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The geographically weighted regression (GWR) is a well-known statistical approach to explore spatial non-stationarity of the regression relationship in spatial data analysis. In this paper, we discuss a Bayesian recourse of GWR. Bayesian…

应用统计 · 统计学 2020-07-07 Zhihua Ma , Yishu Xue , Guanyu Hu

A new method to improve the performance of Random weight change (RWC) algorithm based on a simple genetic algorithm, namely, Genetic random weight change (GRWC) is proposed. It is to find the optimal values of global minima via learning. In…

神经与进化计算 · 计算机科学 2019-06-06 Mohammad Ibraim Sarker , Yali Nie , Hong Yongki , Hyongsuk Kim

Many Markov Chain Monte Carlo (MCMC) methods leverage gradient information of the potential function of target distribution to explore sample space efficiently. However, computing gradients can often be computationally expensive for large…

机器学习 · 计算机科学 2021-09-24 Ruilin Li , Xin Wang , Hongyuan Zha , Molei Tao

A learned generative model often produces biased statistics relative to the underlying data distribution. A standard technique to correct this bias is importance sampling, where samples from the model are weighted by the likelihood ratio…

The effort to understand network systems in increasing detail has resulted in a diversity of methods designed to extract their large-scale structure from data. Unfortunately, many of these methods yield diverging descriptions of the same…

数据分析、统计与概率 · 物理学 2015-03-27 Tiago P. Peixoto

We investigate the theoretical foundations of a recently introduced entropy-based formulation of weighted least squares for the approximation of overdetermined linear systems, motivated by robust data fitting in the presence of sparse gross…

数值分析 · 数学 2026-03-17 Felice Iavernaro , Monica Lazzo , Lorenzo Pisani

Although largely different concepts, echo state networks and compressed sensing models both rely on collections of random weights; as the reservoir dynamics for echo state networks, and the sensing coefficients in compressed sensing.…

信息论 · 计算机科学 2018-02-06 Ashley Prater-Bennette

Support points summarize a large dataset through a smaller set of representative points that can be used for data operations, such as Monte Carlo integration, without requiring access to the full dataset. In this sense, support points offer…

机器学习 · 统计学 2025-09-01 Peiqi Zhao , Carlos E. Rodríguez , Ramsés H. Mena , Stephen G. Walker

The phenomenon of entropy concentration provides strong support for the maximum entropy method, MaxEnt, for inferring a probability vector from information in the form of constraints. Here we extend this phenomenon, in a discrete setting,…

信息论 · 计算机科学 2021-01-11 Kostas N. Oikonomou

Ranking and selection (R&S) aims to select the best alternative with the largest mean performance from a finite set of alternatives. Recently, considerable attention has turned towards the large-scale R&S problem which involves a large…

统计方法学 · 统计学 2025-09-09 Zaile Li , Weiwei Fan , L. Jeff Hong

In this paper, we propose the generalized mixed reduced rank regression method, GMR$^3$ for short. GMR$^3$ is a regression method for a mix of numeric, binary, and ordinal response variables. The predictor variables can be a mix of binary,…

统计方法学 · 统计学 2025-01-23 Mark de Rooij , Lorenza Cotugno , Roberta Siciliano

The r largest order statistics approach is widely used in extreme value analysis because it may use more information from the data than just the block maxima. In practice, the choice of r is critical. If r is too large, bias can occur; if…

统计方法学 · 统计学 2018-06-13 Brian Bader , Jun Yan , Xuebin Zhang

We study the problem of robust estimation under heterogeneous corruption rates, where each sample may be independently corrupted with a known but non-identical probability. This setting arises naturally in distributed and federated…

机器学习 · 计算机科学 2025-10-02 Syomantak Chaudhuri , Jerry Li , Thomas A. Courtade

Survival extropy, which quantifies the uncertainty associated with the remaining lifetime distribution, provides an information-theoretic perspective on survival behavior. We consider a divergence measure based on survival extropy and…

统计理论 · 数学 2025-12-03 Naresh Garg , Isha Dewan , Sudheesh Kumar Kattumannil

It is known that a best low-rank approximation to multi-way arrays or higher-order tensors may not exist. This is due to the fact that the set of multi-way arrays with rank at most $R$ is not closed. Nonexistence of the best low-rank…

代数几何 · 数学 2010-11-16 Alwin Stegeman

Problems of probabilistic inference and decision making under uncertainty commonly involve continuous random variables. Often these are discretized to a few points, to simplify assessments and computations. An alternative approximation is…

人工智能 · 计算机科学 2013-03-08 William B. Poland , Ross D. Shachter

Fused Gromov-Wasserstein (FGW) distances provide a principled framework for comparing objects by jointly aligning structure and node features. However, existing FGW formulations treat all features uniformly, which limits interpretability…

机器学习 · 计算机科学 2026-05-13 Harlin Lee , Ying Yu , Mingxin Li , Ranthony Clark

We propose a weighted common subgraph (WCS) matching algorithm to find the most similar subgraphs in two labeled weighted graphs. WCS matching, as a natural generalization of the equal-sized graph matching or subgraph matching, finds wide…

数据结构与算法 · 计算机科学 2014-11-05 Xu Yang , Hong Qiao , Zhi-Yong Liu

Introduction It has been demonstrated that a pathway-based feature selection method which incorporates biological information within pathways into the process of feature selection usually outperform a gene-based feature selection algorithm…

统计方法学 · 统计学 2016-05-13 Suyan Tian , Howard H. Chang , Chi Wang

Cluster-weighted modeling (CWM) is a mixture approach for modeling the joint probability of a response variable and a set of explanatory variables. The parameters are estimated by means of the expectation-maximization algorithm according to…

统计计算 · 统计学 2013-08-09 Salvatore Ingrassia , Simona C. Minotti