AdoptODE: Fusion of data and expert knowledge for modeling dynamical systemsBuilding a representative model of a complex system remains a highly challenging problem. While by now there is basic understanding of most physical domains, model design is often hindered by lack of…Leon Lettermann, Alejandro Jurado, Timo Betz et al.·May 16, 2023SaveLearn
Inferring Local Structure from Pairwise CorrelationsTo construct models of large, multivariate complex systems, such as those in biology, one needs to constrain which variables are allowed to interact. This can be viewed as detecting "local"…Mahajabin Rahman, Ilya Nemenman·May 7, 2023SaveLearn
Analysing the Grain size and asymmetry of the particle distribution using auto-correlation techniqueExtracting the grain size from the microscopic images is a rigorous task involving much human expertise and manual effort. While calculating the grain size, we will be utilizing a finite number of…Vanitha Patnala, Salla Gangi Reddy, Shashi Prabhakar et al.·May 3, 2023SaveLearn
Inferential Moments of Uncertain Multivariable SystemsThis article expands the framework of Bayesian inference and provides direct probabilistic methods for approaching inference tasks that are typically handled with information theory. We treat…Kevin Vanslette·May 3, 2023SaveLearn
Recent advances in the SISSO method and their implementation in the SISSO++ codeAccurate and explainable artificial-intelligence (AI) models are promising tools for the acceleration of the discovery of new materials, ore new applications for existing materials. Recently,…Thomas A. R. Purcell, Matthias Scheffler, Luca M. Ghiringhelli·May 2, 2023SaveLearn
A universal model for the Lorenz curve with novel applications for datasets containing zeros and/or exhibiting extreme inequalityGiven that the existing parametric functional forms for the Lorenz curve do not fit all possible size distributions, a universal parametric functional form is introduced. By using the empirical data…Thitithep Sitthiyot, Kanyarat Holasut·Apr 27, 2023SaveLearn
Higher-order asymptotic corrections and their application to the Gamma Variance ModelWe present improved methods for calculating confidence intervals and p-values in situations where standard asymptotic approaches fail due to small sample sizes. We apply these techniques to a…Enzo Canonero, Alessandra Rosalba Brazzale, Glen Cowan·Apr 20, 2023SaveLearn
Introducing the Single-Atom Real-Space Global Minimization Method for Solving Small Structures in Single Crystal X-ray CrystallographyA new method for solving small X-ray structures with up to couple of hundreds of atoms in the unit cell has been developed. The method works by locating atoms one-by-one via global minimization of a…Xiaodong Zhang·Apr 19, 2023SaveLearn
Multifidelity uncertainty quantification with models based on dissimilar parametersMultifidelity uncertainty quantification (MF UQ) sampling approaches have been shown to significantly reduce the variance of statistical estimators while preserving the bias of the highest-fidelity…Xiaoshu Zeng, Gianluca Geraci, Michael S. Eldred et al.·Apr 17, 2023SaveLearn
Apparent universality of 1/f spectra as an artifact of finite-size effectsPower spectral density scaling with frequency f as 1/fβ and β ≈ 1 is widely found in natural and socio-economic systems. Consequently, it has been suggested that such…M. A. Korzeniowska, A. Theodorsen, M. Rypdal et al.·Apr 17, 2023SaveLearn
Using various machine learning algorithms for quantitative analysis in Laser induced breakdown spectroscopyLaser induced breakdown spectroscopy technique is employed for quantitative analysis of aluminum samples by different classical machine learning approaches. A Q-switch Nd:YAG laser at fundamental…Mohsen Rezaei, Fatemeh Rezaei, Parvin Karimi·Apr 16, 2023SaveLearn
Dynamics-Based Intrinsic Signal Model for High-Dimensional, Small-Sample DataSignal extraction is difficult when the number of variables N is much larger than the number of observations M. We address this problem under the working hypothesis that an empirical dataset…Yoh-ichi Mototake, Y-h. Taguchi·Apr 13, 2023SaveLearn
Unveiling Pseudo-Crucial Events in Noise-Induced Phase TransitionsNoise-induced phase transitions are common in various complex systems, from physics to biology. In this article, we investigate the emergence of crucial events in noise-induced phase transition…Jacob D. Baxley, David R. Lambert, Mauro Bologna et al.·Apr 12, 2023SaveLearn
De-novo Identification of Small Molecules from Their GC-EI-MS SpectraIdentification of experimentally acquired mass spectra of unknown compounds presents a~particular challenge because reliable spectral databases do not cover the potential chemical space with…Adam Hájek, Michal Starý, Filip Jozefov et al.·Apr 4, 2023SaveLearn
Clustering and visualization tools to study high dimensional parameter spaces: B anomalies exampleWe describe the applications of clustering and visualization tools using the so-called neutral B anomalies as an example. Clustering permits parameter space partitioning into regions that can be…Ursula Laa, German Valencia·Mar 31, 2023SaveLearn
Progress towards an improved particle flow algorithm at CMS with machine learningThe particle-flow (PF) algorithm, which infers particles based on tracks and calorimeter clusters, is of central importance to event reconstruction in the CMS experiment at the CERN LHC, and has been…Farouk Mokhtar, Joosep Pata, Javier Duarte et al.·Mar 30, 2023SaveLearn
Principal Geodesic Analysis applied to climate time seriesPrincipal Geodesic Analysis (PGA) is applied to a climate time series. First, we transform each multidimensional sequence into the path signature. Since the signature lives in a curved space, usual…Nozomi Sugiura·Mar 30, 2023SaveLearn
Module-based regularization improves Gaussian graphical models when observing noisy dataInferring relations from correlational data allows researchers across the sciences to uncover complex connections between variables for insights into the underlying mechanisms. The researchers often…Magnus Neuman, Joaquín Calatayud, Viktor Tasselius et al.·Mar 29, 2023SaveLearn
Enhancing Graph Topology and Clustering Quality: A Modularity-Guided ApproachCurrent modularity-based community detection algorithms attempt to find cluster memberships that maximize modularity within a fixed graph topology. Diverging from this conventional approach, our work…Yongyu Wang, Shiqi Hao, Xiaoyang Wang et al.·Mar 28, 2023SaveLearn
Multivariate Joint Recurrence Quantification Analysis: detecting coupling between time series of different dimensionalitiesOne challenge with the analysis of complex systems and the interaction between such systems is that they are composed of different numbers of components, or simply the fact that a different number of…Sebastian Wallot, Dan Mønster·Mar 28, 2023SaveLearn
Hyperparameter optimization, quantum-assisted model performance prediction, and benchmarking of AI-based High Energy Physics workloads using HPCTraining and Hyperparameter Optimization (HPO) of deep learning-based AI models are often compute resource intensive and calls for the use of large-scale distributed resources as well as scalable and…Eric Wulff, Maria Girone, David Southwick et al.·Mar 27, 2023SaveLearn
Multiscale Relevance of Natural ImagesWe use an agnostic information-theoretic approach to investigate the statistical properties of natural images. We introduce the Multiscale Relevance (MSR) measure to assess the robustness of images…Samy Lakhal, Alexandre Darmon, Iacopo Mastromatteo et al.·Mar 22, 2023SaveLearn
Limit setting using spacings in the presence of unknown backgroundsFinding upper limits on the rate of events from a proposed process in the presence of unknown backgrounds is an often encountered problem in the search for rare processes. Methods based on unusually…Lolian Shtembari, Allen Caldwell·Mar 16, 2023SaveLearn
Suppression of accidental backgrounds with deep neural networks in the PandaX-II experimentThe PandaX dark matter detection project searches for dark matter particles using the technology of dual phase xenon time projection chamber. The low expected rate of the signal events makes the…Nasir Shaheed, Xun Chen, Meng Wang·Mar 9, 2023SaveLearn
Continuous-Time Modeling and Analysis of Particle Beam MetrologyParticle beam microscopy (PBM) performs nanoscale imaging by pixelwise capture of scalar values representing noisy measurements of the response from secondary electrons (SEs) integrated over a dwell…Akshay Agarwal, Minxu Peng, Vivek K. Goyal·Mar 7, 2023SaveLearn