagging

Seeking Truth and Beauty in Flavor Physics with Machine Learning

no code implementations31 Oct 2023 Konstantin T. Matchev, Katia Matcheva, Pierre Ramond, Sarunas Verner

The discovery process of building new theoretical physics models involves the dual aspect of both fitting to the existing experimental data and satisfying abstract theorists' criteria like beauty, naturalness, etc.

Reproducing Bayesian Posterior Distributions for Exoplanet Atmospheric Parameter Retrievals with a Machine Learning Surrogate Model

no code implementations16 Oct 2023 Eyup B. Unlu, Roy T. Forestano, Konstantin T. Matchev, Katia Matcheva

We describe a machine-learning-based surrogate model for reproducing the Bayesian posterior distributions for exoplanet atmospheric parameters derived from transmission spectra of transiting planets with typical retrieval software such as TauRex.

Retrieval

Identifying the Group-Theoretic Structure of Machine-Learned Symmetries

no code implementations14 Sep 2023 Roy T. Forestano, Konstantin T. Matchev, Katia Matcheva, Alexander Roman, Eyup B. Unlu, Sarunas Verner

We design loss functions which probe the subalgebra structure either during the deep learning stage of symmetry discovery or in a subsequent post-processing stage.

Searching for Novel Chemistry in Exoplanetary Atmospheres using Machine Learning for Anomaly Detection

no code implementations15 Aug 2023 Roy T. Forestano, Konstantin T. Matchev, Katia Matcheva, Eyup B. Unlu

The next generation of telescopes will yield a substantial increase in the availability of high-resolution spectroscopic data for thousands of exoplanets.

Anomaly Detection Novelty Detection

Accelerated Discovery of Machine-Learned Symmetries: Deriving the Exceptional Lie Groups G2, F4 and E6

no code implementations10 Jul 2023 Roy T. Forestano, Konstantin T. Matchev, Katia Matcheva, Alexander Roman, Eyup B. Unlu, Sarunas Verner

Recent work has applied supervised deep learning to derive continuous symmetry transformations that preserve the data labels and to obtain the corresponding algebras of symmetry generators.

Discovering Sparse Representations of Lie Groups with Machine Learning

no code implementations10 Feb 2023 Roy T. Forestano, Konstantin T. Matchev, Katia Matcheva, Alexander Roman, Eyup B. Unlu, Sarunas Verner

Recent work has used deep learning to derive symmetry transformations, which preserve conserved quantities, and to obtain the corresponding algebras of generators.

Oracle-Preserving Latent Flows

no code implementations2 Feb 2023 Alexander Roman, Roy T. Forestano, Konstantin T. Matchev, Katia Matcheva, Eyup B. Unlu

We develop a deep learning methodology for the simultaneous discovery of multiple nontrivial continuous symmetries across an entire labelled dataset.

Deep Learning Symmetries and Their Lie Groups, Algebras, and Subalgebras from First Principles

no code implementations13 Jan 2023 Roy T. Forestano, Konstantin T. Matchev, Katia Matcheva, Alexander Roman, Eyup Unlu, Sarunas Verner

We design a deep-learning algorithm for the discovery and identification of the continuous group of symmetries present in a labeled dataset.

Is the Machine Smarter than the Theorist: Deriving Formulas for Particle Kinematics with Symbolic Regression

no code implementations15 Nov 2022 Zhongtian Dong, Kyoungchul Kong, Konstantin T. Matchev, Katia Matcheva

We demonstrate the use of symbolic regression in deriving analytical formulas, which are needed at various stages of a typical experimental analysis in collider phenomenology.

regression Symbolic Regression

Analytical Modelling of Exoplanet Transit Specroscopy with Dimensional Analysis and Symbolic Regression

no code implementations22 Dec 2021 Konstantin T. Matchev, Katia Matcheva, Alexander Roman

The physical characteristics and atmospheric chemical composition of newly discovered exoplanets are often inferred from their transit spectra which are obtained from complex numerical models of radiative transfer.

Physical Intuition regression +1

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