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A parametric point process model is developed, with modeling based on the assumption that sequential observations often share latent phenomena, while also possessing idiosyncratic effects. An alternating optimization method is proposed to…

机器学习 · 统计学 2018-02-14 Hongteng Xu , Lawrence Carin , Hongyuan Zha

In this paper we apply a two-stage sequential design to item calibration problems under a three-parameter logistic model assumption. The measurement errors of the estimates of the latent trait levels of examinees are considered in our…

应用统计 · 统计学 2013-05-23 Yuan-chin Ivan Chang

In this work, we delve into the nonparametric empirical Bayes theory and approximate the classical Bayes estimator by a truncation of the generalized Laguerre series and then estimate its coefficients by minimizing the prior risk of the…

统计理论 · 数学 2021-12-17 Rida Benhaddou , Matthew Connell

Improving three-dimensional (3D) localization precision is of paramount importance for super-resolution imaging. By properly engineering the point spread function (PSF), such as utilizing Laguerre-Gaussian (LG) modes and their…

量子物理 · 物理学 2023-12-25 Chenyu Hu , Liang Xu , Ben Wang , Zhiwen Li , Yipeng Zhang , Yong Zhang , Lijian Zhang

Generalized Linear Models (GLMs) are an increasingly popular framework for modeling neural spike trains. They have been linked to the theory of stochastic point processes and researchers have used this relation to assess goodness-of-fit…

神经元与认知 · 定量生物学 2010-11-19 Felipe Gerhard , Wulfram Gerstner

An important problem in shape analysis is to match configurations of points in space filtering out some geometrical transformation. In this paper we introduce hierarchical models for such tasks, in which the points in the configurations are…

统计理论 · 数学 2010-03-23 Peter J. Green , Kanti Mardia

In computational mechanics, multiple models are often present to describe a physical system. While Bayesian model selection is a helpful tool to compare these models using measurement data, it requires the computationally expensive…

统计计算 · 统计学 2025-04-14 Subhayan De , Reza Farzad , Patrick T. Brewick , Erik A. Johnson , Steven F. Wojtkiewicz

We introduce a family of local inhomogeneous mark-weighted summary statistics, of order two and higher, for general marked point processes. Depending on how the involved weight function is specified, these summary statistics capture…

统计方法学 · 统计学 2024-03-13 Nicoletta D'Angelo , Giada Adelfio , Jorge Mateu , Ottmar Cronie

The Ising and Potts models, among the most important models in statistical physics, have been used for modeling binary and multinomial data on lattices in a wide variety of disciplines such as psychology, image analysis, biology, and…

统计方法学 · 统计学 2025-09-29 Maria Paula Duenas-Herrera , Stephen Berg , Murali Haran

We propose a method to modify a polygonal mesh in order to fit the zero-isoline of a level set function by extending a standard body-fitted strategy to a tessellation with arbitrarily-shaped elements. The novel level set-fitted approach, in…

计算工程、金融与科学 · 计算机科学 2023-11-03 Nicola Ferro , Stefano Micheletti , Nicola Parolini , Simona Perotto , Marco Verani , Paola Francesca Antonietti

Predicting the 3D conformation of small molecules within protein binding sites is a key challenge in drug design. When a crystallized reference ligand (template) is available, it provides geometric priors that can guide 3D pose prediction.…

生物大分子 · 定量生物学 2025-10-03 Noémie Bergues , Arthur Carré , Paul Join-Lambert , Brice Hoffmann , Arnaud Blondel , Hamza Tajmouati

This paper studies high-dimensional regression models with lasso when data is sampled under multi-way clustering. First, we establish convergence rates for the lasso and post-lasso estimators. Second, we propose a novel inference method…

计量经济学 · 经济学 2019-08-22 Harold D. Chiang , Yuya Sasaki

Controlling the microstructure of a diffusion welded interface is a critical point to ensure optimum mechanical properties and the homogeneity of the joint. Beyond the intimate contact formation between bonded parts studied in the…

We study tools for inference conditioned on model selection events that are defined by the generalized lasso regularization path. The generalized lasso estimate is given by the solution of a penalized least squares regression problem, where…

统计方法学 · 统计学 2016-06-14 Sangwon Hyun , Max G'Sell , Ryan J. Tibshirani

This paper introduces a preconditioned method designed to comprehensively address the saddle point system with the aim of improving convergence efficiency. In the preprocessor construction phase, a technical approach for solving the…

数值分析 · 数学 2024-04-10 Juan Zhang , Yiyi Luo

Structured point process data harvested from various platforms poses new challenges to the machine learning community. By imposing a matrix structure to repeatedly observed marked point processes, we propose a novel mixture model of…

机器学习 · 统计学 2021-11-18 Lihao Yin , Ganggang Xu , Huiyan Sang , Yongtao Guan

We introduce tests for the goodness of fit of point patterns via methods from topological data analysis. More precisely, the persistent Betti numbers give rise to a bivariate functional summary statistic for observed point patterns that is…

We delve into the estimation of the functional coefficients and inference for varying coefficient model. Applying Laguerre series, we develop an estimator for the vector of functional coefficients that attains asymptotically optimal…

统计理论 · 数学 2026-05-04 Rida Benhaddou , Khalid Chokri , Jackson Pinschenat

The last decade has seen max-stable processes emerge as a common tool for the statistical modeling of spatial extremes. However, their application is complicated due to the unavailability of the multivariate density function, and so…

统计方法学 · 统计学 2009-02-23 Simone A. Padoan , Mathieu Ribatet , Scott A. Sisson

The parameter fit from a model grid is limited by our capability to reduce the number of models, taking into account the number of parameters and the non linear variation of the models with the parameters. The Local MultiLinear Regression…

天体物理学 · 物理学 2009-11-13 A. Bijaoui , A. Recio-Blanco , P. de Laverny