中文
相关论文

相关论文: Compositional Periodic Spline Approximation for Ci…

200 篇论文

In microbiome and genomic studies, the regression of compositional data has been a crucial tool for identifying microbial taxa or genes that are associated with clinical phenotypes. To account for the variation in sequencing depth, the…

统计方法学 · 统计学 2021-03-11 Pixu Shi , Yuchen Zhou , Anru R. Zhang

Inspired by the concept of coherent frozen waves, this paper introduces one possible theoretical framework of its partially coherent version, a frozen spatial coherence, in which a desired two-point correlation structure of an optical field…

光学 · 物理学 2022-06-22 M. A. Pinto , P. A. Brandão

A new Bayesian method for the analysis of folded pulsar timing data is presented that allows for the simultaneous evaluation of evolution in the pulse profile in either frequency or time, along with the timing model and additional…

天体物理仪器与方法 · 物理学 2015-01-09 L Lentati , P. Alexander , M. P. Hobson

A growing number of generative statistical models do not permit the numerical evaluation of their likelihood functions. Approximate Bayesian computation (ABC) has become a popular approach to overcome this issue, in which one simulates…

统计方法学 · 统计学 2019-05-10 Espen Bernton , Pierre E. Jacob , Mathieu Gerber , Christian P. Robert

The spectral density function describes the second-order properties of a stationary stochastic process on $\mathbb{R}^d$. This paper considers the nonparametric estimation of the spectral density of a continuous-time stochastic process…

统计理论 · 数学 2023-02-07 Rafail Kartsioukas , Stilian Stoev , Tailen Hsing

Spatial connectivity is an important consideration when modelling infectious disease data across a geographical region. Connectivity can arise for many reasons, including shared characteristics between regions, and human or vector movement.…

统计方法学 · 统计学 2022-06-06 Sophie A Lee , Theodoros Economou , Rachel Lowe

We present a novel method for the classification and reconstruction of time dependent, high-dimensional data using sparse measurements, and apply it to the flow around a cylinder. Assuming the data lies near a low dimensional manifold…

动力系统 · 数学 2015-06-03 Ido Bright , Guang Lin , J. Nathan Kutz

We propose a model-based geostatistical approach to deal with regionalized compositions. We combine the additive-log-ratio transformation with multivariate geostatistical models whose covariance matrix is adapted to take into account the…

统计方法学 · 统计学 2017-04-25 Ana Beatriz Tozo Martins , Wagner Hugo Bonat , Paulo Justiniano Ribeiro Junior

Non-uniform B-spline dictionaries on a compact interval are discussed. For each given partition, dictionaries of B-spline functions for the corresponding spline space are constructed. It is asserted that, by dividing the given partition…

泛函分析 · 数学 2009-08-06 Laura Rebollo-Neira , Zhiqiang Xu

We propose an interdisciplinary framework that combines Bayesian predictive inference, a well-established tool in Machine Learning, with Formal Methods rooted in the computer science community. Bayesian predictive inference allows for…

统计计算 · 统计学 2025-08-21 Laura Vana , Ennio Visconti , Laura Nenzi , Annalisa Cadonna , Gregor Kastner

We develop a novel clustering method for distributional data, where each data point is regarded as a probability distribution on the real line. For distributional data, it has been challenging to develop a clustering method that utilizes…

统计方法学 · 统计学 2025-06-24 Ryo Okano , Masaaki Imaizumi

In the analysis of empirical signals, detecting correlations that capture genuine interactions between the elements of a complex system is a challenging task with applications across disciplines. Here we analyze a global data set of surface…

大气与海洋物理 · 物理学 2020-02-12 Dario A. Zappala , Marcelo Barreiro , Cristina Masoller

We investigate volume-element sampling strategies for the stochastic homogenization of particle-reinforced composites and show, via computational experiments, that an improper treatment of particles intersecting the boundary of the…

计算工程、金融与科学 · 计算机科学 2021-03-16 Matti Schneider , Marc Josien , Felix Otto

Cylindrical data frequently arise across various scientific disciplines, including meteorology (e.g., wind direction and speed), oceanography (e.g., marine current direction and speed or wave heights), ecology (e.g., telemetry), and…

统计方法学 · 统计学 2026-02-06 Francesca Labanca , Anna Gottard , Nadja Klein

Using a deterministic framework allows us to estimate a function with the purpose of interpolating data in spatial statistics. Radial basis functions are commonly used for scattered data interpolation in a d-dimensional space, however,…

统计计算 · 统计学 2024-04-03 Joaquin Cavieres , Michael Karkulik

The Gaussian copula is a powerful tool that has been widely used to model spatial and/or temporal correlated data with arbitrary marginal distributions. However, this kind of model can potentially be too restrictive since it expresses a…

统计方法学 · 统计学 2023-05-30 Moreno Bevilacqua , Eloy Alvarado , Christian Caamaño-Carrillo

The need to Fourier transform data sets with irregular sampling is shared by various domains of science. This is the case for example in astronomy or sismology. Iterative methods have been developed that allow to reach approximate…

数值分析 · 数学 2024-01-23 Guy Perrin

We propose a new conformal prediction method for time-series data with a guaranteed asymptotic conditional coverage rate, Sequential Conformalized Density Regions (SCDR), which is flexible enough to produce both prediction intervals and…

统计方法学 · 统计学 2026-04-09 M. Sampson , K. S. Chan

Motivated by recent experiments with two-component Bose-Einstein condensates, we study fully-connected spin models subject to an additional constraint. The constraint is responsible for the Hilbert space dimension to scale only linearly…

统计力学 · 物理学 2018-04-12 Jason R. Webster , Michael Kastner

Periodic point sets model all solid crystalline materials whose structures are determined in a rigid form and should be studied up to rigid motion or isometry preserving inter-point distances. In 2021 H.Edelsbrunner et al. introduced an…

计算几何 · 计算机科学 2022-05-05 Olga Anosova , Vitaliy Kurlin