Works by Saulo, Helton

Results: 61

Bivariate extended skew-elliptical Heckman models: mathematical characterization and an application in economic sciences.

Published in:

Computational & Applied Mathematics, 2025, v. 44, n. 5, p. 1, doi. 10.1007/s40314-025-03169-z

By:

Vila, Roberto;
Saulo, Helton;
Marchant, Carolina;
Leiva, Victor;
Castro, Cecilia

Publication type:

Article

Some simple estimators for the two-parameter gamma distribution.

Published in:

Communications in Statistics: Simulation & Computation, 2019, v. 48, n. 8, p. 2425, doi. 10.1080/03610918.2018.1457693

By:

Saulo, Helton;
Bourguignon, Marcelo;
Zhu, Xiaojun;
Balakrishnan, N.

Publication type:

Article

Bayesian inference for the Birnbaum–Saunders autoregressive conditional duration model with application to high-frequency financial data.

Published in:

Communications in Statistics: Case Studies & Data Analysis, 2021, v. 7, n. 2, p. 215, doi. 10.1080/23737484.2021.1874571

By:

Fernando, Nascimento;
Jeremias, Leao;
Saulo, Helton

Publication type:

Article

Novel Closed‐Form Point Estimators for a Weighted Exponential Family Derived From Likelihood Equations.

Published in:

Stat, 2024, v. 13, n. 3, p. 1, doi. 10.1002/sta4.723

By:

Vila, Roberto;
Nakano, Eduardo;
Saulo, Helton

Publication type:

Article

Fiscal and monetary policy interactions: a game theory approach.

Published in:

Annals of Operations Research, 2013, v. 206, n. 1, p. 341, doi. 10.1007/s10479-013-1379-3

By:

Saulo, Helton;
Rêgo, Leandro;
Divino, Jose

Publication type:

Article

On moment-type estimators for a class of log-symmetric distributions.

Published in:

Computational Statistics, 2017, v. 32, n. 4, p. 1339, doi. 10.1007/s00180-017-0722-6

By:

Balakrishnan, N.;
Saulo, Helton;
Bourguignon, Marcelo;
Zhu, Xiaojun

Publication type:

Article

Constrained test in linear models with multivariate power exponential distribution.

Published in:

Computational Statistics, 2016, v. 31, n. 4, p. 1569, doi. 10.1007/s00180-016-0650-x

By:

Leão, Jeremias;
Cysneiros, Francisco;
Saulo, Helton;
Balakrishnan, N.

Publication type:

Article

Zero-Adjusted Log-Symmetric Quantile Regression Models.

Published in:

Computational Economics, 2024, v. 63, n. 5, p. 2087, doi. 10.1007/s10614-023-10420-4

By:

Cunha, Danúbia R.;
Divino, Jose Angelo;
Saulo, Helton

Publication type:

Article

Bootstrap control charts for quantiles based on log‐symmetric distributions with applications to the monitoring of reliability data.

Published in:

Quality & Reliability Engineering International, 2023, v. 39, n. 1, p. 1, doi. 10.1002/qre.3072

By:

Leiva, Víctor;
Santos, Rafael A. dos;
Saulo, Helton;
Marchant, Carolina;
Lio, Yuhlong

Publication type:

Article

Desenho Contratual de Parcerias Público-Privadas para Hospitais: Algumas Notas Teóricas.

Published in:

Economic Analysis of Law Review, 2021, v. 12, n. 3, p. 200

By:

Nobre Fernandez, Rodrigo;
Carraro, André;
Saulo Bezerra dos Santos, Helton

Publication type:

Article

Unveiling patterns and trends in research on cumulative damage models for statistical and reliability analyses: Bibliometric and thematic explorations with data analytics.

Published in:

Chilean Journal of Statistics (ChJS), 2024, v. 15, n. 1, p. 81, doi. 10.32372/ChJS.15-01-05

By:

LEIVA, VÍCTOR;
CASTRO, CECILIA;
VILA, ROBERTO;
SAULO, HELTON

Publication type:

Article

On some properties of the bimodal normal distribution and its bivariate version.

Published in:

Chilean Journal of Statistics (ChJS), 2021, v. 12, n. 2, p. 125

By:

VILA, ROBERTO;
SAULO, HELTON;
ROLDAN, JAMER

Publication type:

Article

Estimation for a family of skew scale-mixture distributions.

Published in:

Chilean Journal of Statistics (ChJS), 2017, v. 8, n. 2, p. 45

By:

Leão, Jeremias;
Balakrishnan, N.;
Saulo, Helton;
Tomazella, Vera

Publication type:

Article

Incorporation of frailties into a cure rate regression model and its diagnostics and application to melanoma data.

Published in:

2018

By:

Leão, Jeremias;
Leiva, Víctor;
Saulo, Helton;
Tomazella, Vera

Publication type:

journal article

A criterion for environmental assessment using Birnbaum-Saunders attribute control charts.

Published in:

Environmetrics, 2015, v. 26, n. 7, p. 463, doi. 10.1002/env.2349

By:

Leiva, Victor;
Marchant, Carolina;
Ruggeri, Fabrizio;
Saulo, Helton

Publication type:

Article

A semiparametric accelerated failure time-based mixture cure tree.

Published in:

Journal of Applied Statistics, 2025, v. 52, n. 6, p. 1177, doi. 10.1080/02664763.2024.2418476

By:

Aselisewine, Wisdom;
Pal, Suvra;
Saulo, Helton

Publication type:

Article

Family of bivariate distributions on the unit square: theoretical properties and applications.

Published in:

Journal of Applied Statistics, 2024, v. 51, n. 9, p. 1729, doi. 10.1080/02664763.2023.2232127

By:

Vila, Roberto;
Balakrishnan, Narayanaswamy;
Saulo, Helton;
Zörnig, Peter

Publication type:

Article

On a log-symmetric quantile tobit model applied to female labor supply data.

Published in:

Journal of Applied Statistics, 2022, v. 49, n. 16, p. 4225, doi. 10.1080/02664763.2021.1976120

By:

Cunha, Danúbia R.;
Divino, Jose Angelo;
Saulo, Helton

Publication type:

Article

On a tobit-Birnbaum-Saunders model with an application to medical data.

Published in:

Journal of Applied Statistics, 2018, v. 45, n. 5, p. 932, doi. 10.1080/02664763.2017.1322559

By:

Desousa, Mário F.;
Saulo, Helton;
Leiva, Víctor;
Scalco, Paulo

Publication type:

Article

Capability indices for Birnbaum–Saunders processes applied to electronic and food industries.

Published in:

Journal of Applied Statistics, 2014, v. 41, n. 9, p. 1881, doi. 10.1080/02664763.2014.897690

By:

Leiva, Víctor;
Marchant, Carolina;
Saulo, Helton;
Aslam, Muhammad;
Rojas, Fernando

Publication type:

Article

On the Stress–Strength Reliability of Transmuted GEV Random Variables with Applications to Financial Assets Selection.

Published in:

Entropy, 2024, v. 26, n. 6, p. 441, doi. 10.3390/e26060441

By:

Oliveira, Melquisadec;
Quintino, Felipe S.;
Aguiar, Dióscoros;
Rathie, Pushpa N.;
Saulo, Helton;
Fonseca, Tiago A. da;
Ozelim, Luan Carlos de Sena Monteiro

Publication type:

Article

Public-Private Partnership Contractual Design: A Computational Model of the Moral Hazard with Lotteries.

Published in:

Public Organization Review, 2018, v. 18, n. 1, p. 39, doi. 10.1007/s11115-016-0359-x

By:

Fernandez, Rodrigo Nobre;
Saulo, Helton;
Carraro, André;
Tourrucôo, Fabricio;
Hillbrecht, Ronald

Publication type:

Article

Birnbaum‐Saunders quantile regression and its diagnostics with application to economic data.

Published in:

Applied Stochastic Models in Business & Industry, 2021, v. 37, n. 1, p. 53, doi. 10.1002/asmb.2556

By:

Sánchez, Luis;
Leiva, Víctor;
Galea, Manuel;
Saulo, Helton

Publication type:

Article

Log‐symmetric regression models: information criteria and application to movie business and industry data with economic implications.

Published in:

Applied Stochastic Models in Business & Industry, 2019, v. 35, n. 4, p. 963, doi. 10.1002/asmb.2433

By:

Ventura, Marcelo;
Saulo, Helton;
Leiva, Victor;
Monsueto, Sandro

Publication type:

Article

Discussion of "Birnbaum‐Saunders distribution: A review of models, analysis, and applications" by N. Balakrishnan and Debasis Kundu.

Published in:

Applied Stochastic Models in Business & Industry, 2019, v. 35, n. 1, p. 118, doi. 10.1002/asmb.2386

By:

Saulo, Helton;
Leão, Jeremias;
Santos‐Neto, Manoel

Publication type:

Article

Simulação de Monte Carlo para esti mati va do tempo óti mo de contratos de concessão: estudo de caso baseado em rodovias do Rio Grande do Sul.

Published in:

Revista do Serviço Público (Civil Service Review), 2020, v. 71, n. 2, p. 245, doi. 10.21874/rsp.v71i2.3983

By:

Nobre Fernandez, Rodrigo;
Carraro, André;
Saulo, Helton;
Pivatto, Douglas;
Freitas, Everton

Publication type:

Article

Parametric Quantile Autoregressive Conditional Duration Models With Application to Intraday Value‐at‐Risk Forecasting.

Published in:

Journal of Forecasting, 2025, v. 44, n. 2, p. 589, doi. 10.1002/for.3214

By:

Saulo, Helton;
Pal, Suvra;
Souza, Rubens;
Vila, Roberto;
Dasilva, Alan

Publication type:

Article

A new BISARMA time series model for forecasting mortality using weather and particulate matter data.

Published in:

Journal of Forecasting, 2021, v. 40, n. 2, p. 346, doi. 10.1002/for.2718

By:

Leiva, Víctor;
Saulo, Helton;
Souza, Rubens;
Aykroyd, Robert G.;
Vila, Roberto

Publication type:

Article

Rendimento e desigualdade nas regiões metropolitanas brasileiras.

Published in:

Revista Brasileira de Economia de Empresas / Brazilian Journal of Business Economics, 2019, v. 19, n. 2, p. 39

By:

Cunha, Danúbia R.;
Lavoratto, Leticia A.;
Saulo, Helton;
Maciel, Daniel T. G. N.

Publication type:

Article

Log‐symmetric quantile regression models.

Published in:

Statistica Neerlandica, 2022, v. 76, n. 2, p. 124, doi. 10.1111/stan.12243

By:

Saulo, Helton;
Dasilva, Alan;
Leiva, Víctor;
Sánchez, Luis;
de la Fuente‐Mella, Hanns

Publication type:

Article

Gastos catastróficos em saúde: análise da associação com condições socioeconômicas em Minas Gerais, Brasil.

Published in:

Revista Ciência & Saúde Coletiva, 2022, v. 27, n. 1, p. 325, doi. 10.1590/1413-81232022271.40442020

By:

de Brito Macedo, Jéssica;
Crispim Boing, Alexandra;
Mara Andrade, Juliana;
Saulo, Helton;
Nobre Fernandez, Rodrigo;
Bof de Andrade, Fabíola

Publication type:

Article

On a new extreme value distribution: characterization, parametric quantile regression, and application to extreme air pollution events.

Published in:

Stochastic Environmental Research & Risk Assessment, 2023, v. 37, n. 3, p. 1119, doi. 10.1007/s00477-022-02318-8

By:

Saulo, Helton;
Vila, Roberto;
Bittencourt, Verônica L.;
Leão, Jeremias;
Leiva, Víctor;
Christakos, George

Publication type:

Article

Global and local diagnostic analytics for a geostatistical model based on a new approach to quantile regression.

Published in:

Stochastic Environmental Research & Risk Assessment, 2020, v. 34, n. 10, p. 1457, doi. 10.1007/s00477-020-01831-y

By:

Leiva, Víctor;
Sánchez, Luis;
Galea, Manuel;
Saulo, Helton

Publication type:

Article

A nonparametric method for estimating asymmetric densities based on skewed Birnbaum-Saunders distributions applied to environmental data.

Published in:

Stochastic Environmental Research & Risk Assessment, 2013, v. 27, n. 6, p. 1479, doi. 10.1007/s00477-012-0684-8

By:

Saulo, Helton;
Leiva, Víctor;
Ziegelmann, Flavio;
Marchant, Carolina

Publication type:

Article

Modeling Income Data via New Parametric Quantile Regressions: Formulation, Computational Statistics, and Application.

Published in:

Mathematics (2227-7390), 2023, v. 11, n. 2, p. 448, doi. 10.3390/math11020448

By:

Saulo, Helton;
Vila, Roberto;
Borges, Giovanna V.;
Bourguignon, Marcelo;
Leiva, Víctor;
Marchant, Carolina

Publication type:

Article

A New Quantile Regression Model and Its Diagnostic Analytics for a Weibull Distributed Response with Applications.

Published in:

Mathematics (2227-7390), 2021, v. 9, n. 21, p. 2768, doi. 10.3390/math9212768

By:

Sánchez, Luis;
Leiva, Víctor;
Saulo, Helton;
Marchant, Carolina;
Sarabia, José M.

Publication type:

Article

Birnbaum-Saunders Quantile Regression Models with Application to Spatial Data.

Published in:

Mathematics (2227-7390), 2020, v. 8, n. 6, p. 1000, doi. 10.3390/math8061000

By:

Sánchez, Luis;
Leiva, Víctor;
Galea, Manuel;
Saulo, Helton

Publication type:

Article

A new estimator for the covariance of the PLS coefficients estimator with applications to chemical data.

Published in:

Journal of Chemometrics, 2018, v. 32, n. 12, p. N.PAG, doi. 10.1002/cem.3069

By:

Martínez, José L.;
Leiva, Víctor;
Saulo, Helton;
Ruggeri, Fabrizio;
Arteaga, Gean C.;
Marie‐Laure, Abel

Publication type:

Article

Unit-log-symmetric models: characterization, statistical properties and their applications to analyzing an internet access data.

Published in:

Quality & Quantity, 2024, v. 58, n. 5, p. 4779, doi. 10.1007/s11135-024-01879-w

By:

Vila, Roberto;
Balakrishnan, Narayanaswamy;
Saulo, Helton;
Zörnig, Peter

Publication type:

Article

Modeling Mortality Based on Pollution and Temperature Using a New Birnbaum–Saunders Autoregressive Moving Average Structure with Regressors and Related-Sensors Data.

Published in:

Sensors (14248220), 2021, v. 21, n. 19, p. 6518, doi. 10.3390/s21196518

By:

Saulo, Helton;
Souza, Rubens;
Vila, Roberto;
Leiva, Víctor;
Aykroyd, Robert G.

Publication type:

Article

Bivariate Log-Symmetric Regression Models Applied to Newborn Data.

Published in:

Symmetry (20738994), 2024, v. 16, n. 10, p. 1315, doi. 10.3390/sym16101315

By:

Saulo, Helton;
Vila, Roberto;
Souza, Rubens

Publication type:

Article

Birnbaum-Saunders frailty regression models: Diagnostics and application to medical data.

Published in:

Biometrical Journal, 2017, v. 59, n. 2, p. 291, doi. 10.1002/bimj.201600008

By:

Leão, Jeremias;
Leiva, Víctor;
Saulo, Helton;
Tomazella, Vera

Publication type:

Article

Assessing the Impact of Copula Selection on Reliability Measures of Type P (X < Y) with Generalized Extreme Value Marginals.

Published in:

Modelling, 2024, v. 5, n. 1, p. 180, doi. 10.3390/modelling5010010

By:

Lima, Rebeca Klamerick;
Quintino, Felipe Sousa;
da Fonseca, Tiago A.;
de Sena Monteiro Ozelim, Luan Carlos;
Rathie, Pushpa Narayan;
Saulo, Helton

Publication type:

Article

A bimodal gamma distribution: properties, regression model and applications.

Published in:

Statistics, 2020, v. 54, n. 3, p. 469, doi. 10.1080/02331888.2020.1764560

By:

Vila, Roberto;
Ferreira, Letícia;
Saulo, Helton;
Prataviera, Fábio;
Ortega, Edwin

Publication type:

Article

Theoretical results on the discrete Weibull distribution of Nakagawa and Osaki.

Published in:

Statistics, 2019, v. 53, n. 2, p. 339, doi. 10.1080/02331888.2018.1550645

By:

Vila, Roberto;
Nakano, Eduardo Y.;
Saulo, Helton

Publication type:

Article

On a new mixture-based regression model: simulation and application to data with high censoring.

Published in:

Journal of Statistical Computation & Simulation, 2020, v. 90, n. 16, p. 2861, doi. 10.1080/00949655.2020.1790560

By:

Desousa, Mário F.;
Saulo, Helton;
Santos-Neto, Manoel;
Leiva, Víctor

Publication type:

Article

[Invited tutorial] Birnbaum–Saunders regression models: a comparative evaluation of three approaches.

Published in:

Journal of Statistical Computation & Simulation, 2020, v. 90, n. 14, p. 2552, doi. 10.1080/00949655.2020.1782912

By:

Dasilva, Alan;
Dias, Renata;
Leiva, Victor;
Marchant, Carolina;
Saulo, Helton

Publication type:

Article

Parametric quantile autoregressive moving average models with exogenous terms.

Published in:

Statistical Papers, 2024, v. 65, n. 3, p. 1613, doi. 10.1007/s00362-023-01459-4

By:

Dasilva, Alan;
Saulo, Helton;
Vila, Roberto;
Fiorucci, Jose A.;
Pal, Suvra

Publication type:

Article

Birnbaum–Saunders autoregressive conditional duration models applied to high-frequency financial data.

Published in:

Statistical Papers, 2019, v. 60, n. 5, p. 1605, doi. 10.1007/s00362-017-0888-6

By:

Saulo, Helton;
Leão, Jeremias;
Leiva, Víctor;
Aykroyd, Robert G.

Publication type:

Article

Parametric Quantile Beta Regression Model.

Published in:

International Statistical Review, 2024, v. 92, n. 1, p. 106, doi. 10.1111/insr.12564

By:

Bourguignon, Marcelo;
Gallardo, Diego I.;
Saulo, Helton

Publication type:

Article