Helton Saulo - McMaster Experts

Affiliations

Faculty of Science, McMaster University
Mathematics and Statistics (Internal), Faculty of Science
Visiting Assistant Professor, Mathematics and Statistics, Faculty of Science

Scholarly Activity in McMaster Experts

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chapters
conferences
- A method for location recommendation via skyline query tolerant to noisy geo-referenced data. Proceedings of the Brazilian Symposium on GeoInformatics. 186-197. 2015
- Monitoring Environmental Risk by a Methodology Based on Control Charts. Springer Proceedings in Mathematics and Statistics. 177-197. 2015
journal articles
- Bivariate Log-Symmetric Regression Models Applied to Newborn Data. Symmetry. 16:1315. 2024
- Unit-log-symmetric models: characterization, statistical properties and their applications to analyzing an internet access data. Quality and Quantity. 58:4779-4806. 2024
- Novel Closed-Form Point Estimators for a Weighted Exponential Family Derived From Likelihood Equations. Stat. 13. 2024
- Family of bivariate distributions on the unit square: theoretical properties and applications. Journal of Applied Statistics. 51:1729-1755. 2024
- Unveiling patterns and trends in research on cumulative damage models for statistical and reliability analyses: Bibliometric and thematic explorations with data analytics. Chilean Journal of Statistics. 15:81-109. 2024
- On the Stress–Strength Reliability of Transmuted GEV Random Variables with Applications to Financial Assets Selection. Entropy. 26:441-441. 2024
- Parametric quantile autoregressive moving average models with exogenous terms. Statistical Papers. 65:1613-1643. 2024
- Zero-Adjusted Log-Symmetric Quantile Regression Models. Computational Economics. 63:2087-2111. 2024
- An upper bound and a characterization for Gini’s mean difference based on correlated random variables. Statistics and Probability Letters. 207:110032-110032. 2024
- Parametric Quantile Beta Regression Model. International Statistical Review. 92:106-129. 2024
- Parametric and partially linear regressions for agricultural economy data. Communications in Statistics - Theory and Methods. 53:2067-2091. 2024
- Theoretical results and modeling under the discrete Birnbaum-Saunders distribution. Communications in Statistics - Theory and Methods. 53:1745-1759. 2024
- Assessing the Impact of Copula Selection on Reliability Measures of Type P(X < Y) with Generalized Extreme Value Marginals. Modelling. 5:180-200. 2024
- A semiparametric accelerated failure time-based mixture cure tree. Journal of Applied Statistics. ahead-of-print:1-18. 2024
- Parametric Quantile Autoregressive Conditional Duration Models With Application to Intraday Value-at-Risk Forecasting. Journal of Forecasting. 2024
- On a length-biased Birnbaum-Saunders regression model applied to meteorological data. Communications in Statistics - Theory and Methods. 52:6916-6935. 2023
- Bivariate log-symmetric models: Distributional properties, parameter estimation and an application to public spending data. Brazilian Journal of Probability and Statistics. 37:619-642. 2023
- On a new extreme value distribution: characterization, parametric quantile regression, and application to extreme air pollution events. Stochastic Environmental Research and Risk Assessment. 37:1119-1136. 2023
- Bootstrap control charts for quantiles based on log‐symmetric distributions with applications to the monitoring of reliability data. Quality and Reliability Engineering International. 39:1-24. 2023
- A bivariate approach to the Mincerian earnings equation. Revista Brasileira de Economia. 77:e082023. 2023
- Bivariate symmetric Heckman models and their characterization. Journal of Multivariate Analysis. 193:105097-105097. 2023
- Modeling Income Data via New Parametric Quantile Regressions: Formulation, Computational Statistics, and Application. Mathematics. 11:448-448. 2023
- On a quantile autoregressive conditional duration model. Mathematics and Computers in Simulation. 203:425-448. 2023
- On a log-symmetric quantile tobit model applied to female labor supply data. Journal of Applied Statistics. 49:4225-4253. 2022
- Parametric quantile regression for income data 2022
- Symmetric generalized Heckman models 2022
- Parametric quantile autoregressive moving average models with exogenous terms applied to Walmart sales data 2022
- Log‐symmetric quantile regression models. Statistica Neerlandica. 76:124-163. 2022
- Gastos catastróficos em saúde: análise da associação com condições socioeconômicas em Minas Gerais, Brasil. Ciencia e Saude Coletiva. 27:325-334. 2022
- Effect of education and multimorbidity on mortality among older adults: findings from the health, well-being and ageing cohort study (SABE). Public Health. 201:69-74. 2021
- On some properties of the bimodal normal distribution and its bivariate version. Chilean Journal of Statistics. 12:125-144. 2021
- On some properties of the bimodal normal distribution and its bivariate version. Chilean Journal of Statistics. 12:125-144. 2021
- A New Quantile Regression Model and Its Diagnostic Analytics for a Weibull Distributed Response with Applications. Mathematics. 9:2768-2768. 2021
- A parametric quantile beta regression for modeling case fatality rates of COVID-19 2021
- Modeling Mortality Based on Pollution and Temperature Using a New Birnbaum–Saunders Autoregressive Moving Average Structure with Regressors and Related-Sensors Data. Sensors. 21:6518-6518. 2021
- On a quantile autoregressive conditional duration model applied to high-frequency financial data 2021
- On a Family of Discrete Log-Symmetric Distributions. Journal of Statistical Theory and Practice. 15. 2021
- The Negative Binomial Beta Prime Regression Model with Cure Rate: Application with a Melanoma Dataset. Journal of Statistical Theory and Practice. 15. 2021
- Scale-mixture Birnbaum-Saunders quantile regression models applied to personal accident insurance data 2021
- Estimating the covariance matrix of the coefficient estimator in multivariate partial least squares regression with chemical applications. Chemometrics and Intelligent Laboratory Systems. 214:104328-104328. 2021
- The zero-adjusted log-symmetric quantile regression model applied to extramarital affairs data 2021
- Bayesian inference for the Birnbaum–Saunders autoregressive conditional duration model with application to high-frequency financial data. Communications in Statistics Case Studies Data Analysis and Applications. 7:215-228. 2021
- Survival model induced by discrete frailty for modeling of lifetime data with long-term survivors and change-point. Communications in Statistics - Theory and Methods. 50:1161-1172. 2021
- A new BISARMA time series model for forecasting mortality using weather and particulate matter data. Journal of Forecasting. 40:346-364. 2021
- A bivariate fatigue-life regression model and its application to fracture of metallic tools. Brazilian Journal of Probability and Statistics. 35:119-137. 2021
- A class of asymmetric regression models for left-censored data. Brazilian Journal of Probability and Statistics. 35:62-84. 2021
- Bayesian inference for the log-symmetric autoregressive conditional duration model. Anais da Academia Brasileira de Ciencias. 93:e20190301. 2021
- Birnbaum‐Saunders quantile regression and its diagnostics with application to economic data. Applied Stochastic Models in Business and Industry. 37:53-73. 2021
- The role of VES-13 to identify limited life expectancy in older adults in primary healthcare settings. Revista da Escola de Enfermagem da U S P. 55:e03743. 2021
- On mean-based bivariate Birnbaum-Saunders distributions: Properties, inference and application. Communications in Statistics - Theory and Methods. 49:6032-6056. 2020
- On a new mixture-based regression model: simulation and application to data with high censoring. Journal of Statistical Computation and Simulation. 90:2861-2877. 2020
- Global and local diagnostic analytics for a geostatistical model based on a new approach to quantile regression. Stochastic Environmental Research and Risk Assessment. 34:1457-1471. 2020
- [Invited tutorial] Birnbaum–Saunders regression models: a comparative evaluation of three approaches. Journal of Statistical Computation and Simulation. 90:2552-2570. 2020
- On Asymmetric Regression Models with Allowance for Temporal Dependence. Journal of Statistical Theory and Practice. 14. 2020
- On a bimodal Birnbaum–Saunders distribution with applications to lifetime data. Brazilian Journal of Probability and Statistics. 34:495-518. 2020
- Birnbaum-Saunders Quantile Regression Models with Application to Spatial Data. Mathematics. 8:1000-1000. 2020
- A bimodal gamma distribution: properties, regression model and applications. Statistics. 54:469-493. 2020
- A General Family of Autoregressive Conditional Duration Models Applied to High-Frequency Financial Data. Journal of Risk and Financial Management. 13:45-45. 2020
- Gastos catastróficos em saúde e multimorbidade entre adultos mais velhos no Brasil. Revista de Saude Publica. 54:125-125. 2020
- Birnbaum–Saunders autoregressive conditional duration models applied to high-frequency financial data. Statistical Papers. 60:1605-1629. 2019
- On the existence and uniqueness of the maximum likelihood estimates of parameters of Laplace Birnbaum–Saunders distribution based on Type-I, Type-II and hybrid censored samples. Metrika. 82:759-778. 2019
- Some simple estimators for the two-parameter gamma distribution. Communications in Statistics Part B: Simulation and Computation. 48:2425-2437. 2019
- Log‐symmetric regression models: information criteria and application to movie business and industry data with economic implications. Applied Stochastic Models in Business and Industry. 35:963-977. 2019
- Theoretical results on the discrete Weibull distribution of Nakagawa and Osaki. Statistics. 53:339-363. 2019
- Discussion of “Birnbaum‐Saunders distribution: A review of models, analysis, and applications” by N. Balakrishnan and Debasis Kundu. Applied Stochastic Models in Business and Industry. 35:118-121. 2019
- Incorporation of frailties into a cure rate regression model and its diagnostics and application to melanoma data. Statistics in Medicine. 37:4421-4440. 2018
- The negative binomial beta prime regression model with cure rate 2018
- A new estimator for the covariance of the PLS coefficients estimator with applications to chemical data. Journal of Chemometrics. 32. 2018
- A survival model with Birnbaum–Saunders frailty for uncensored and censored cancer data. Brazilian Journal of Probability and Statistics. 32:707-729. 2018
- Log-symmetric regression models for correlated errors with an application to mortality data 2018
- On a bivariate Birnbaum-Saunders distribution parameterized by its means: features, reliability analysis and application 2018
- On a tobit–Birnbaum–Saunders model with an application to medical data. Journal of Applied Statistics. 45:932-955. 2018
- Public-Private Partnership Contractual Design: A Computational Model of the Moral Hazard with Lotteries. Public Organization Review. 18:39-51. 2018
- On a new approach to estimate the shape parameter of the inverse Gaussian distribution. South African Statistical Journal. 52:15-27. 2018
- On moment-type estimators for a class of log-symmetric distributions. Computational Statistics. 32:1339-1355. 2017
- On a new class of skewed Birnbaum–Saunders models. Journal of Statistical Theory and Practice. 11:573-593. 2017
- A new model selection criterion for partial least squares regression. Chemometrics and Intelligent Laboratory Systems. 169:64-78. 2017
- Estimation in generalized bivariate Birnbaum–Saunders models. Metrika. 80:427-453. 2017
- Birnbaum–Saunders frailty regression models: Diagnostics and application to medical data. Biometrical Journal. 59:291-314. 2017
- A methodology based on the Birnbaum–Saunders distribution for reliability analysis applied to nano-materials. Reliability Engineering & System Safety. 157:192-201. 2017
- On log-symmetric duration models applied to high frequency financial data. Economics Bulletin. 37:1089-1097. 2017
- Constrained test in linear models with multivariate power exponential distribution. Computational Statistics. 31:1569-1592. 2016
- A new Pareto-type distribution with applications in reliability and income data. Physica A: Statistical Mechanics and its Applications. 457:166-175. 2016
- A criterion for environmental assessment using Birnbaum–Saunders attribute control charts. Environmetrics. 26:463-476. 2015
- A family of autoregressive conditional duration models applied to financial data. Computational Statistics and Data Analysis. 79:175-191. 2014
- Capability indices for Birnbaum–Saunders processes applied to electronic and food industries. Journal of Applied Statistics. 41:1881-1902. 2014
- A nonparametric method for estimating asymmetric densities based on skewed Birnbaum–Saunders distributions applied to environmental data. Stochastic Environmental Research and Risk Assessment. 27:1479-1491. 2013
- Fiscal and monetary policy interactions: a game theory approach. Annals of Operations Research. 206:341-366. 2013
- Generalized Birnbaum–Saunders kernel density estimators and an analysis of financial data. Computational Statistics and Data Analysis. 63:1-15. 2013
- The Kumaraswamy Birnbaum–Saunders Distribution. Journal of Statistical Theory and Practice. 6:745-759. 2012
- Equilibrium, adverse selection, and statistical distributions. Economics Bulletin. 31:2066-2074. 2011
- Desenho Contratual de Parcerias Público-Privadas para Hospitais: Algumas notas teóricas. Economic Analysis of Law Review. 12:200-200.
- Estimating the Optimal Time for a Road Concession Contract in Brazil. International Journal of Economics and Finance. 9:44-44.
- Simulação de Monte Carlo para estimativa do tempo ótimo de contratos de concessão: Estudo de caso baseado em rodovias do Rio Grande do Sul. Revista do Serviço Público. 71:245-273.
preprints