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Related papers: BasisGen: automatic generation of operator bases

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We present a unified approach to (bi-)orthogonal basis sets for gravitating systems. Central to our discussion is the notion of mutual gravitational energy, which gives rise to the self-energy inner product on mass densities. We consider a…

Astrophysics of Galaxies · Physics 2023-04-12 E. J. Lilley , G. van de Ven

We present an algorithm using transformation groups and their irreducible representations to generate an orthogonal basis for a signal in the vector space of the signal. It is shown that multiresolution analysis can be done with amplitudes…

Computer Vision and Pattern Recognition · Computer Science 2012-01-17 B. Rajathilagam , Murali Rangarajan , K. P. Soman

Behavioral models are incredibly useful for understanding and validating software. However, the automatic extraction of such models from actual industrial code remains a largely unsolved problem with current solutions often not scaling well…

Software Engineering · Computer Science 2024-11-20 P. H. M. van Spaendonck

The Barnes-Hut and Fast Multipole Methods are widely utilised methods applied in order to reduce the computational cost of evaluating long range forces in $N$-body simulations. Despite this, applying existing libraries to simple problems…

Computational Physics · Physics 2020-05-27 Ryan Alexander Pepper , Hans Fangohr

Synthetic data is essential for assessing clustering techniques, complementing and extending real data, and allowing for more complete coverage of a given problem's space. In turn, synthetic data generators have the potential of creating…

Machine Learning · Computer Science 2024-03-06 Nuno Fachada , Diogo de Andrade

Manipulation policies deployed in uncontrolled real-world scenarios are faced with great in-category geometric diversity of everyday objects. In order to function robustly under such variations, policies need to work in a category-level…

Robotics · Computer Science 2026-04-20 Yirui Wang , Xiuwei Xu , Angyuan Ma , Bingyao Yu , Jie Zhou , Jiwen Lu

Scientific computing requires handling large linear models, which are often composed of structured matrices. With increasing model size, dense representations quickly become infeasible to compute or store. Matrix-free implementations are…

Mathematical Software · Computer Science 2021-11-30 Christoph Wilfried Wagner , Sebastian Semper , Jan Kirchhof

The typical problem in Data Science is creating a structure that encodes the occurrence frequency of unique elements in rows and relations between different rows of a data frame. We present the probability tree abstract data structure, an…

Generative Adversarial Networks (GANs) advance face synthesis through learning the underlying distribution of observed data. Despite the high-quality generated faces, some minority groups can be rarely generated from the trained models due…

Computer Vision and Pattern Recognition · Computer Science 2021-03-30 Shuhan Tan , Yujun Shen , Bolei Zhou

Large-scale and diverse datasets are vital for training robust robotic manipulation policies, yet existing data collection methods struggle to balance scale, diversity, and quality. Simulation offers scalability but suffers from sim-to-real…

Bayesian networks (BNs) are graphical \emph{first-order} probabilistic models that allow for a compact representation of large probability distributions, and for efficient inference, both exact and approximate. We introduce a…

Logic in Computer Science · Computer Science 2023-12-12 Claudia Faggian , Daniele Pautasso , Gabriele Vanoni

Operator networks are designed to approximate nonlinear operators, which provide mappings between infinite-dimensional spaces such as function spaces. These networks are playing an increasingly important role in machine learning, with their…

Machine Learning · Computer Science 2025-04-11 Jason Kurz , Sean Oughton , Shitao Liu

In the era of deep learning, data is the critical determining factor in the performance of neural network models. Generating large datasets suffers from various difficulties such as scalability, cost efficiency and photorealism. To avoid…

Computer Vision and Pattern Recognition · Computer Science 2022-10-04 Chahat Deep Singh , Riya Kumari , Cornelia Fermüller , Nitin J. Sanket , Yiannis Aloimonos

We present MADLens a python package for producing non-Gaussian lensing convergence maps at arbitrary source redshifts with unprecedented precision. MADLens is designed to achieve high accuracy while keeping computational costs as low as…

Cosmology and Nongalactic Astrophysics · Physics 2020-12-18 Vanessa Böhm , Yu Feng , Max E. Lee , Biwei Dai

MatchingTools is a Python library for doing symbolic calculations in effective field theory. It provides the tools to construct general models by defining their field content and their interaction Lagrangian. Once a model is given, the…

High Energy Physics - Phenomenology · Physics 2018-08-09 Juan C. Criado

Operator learning trains a neural network to map functions to functions. An ideal operator learning framework should be mesh-free in the sense that the training does not require a particular choice of discretization for the input functions,…

Numerical Analysis · Mathematics 2022-12-15 Zecheng Zhang , Wing Tat Leung , Hayden Schaeffer

In this paper we present a short overview of the new Wolfram Mathematica package intended for elementary "in-basis" tensor and differential-geometric calculations. In contrast to alternatives our package is designed to be easy-to-use,…

Nuclear Theory · Physics 2021-11-15 D. O. Rybalka

We introduce a systematic framework for counting and finding independent operators in effective field theories, taking into account the redundancies associated with use of the classical equations of motion and integration by parts. By…

High Energy Physics - Theory · Physics 2016-01-20 Brian Henning , Xiaochuan Lu , Tom Melia , Hitoshi Murayama

Invariant theory provides more efficient tools, such as Molien generating functions and integrity bases, than basic group theory, that relies on projector techniques for the construction of symmetry--adapted polynomials in the symmetry…

Mathematical Physics · Physics 2014-07-15 Patrick Cassam-Chenaï , Guillaume Dhont , Frédéric Patras

Simulation plays a key role in scaling robot learning and validating policies, but constructing simulations remains a labor-intensive process. This paper introduces ReGen, a generative simulation framework that automates simulation design…