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Estimation of the mean exponential survival time under a sequential censoring scheme 顺序删减方案下平均指数生存时间的估算
IF 1.5 4区 数学
Journal of Applied Statistics Pub Date : 2024-08-03 DOI: 10.1080/02664763.2024.2386609
Jun Hu, Hon Yiu So, Yan Zhuang
{"title":"Estimation of the mean exponential survival time under a sequential censoring scheme","authors":"Jun Hu, Hon Yiu So, Yan Zhuang","doi":"10.1080/02664763.2024.2386609","DOIUrl":"https://doi.org/10.1080/02664763.2024.2386609","url":null,"abstract":"The exponential distribution can provide a simple and appealing survival-time model in reliability analysis and life tests. Due to certain experimental designs, time limitations, budgetary requirem...","PeriodicalId":15239,"journal":{"name":"Journal of Applied Statistics","volume":"22 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-08-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937910","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Mixtures of logistic normal multinomial regression models for microbiome data 微生物组数据的逻辑正态多项式回归模型混合物
IF 1.5 4区 数学
Journal of Applied Statistics Pub Date : 2024-08-01 DOI: 10.1080/02664763.2024.2383286
Wenshu Dai, Yuan Fang, Sanjeena Subedi
{"title":"Mixtures of logistic normal multinomial regression models for microbiome data","authors":"Wenshu Dai, Yuan Fang, Sanjeena Subedi","doi":"10.1080/02664763.2024.2383286","DOIUrl":"https://doi.org/10.1080/02664763.2024.2383286","url":null,"abstract":"In the realm of bioinformatics, we frequently encounter discrete data, particularly microbiome taxa count data obtained through 16S rRNA sequencing. These microbiome datasets are commonly character...","PeriodicalId":15239,"journal":{"name":"Journal of Applied Statistics","volume":"28 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-08-01","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937911","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Sample size calculation for the sequential parallel comparison design with binary endpoint using exact methods 用精确法计算二元终点顺序平行比较设计的样本量
IF 1.5 4区 数学
Journal of Applied Statistics Pub Date : 2024-07-31 DOI: 10.1080/02664763.2024.2385997
Guogen Shan, Yahui Zhang
{"title":"Sample size calculation for the sequential parallel comparison design with binary endpoint using exact methods","authors":"Guogen Shan, Yahui Zhang","doi":"10.1080/02664763.2024.2385997","DOIUrl":"https://doi.org/10.1080/02664763.2024.2385997","url":null,"abstract":"High placebo responses in clinical trial could reduce the treatment effect leading to the failure of a promising drug. Several strategies have been developed to minimize high placebo responses, inc...","PeriodicalId":15239,"journal":{"name":"Journal of Applied Statistics","volume":"44 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-07-31","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141937912","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Accurate identification of single-cell types via correntropy-based Sparse PCA combining hypergraph and fusion similarity 通过基于熵的稀疏 PCA（结合超图和融合相似性）准确识别单细胞类型
IF 1.5 4区 数学
Journal of Applied Statistics Pub Date : 2024-07-21 DOI: 10.1080/02664763.2024.2369955
Juan Wang, Tai-Ge Wang, Shasha Yuan, Feng Li
{"title":"Accurate identification of single-cell types via correntropy-based Sparse PCA combining hypergraph and fusion similarity","authors":"Juan Wang, Tai-Ge Wang, Shasha Yuan, Feng Li","doi":"10.1080/02664763.2024.2369955","DOIUrl":"https://doi.org/10.1080/02664763.2024.2369955","url":null,"abstract":"The advent of single-cell RNA sequencing (scRNA-seq) technology enables researchers to gain deep insights into cellular heterogeneity. However, the high dimensionality and noise of scRNA-seq data p...","PeriodicalId":15239,"journal":{"name":"Journal of Applied Statistics","volume":"45 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-07-21","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141782763","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Marginalized LASSO in the low-dimensional difference-based partially linear model for variable selection 用于变量选择的基于低维差分的部分线性模型中的边际化 LASSO
IF 1.5 4区 数学
Journal of Applied Statistics Pub Date : 2024-07-09 DOI: 10.1080/02664763.2024.2372676
M. Norouzirad, R. Moura, M. Arashi, F. J. Marques
{"title":"Marginalized LASSO in the low-dimensional difference-based partially linear model for variable selection","authors":"M. Norouzirad, R. Moura, M. Arashi, F. J. Marques","doi":"10.1080/02664763.2024.2372676","DOIUrl":"https://doi.org/10.1080/02664763.2024.2372676","url":null,"abstract":"The difference-based partially linear model is an appropriate regression model when both linear and nonlinear predictors are present in the data. However, when we want to optimize the weights using...","PeriodicalId":15239,"journal":{"name":"Journal of Applied Statistics","volume":"23 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-07-09","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586371","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Diagnostics for categorical response models based on quantile residuals and distance measures 基于量级残差和距离测量的分类响应模型诊断法
IF 1.5 4区 数学
Journal of Applied Statistics Pub Date : 2024-07-05 DOI: 10.1080/02664763.2024.2367150
Patrícia Peres Araripe, Idemauro Antonio Rodrigues de Lara, Gabriel Rodrigues Palma, Niamh Cahill, Rafael de Andrade Moral
{"title":"Diagnostics for categorical response models based on quantile residuals and distance measures","authors":"Patrícia Peres Araripe, Idemauro Antonio Rodrigues de Lara, Gabriel Rodrigues Palma, Niamh Cahill, Rafael de Andrade Moral","doi":"10.1080/02664763.2024.2367150","DOIUrl":"https://doi.org/10.1080/02664763.2024.2367150","url":null,"abstract":"Polytomous categorical data are frequent in studies, that can be obtained with an individual or grouped structure. In both structures, the generalized logit model is commonly used to relate the cov...","PeriodicalId":15239,"journal":{"name":"Journal of Applied Statistics","volume":"56 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-07-05","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613844","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Time of week intensity estimation from partly interval censored data with applications to police patrol planning 从部分间隔删减数据中估算每周时间强度，并应用于警察巡逻规划
IF 1.5 4区 数学
Journal of Applied Statistics Pub Date : 2024-07-03 DOI: 10.1080/02664763.2024.2371901
Jiahao Tian, Michael D. Porter
{"title":"Time of week intensity estimation from partly interval censored data with applications to police patrol planning","authors":"Jiahao Tian, Michael D. Porter","doi":"10.1080/02664763.2024.2371901","DOIUrl":"https://doi.org/10.1080/02664763.2024.2371901","url":null,"abstract":"Law enforcement agencies are tasked with crime prevention and crime reduction under limited resources. Having an accurate temporal estimate of the crime rate would be valuable to achieve such a goa...","PeriodicalId":15239,"journal":{"name":"Journal of Applied Statistics","volume":"11 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141613885","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Comparing heart PET scans: an adjustment of Kolmogorov-Smirnov test under spatial autocorrelation 比较心脏正电子发射计算机断层扫描：空间自相关性下的柯尔莫哥洛夫-斯米尔诺夫检验调整
IF 1.5 4区 数学
Journal of Applied Statistics Pub Date : 2024-07-03 DOI: 10.1080/02664763.2024.2366300
Wenjun Zheng, Hongjian Zhu, K. Lance Gould, Dejian Lai
{"title":"Comparing heart PET scans: an adjustment of Kolmogorov-Smirnov test under spatial autocorrelation","authors":"Wenjun Zheng, Hongjian Zhu, K. Lance Gould, Dejian Lai","doi":"10.1080/02664763.2024.2366300","DOIUrl":"https://doi.org/10.1080/02664763.2024.2366300","url":null,"abstract":"The principle of independence is a fundamental yet often disregarded assumption in statistical inference. It is observed that the implications of correlations, if not considered, can lead to a cons...","PeriodicalId":15239,"journal":{"name":"Journal of Applied Statistics","volume":"16 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141586372","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
Estimating changepoints in extremal dependence, applied to aviation stock prices during COVID-19 pandemic. 估计极值依赖中的变化点，应用于 COVID-19 大流行期间的航空股价。
IF 1.2 4区 数学
Journal of Applied Statistics Pub Date : 2024-07-03 eCollection Date: 2025-01-01 DOI: 10.1080/02664763.2024.2373939
Arnab Hazra, Shiladitya Bose
{"title":"Estimating changepoints in extremal dependence, applied to aviation stock prices during COVID-19 pandemic.","authors":"Arnab Hazra, Shiladitya Bose","doi":"10.1080/02664763.2024.2373939","DOIUrl":"10.1080/02664763.2024.2373939","url":null,"abstract":"<p><p>The dependence in the tails of the joint distribution of two random variables is generally assessed using <i>χ</i>-measure, the limiting conditional probability of one variable being extremely high given the other variable is also extremely high. This work is motivated by the structural changes in <i>χ</i>-measure between the daily rate of return (RoR) of the two Indian airlines, IndiGo and SpiceJet, during the COVID-19 pandemic. We model the daily maximum and minimum RoR vectors (potentially transformed) using the bivariate Hüsler-Reiss (BHR) distribution. To estimate the changepoint in the <i>χ</i>-measure of the BHR distribution, we explore two changepoint detection procedures based on the Likelihood Ratio Test (LRT) and Modified Information Criterion (MIC). We obtain critical values and power curves of the LRT and MIC test statistics for low through high values of <i>χ</i>-measure. We also explore the consistency of the estimators of the changepoint based on LRT and MIC numerically. In our data application, for RoR maxima and minima, the most prominent changepoints detected by LRT and MIC are close to the announcement of the first phases of lockdown and unlock, respectively, which are realistic; thus, our study would be beneficial for portfolio optimization in the case of future pandemic situations.</p>","PeriodicalId":15239,"journal":{"name":"Journal of Applied Statistics","volume":"52 3","pages":"525-554"},"PeriodicalIF":1.2,"publicationDate":"2024-07-03","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"https://www.ncbi.nlm.nih.gov/pmc/articles/PMC11816642/pdf/","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"143414149","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"OA","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
A new EWMA chart for simultaneously monitoring the parameters of a shifted exponential distribution 用于同时监测移位指数分布参数的新 EWMA 图表
IF 1.5 4区 数学
Journal of Applied Statistics Pub Date : 2024-07-02 DOI: 10.1080/02664763.2024.2363404
Amita Baranwal, Nirpeksh Kumar, Kashinath Chatterjee, Christos Koukouvinos
{"title":"A new EWMA chart for simultaneously monitoring the parameters of a shifted exponential distribution","authors":"Amita Baranwal, Nirpeksh Kumar, Kashinath Chatterjee, Christos Koukouvinos","doi":"10.1080/02664763.2024.2363404","DOIUrl":"https://doi.org/10.1080/02664763.2024.2363404","url":null,"abstract":"In various scenarios where products and services are accompanied by warranties to ensure their reliability over a specified time, the two-parameter (shifted) exponential distribution serves as a fu...","PeriodicalId":15239,"journal":{"name":"Journal of Applied Statistics","volume":"62 1","pages":""},"PeriodicalIF":1.5,"publicationDate":"2024-07-02","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":null,"resultStr":null,"platform":"Semanticscholar","paperid":"141548902","PeriodicalName":null,"FirstCategoryId":null,"ListUrlMain":null,"RegionNum":4,"RegionCategory":"数学","ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":"","EPubDate":null,"PubModel":null,"JCR":null,"JCRName":null,"Score":null,"Total":0}
引用次数: 0
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