The odd log-logistic Lindley Poisson model for lifetime data

Ozel G., Alizadeh M., Cakmakyapan S. , Hamedani G. G. , Ortega E. M. M. , Cancho V. G.

COMMUNICATIONS IN STATISTICS-SIMULATION AND COMPUTATION, cilt.46, sa.8, ss.6513-6537, 2017 (SCI İndekslerine Giren Dergi) identifier identifier

  • Yayın Türü: Makale / Tam Makale
  • Cilt numarası: 46 Konu: 8
  • Basım Tarihi: 2017
  • Doi Numarası: 10.1080/03610918.2016.1206931
  • Sayfa Sayıları: ss.6513-6537


We define two new lifetime models called the odd log-logistic Lindley (OLL-L) and odd log-logistic Lindley Poisson (OLL-LP) distributions with various hazard rate shapes such as increasing, decreasing, upside-down bathtub, and bathtub. Various structural properties are derived. Certain characterizations of OLL-L distribution are presented. The maximum likelihood estimators of the unknown parameters are obtained. We propose a flexible cure rate survival model by assuming that the number of competing causes of the event of interest has a Poisson distribution and the time to event has an OLL-L distribution. The applicability of the new models is illustrated by means real datasets.