<?xml version="1.0" encoding="UTF-8"?>
<article article-type="Research Article">
  <front>
    <journal-meta>
      <journal-id journal-id-type="publisher">journal-of-statistics-and-management-systems</journal-id>
      <journal-title-group>
        <journal-title> Journal of Statistics and Management Systems</journal-title>
      </journal-title-group>
      <issn publication-format="electronic">2169-0014</issn>
      <issn publication-format="print">0972-0510</issn>
      <publisher>
        <publisher-name>Taru Publications</publisher-name>
      </publisher>
    </journal-meta>
    <article-meta>
      <article-id pub-id-type="doi">10.47974/JSMS-933</article-id>
      <title-group>
        <article-title>Cure rate and statistical inference for the Marshall-Olkin generalized defective Gompertz distribution under censored survival data</article-title>
      </title-group>
      <contrib-group>
        <contrib contrib-type="author" corresp="yes">
          <name>
            <surname>Hamdeni</surname>
            <given-names>Tasnime</given-names>
          </name>
          <aff>Department of Applied Mathematics, Laboratoire Signal, Image et Maitrise de l’Energie (LR13ES03), ENIT, University of Tunis El-Manar, Tunis, Tunisia</aff>
          <aff>Departement of Electrical Engineering, Ecole Nationale Supérieure des Ingénieurs de Tunis, 5 Avenue Taha Hussein, Montfleury, 1008, Tunis, Tunisia</aff>
        </contrib>
        <contrib contrib-type="author">
          <name>
            <surname>Gasmi</surname>
            <given-names>Soufiane</given-names>
          </name>
          <aff>Department of Mathematics, Laboratoire Modélisation Mathématique, Analyse Harmonique et théorie de potentiel (LR18ES09), ENSIT, University of Tunis, Tunis, Tunisia</aff>
        </contrib>
      </contrib-group>
      <volume>26</volume>
      <issue>4</issue>
      <fpage>833</fpage>
      <lpage>842</lpage>
      <pub-date date-type="pub">
        <day>10</day>
        <month>08</month>
        <year>2023</year>
      </pub-date>
      <abstract>
        <p>Cure fraction modeling usually requires the addition of an extra parameter. Defective modeling, alternatively, allows cure fraction modeling with less complexity. A new extension of the defective version of Gompertz distribution is studied in this paper. This distribution is compared to other well-founded distributions and its distinguished performance to fit censored survival data with and without a cure fraction is presented. A computational study is carried out to highlight the correlation between the censorship level and the proportion of long-term survivors. Interesting mathematical properties are established. The practical relevance of the model is illustrated by applying various real and simulated datasets. </p>
      </abstract>
      <kwd-group>
        <kwd>Cure fraction</kwd>
        <kwd>Defective modeling</kwd>
        <kwd>Gompertz distribution</kwd>
        <kwd>Marshall-Olkin</kwd>
        <kwd>Survival analysis</kwd>
      </kwd-group>
      <custom-meta-group>
        <custom-meta>
          <meta-name>access</meta-name>
          <meta-value>open</meta-value>
        </custom-meta>
        <custom-meta>
          <meta-name>retracted</meta-name>
          <meta-value>no</meta-value>
        </custom-meta>
      </custom-meta-group>
    </article-meta>
  </front>
</article>
