Publications

To appear

• Ferreira, M., Gomes, M.I., Leiva, V., On an extreme value version of the Birnbaum-Saunders distribution. RevStat (in press).
• Athayde, E., Azevedo, C., Leiva, V., Sanhueza, A. About Birnbaum-Saunders distributions based on the Johnson system. Communications in Statistics - Theory and Methods (in press).
• Paula, G.A., Leiva, V., Barros, M., Liu, S. Robust statistical modeling using the Birnbaum-Saunders-t distribution applied to insurance. Applied Stochastic Models in Business and Industry (in press).

2012

• Caro-Lopera, F.J., Leiva, V., Balakrishnan, N., 2012 Connection between the Hadamard and matrix products with an application to a matrix-variate Birnbaum-Saunders distribution. Journal of Multivariate Analysis 104(1):126-139.
• Santos-Neto, M., Cysneiros F.J.A. Leiva, V., Ahmed, S.E. 2012. On new parameterizations of the Birnbaum-Saunders distribution. Pakistan Journal of Statistics 28(1):1-26.

2011

• Villegas, C., Paula, G.A., Leiva, V., 2011. Birnbaum-Saunders mixed models for censored reliability data analysis. IEEE Transactions on Reliability 60(4):748-758.
• Castillo, N.O., Gomez, H.W., Leiva, V., Sanhueza, A., 2011. On the Fernandez-Steel distribution: Inference and application. Computational Statistics and Data Analysis 55(11):2951-2961 .
• Balakrishnan, N., Gupta, R. Kundu, D., Leiva, V., Sanhueza, A., 2011. On some mixture models based on the Birnbaum-Saunders distribution and associated inference. Journal of Statistical Planning and Inference 141(7):2175-2190.
• Leiva, V., Athayde, E., Azevedo, C., Marchant, C. Modeling wind energy flux by a Birnbaum-Saunders distribution with unknown shift parameter. Journal of Applied Statistics 38(12): 2819-2838.
• Vilca, F., Santana, L., Leiva, V., Balakrishnan, N. 2011. Estimation of extreme percentiles in Birnbaum-Saunders distributions. Computational Statistics and Data Analysis 55(4):1665-1678.
• Santana, L., Vilca, F., Leiva, V., 2011. Influence analysis in skew-Birnbaum-Saunders regression models and applications. Journal of Applied Statistics 38(8):1633-1649.
• Leiva, V., Soto, G., Cabrera, E., Cabrera, G., 2011. New control charts based on the Birnbaum-Saunders distribution and their implementation. Colombian Journal of Statistics 34(1):147-176.
• Riquelme, M., Leiva, V., Galea, M., Sanhueza, A., 2011. Influence diagnostics on the coeficient of variation of elliptically contoured distributions. Journal of Applied Statistics 38(3):513-532.
• Sanhueza, A., Leiva, V., López-Kleine, L., 2011. On the Student-t mixture inverse Gaussian model with an application to protein production. Colombian Journal of Statistics 34(1):177-195.

2010

• Barros, M., Galea, M., Gonzalez, M., Leiva, V., 2010. Influence diagnostics in the tobit censored response model. Statistical Methods and Applications 19(3): 379-397.
• Castro-Kuriss, C., Kelmansky, D., Leiva, V., Martinez, E. 2010. On a goodness-of-fit test for normality with unknown parameters and type-II censored data. Journal of Applied Statistics 37(7):1193-1211.
• Vilca, F., Sanhueza, A., Leiva, V., Christakos, G., 2010. An extended Birnbaum-Saunders model and its application in the study of environmental quality in Santiago, Chile. Stochastic Environmental Research and Risk Assessment 24(5):771-782.
• Leiva, V., Sanhueza, A. Kotz, S., Araneda, N., 2010. A unified mixture model based on the inverse gaussian distribution. Pakistan Journal of Statistics 26(3):445-460.
• Kotz, S., Leiva, V., Sanhueza, A. 2010. Two new mixture models related to the inverse Gaussian distribution. Methodology and Computing in Applied Probability 12:199-212.
• Ahmed, S.E., Castro-Kuriss, C., Flores, E., Leiva, V., Sanhueza, A. 2010. A truncated version of the Birnbaum-Saunders distribution with an application in financial risk. Pakistan Journal of Statistics 26(1):293-311.
• Leiva, V., Vilca, F., Balakrishnan, N., Sanhueza, A., 2010 A skewed sinh-normal distribution and its properties and application to air pollution. Communications in Statistics: Theory and Methods 39(3):426-443.
• Leiva, V., Sanhueza, A., Sen, P.K., Araneda, N., 2010. M-procedures in the general multivariate nonlinear regression model. Pakistan Journal of Statistics 26(1):1-13.

2009

• Balakrishnan, N., Leiva, V., Sanhueza, A., Vilca, F., 2009. Estimation in the Birnbaum-Saunders distribution based on scale-mixture of normals and the EM-algorithm. Statistics and Operations Research Transactions 33 (2):171-192.
• Sanhueza, A., Leiva, V., Flores, E. 2009. On a length-biased life distribution based on the sinh-normal model. Journal of the Korean Statistical Society 38:323-330.
• Balakrishnan, N., Leiva, V., Sanhueza, A., Cabrera, E., 2009. Mixture inverse Gaussian distribution and its transformations, moments and applications. Statistics 43:91-104.
• Sanhueza, A., Sen, P.K., Leiva, V. 2009. A robust procedure in nonlinear models for repeated measurements. Communications in Statistics: Theory and Methods 38:138-155.
• Castro-Kuriss, C., Kelmansky, D., Leiva, V., Martinez, E., 2009. A new goodness-of-fit test for censored data with an application in monitoring processes. Communications in Statistics: Simulation and Computation 38(6):1161-1177.
• Guiraud, P., Leiva, V., Fierro, R. 2009. A non-central version of the Birnbaum-Saunders distribution for reliability analysis. IEEE Transactions on Reliability 58(1):152-160.
• Leiva, V., Sanhueza, A. Kelmansky, S., Martinez, E., 2009. On the glog-normal distribution and its association with the gene expression problem. Computational Statistics and Data Analysis 53(5):1613-1621.
• Leiva, V., Sanhueza, A., Angulo, J.M., 2009. A length-biased version of the Birnbaum-Saunders distribution with application in water quality. Stochastic Environmental Research and Risk Assessment 23:299-307.
• Barros, M., Paula, G.A., Leiva, V., 2009. An R implementation for generalized Birnbaum-Saunders distributions. Computational Statistics and Data Analysis 53(5):1511-1528.

2008

• Leiva, V., Sanhueza, A., Sen, P.K., Paula, G.A., 2008. Random number generators for the generalized Birnbaum-Saunders distribution. Journal of Statistical Computation and Simulation 78:1105-1118.
• Barros, M., Paula, G.A., Leiva, V., 2008. A new class of survival regression models with heavy-tailed errors: robustness and diagnostics. Lifetime Data Analysis 14(3): 316-332.
• Leiva, V., Sanhueza, A., Silva, A., Galea, M., 2008. A new three-parameter extension to the inverse Gaussian distribution. Statistics and Probability Letters 78(11):1266-1273.
• Leiva, V., Hernandez, H, Sanhueza, A., 2008. An R package for a general class of inverse Gaussian distributions. Journal of Statistical Software 26(4):1-21.
• Sanhueza, A., Leiva, V., Balakrishnan, N., 2008. A new class of inverse Gaussian type distributions. Metrika 68:31-49.
• Leiva, V., Barros, M., Paula, G.A., Sanhueza, A., 2008. Generalized Birnbaum-Saunders distributions applied to air pollutant concentration. Environmetrics 19:235-249.
• Sanhueza, A., Leiva, V., Balakrishnan, N., 2008. The generalized Birnbaum-Saunders distribution and its theory, methodology and application. Communications in Statistics: Theory and Methods 37:645-670.
• Leiva, V., Riquelme, M., Balakrishnan, N., Sanhueza, A., 2008. Lifetime analysis based on the generalized Birnbaum-Saunders distribution. Computational Statistics and Data Analysis 52(4):2079-2097.

2007-2002

• Leiva, V., Barros, M., Paula, G.A., Galea, M., 2007. Influence diagnostics in log Birnbaum-Saunders regression models with censored data. Computational Statistics and Data Analysis 51(12):5694-5707.
  
• Balakrishnan, N., Leiva, V., López, J., 2007. Acceptance sampling plans from truncated life tests from generalized Birnbaum-Saunders distribution. Communications in Statistics: Simulation and Computation 36:643-656.
  
• Vilca, F., Leiva, V., 2006. A new fatigue life model based on the family of skew elliptic distributions. Communications in Statistics: Theory and Methods 35:229-244.
  
• Leiva, V., Hernández, H., Riquelme, M., 2006. A new package for the Birnbaum-Saunders distribution. R Journal 6:35-40.
  
• Díaz-García, J.A., Leiva, V., 2005. A new family of life distributions based on elliptically contoured distributions. Journal of Statistical Planning and Inference 128(2):445-457 (Erratum: Journal of Statistical Planning and Inference 137:1512-1513).
  
• Galea, M., Leiva, V., Paula, G., 2004. Influence diagnostics in log-Birnbaum-Saunders regression models. Journal of Applied Statistics 31:1049-1064.
  
• Díaz-García, J.A., Leiva, V., 2003. Doubly non-central t and F distribution obtained under singular and non-singular elliptic distributions. Communications in Statistics: Theory and Methods 32:11-32.
  
• Díaz-García, J.A., Galea, M., Leiva, V., 2003. Influence diagnostics for multivariate elliptic regression linear models. Communications in Statistics: Theory and Methods 32:625-641.
  
• Díaz-García, J.A., Leiva, V., Galea, M., 2002. Singular elliptic distribution: density and applications. Communications in Statistics: Theory and Methods 31:665-681.