<?xml version="1.0" encoding="UTF-8"?>
<collection xmlns="http://www.loc.gov/MARC21/slim">
 <record>
  <leader>02448ntm a22004937i 4500</leader>
  <controlfield tag="001">000725207</controlfield>
  <controlfield tag="003">CZ-PrVSE</controlfield>
  <controlfield tag="005">20250830133620.0</controlfield>
  <controlfield tag="006">m        d</controlfield>
  <controlfield tag="007">cr n||||||||||</controlfield>
  <controlfield tag="008">250830s2025    xr     fsbm   000 0 eng d</controlfield>
  <datafield tag="STA" ind1=" " ind2=" ">
   <subfield code="a">NEZPRACOVANÝ IMPORT</subfield>
  </datafield>
  <datafield tag="040" ind1=" " ind2=" ">
   <subfield code="a">ABA006</subfield>
   <subfield code="b">cze</subfield>
   <subfield code="c">ABA006</subfield>
   <subfield code="d">ABA006</subfield>
   <subfield code="e">rda</subfield>
  </datafield>
  <datafield tag="100" ind1="1" ind2=" ">
   <subfield code="a">Santos Portillo, Hector Jonathan</subfield>
   <subfield code="%">ISIS:179809</subfield>
   <subfield code="4">dis</subfield>
  </datafield>
  <datafield tag="242" ind1="1" ind2="0">
   <subfield code="a">Predicting Customer Churn for Avast Mobile Using Historical Data</subfield>
   <subfield code="y">eng</subfield>
  </datafield>
  <datafield tag="245" ind1="1" ind2="0">
   <subfield code="a">Predicting Customer Churn for Avast Mobile Using Historical Data /</subfield>
   <subfield code="c">Hector Jonathan Santos Portillo</subfield>
  </datafield>
  <datafield tag="264" ind1=" " ind2="0">
   <subfield code="c">2025</subfield>
  </datafield>
  <datafield tag="300" ind1=" " ind2=" ">
   <subfield code="a">?? stran :</subfield>
   <subfield code="3">digital, PDF soubor</subfield>
  </datafield>
  <datafield tag="500" ind1=" " ind2=" ">
   <subfield code="a">Vedoucí práce: Pavel Zimmermann</subfield>
  </datafield>
  <datafield tag="502" ind1=" " ind2=" ">
   <subfield code="a">Diplomová práce (Ing.)—Vysoká škola ekonomická v Praze. Fakulta informatiky a statistiky, 2025</subfield>
  </datafield>
  <datafield tag="504" ind1=" " ind2=" ">
   <subfield code="a">Obsahuje bibliografii</subfield>
  </datafield>
  <datafield tag="516" ind1=" " ind2=" ">
   <subfield code="a">Textový (vysokoškolská kvalifikační práce)</subfield>
  </datafield>
  <datafield tag="518" ind1=" " ind2=" ">
   <subfield code="a">Rok obhajoby 2025</subfield>
  </datafield>
  <datafield tag="520" ind1="3" ind2=" ">
   <subfield code="a">This thesis develops a propensity modeling framework to predict next-day churn among Avast Mobile Security users. Using behavioral, and notification data from the previous 7 days, and historical purchase data. The study trains two machine learning models, Logistic Regression and XGBoost, to generate churn propensity scores. Rather than making binary predictions, the models rank users by their likelihood to churn, enabling Avast to prioritize retention actions on the top 1% most at-risk users.</subfield>
  </datafield>
  <datafield tag="538" ind1=" " ind2=" ">
   <subfield code="a">Způsob přístupu: Internet</subfield>
  </datafield>
  <datafield tag="653" ind1="0" ind2=" ">
   <subfield code="a">data and business [obor dipl. práce]</subfield>
  </datafield>
  <datafield tag="655" ind1=" " ind2="7">
   <subfield code="a">diplomové práce</subfield>
   <subfield code="7">fd132022</subfield>
   <subfield code="2">czenas</subfield>
  </datafield>
  <datafield tag="655" ind1=" " ind2="9">
   <subfield code="a">master's theses</subfield>
   <subfield code="2">eczenas</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2=" ">
   <subfield code="a">avast</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2=" ">
   <subfield code="a">customer churn</subfield>
  </datafield>
  <datafield tag="690" ind1=" " ind2=" ">
   <subfield code="a">propensity</subfield>
  </datafield>
  <datafield tag="700" ind1="1" ind2=" ">
   <subfield code="a">Zimmermann, Pavel,</subfield>
   <subfield code="d">1980-</subfield>
   <subfield code="7">jo20251268570</subfield>
   <subfield code="4">ths</subfield>
  </datafield>
  <datafield tag="700" ind1="1" ind2=" ">
   <subfield code="a">Nedvěd, Vojtěch</subfield>
   <subfield code="%">ISIS:188202</subfield>
   <subfield code="4">opn</subfield>
  </datafield>
  <datafield tag="710" ind1="2" ind2=" ">
   <subfield code="a">Vysoká škola ekonomická v Praze.</subfield>
   <subfield code="b">Fakulta informatiky a statistiky</subfield>
   <subfield code="7">kn20010709399</subfield>
   <subfield code="4">dgg</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2="0">
   <subfield code="u">https://insis.vse.cz/zp/90159/podrobnosti</subfield>
   <subfield code="y">VŠKP v InSIS</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2="0">
   <subfield code="u">https://insis.vse.cz/zp/90159</subfield>
   <subfield code="y">Hlavní práce</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2="0">
   <subfield code="u">https://insis.vse.cz/zp/90159/posudek/vedouci</subfield>
   <subfield code="y">Hodnocení vedoucího</subfield>
  </datafield>
  <datafield tag="856" ind1="4" ind2="0">
   <subfield code="u">https://insis.vse.cz/zp/90159/posudek/oponent/88115</subfield>
   <subfield code="y">Oponentura</subfield>
  </datafield>
  <datafield tag="999" ind1="4" ind2="0">
   <subfield code="u">https://insis.vse.cz/zp/90159/podrobnosti</subfield>
   <subfield code="y">dc:identifier</subfield>
  </datafield>
  <datafield tag="993" ind1=" " ind2=" ">
   <subfield code="x">NEPOSILAT</subfield>
   <subfield code="y">VSKP</subfield>
  </datafield>
  <datafield tag="999" ind1="4" ind2="9">
   <subfield code="a">vse90159</subfield>
   <subfield code="b">250827</subfield>
  </datafield>
  <datafield tag="999" ind1="4" ind2="5">
   <subfield code="x">90159</subfield>
  </datafield>
 </record>
</collection>
