diff --git a/bibliography.bib b/bibliography.bib
index 3005bf0..25c976d 100644
--- a/bibliography.bib
+++ b/bibliography.bib
@@ -1096,4 +1096,3 @@
   year={2018},
   publisher={VLDB Endowment}
 }
-
diff --git a/graphics/logos/cnrs.pdf b/graphics/logos/cnrs.pdf
new file mode 100644
index 0000000..234ba7c
Binary files /dev/null and b/graphics/logos/cnrs.pdf differ
diff --git a/graphics/logos/cyu.pdf b/graphics/logos/cyu.pdf
new file mode 100644
index 0000000..8bf6303
Binary files /dev/null and b/graphics/logos/cyu.pdf differ
diff --git a/graphics/logos/ensea.pdf b/graphics/logos/ensea.pdf
new file mode 100644
index 0000000..c91830f
Binary files /dev/null and b/graphics/logos/ensea.pdf differ
diff --git a/graphics/logos/etis.pdf b/graphics/logos/etis.pdf
new file mode 100644
index 0000000..ad29418
Binary files /dev/null and b/graphics/logos/etis.pdf differ
diff --git a/main.tex b/main.tex
index 3782955..b05e665 100644
--- a/main.tex
+++ b/main.tex
@@ -1,5 +1,6 @@
 \documentclass[oneside]{scrbook}
 
+\usepackage[a4paper]{geometry}
 \usepackage[french, english]{babel}
 \usepackage[utf8]{inputenc}
 \usepackage[T1]{fontenc}
@@ -8,7 +9,6 @@
 \usepackage[hyphenbreaks]{breakurl}
 \usepackage{booktabs}
 \usepackage{stmaryrd}
-\usepackage[T1]{fontenc}
 \usepackage{cite}
 
 % packages for algorithm formatting
@@ -22,7 +22,6 @@
 %custom packages
 \usepackage{adjustbox}
 \usepackage[normalem]{ulem}
-\usepackage{geometry}
 \usepackage{xcolor}
 \usepackage{enumerate}
 \usepackage{multirow}
@@ -42,7 +41,7 @@
 
 \begin{document}
 
-% \input{titlepage}
+\input{titlepage}
 
 \frontmatter
 
@@ -55,9 +54,9 @@
 % \input{abstract}
 
 \mainmatter
-
+\nocite{*}
 % \input{introduction}
-\input{background}
+% \input{background}
 % \input{related}
 
 \backmatter
diff --git a/titlepage.tex b/titlepage.tex
index b6ef62b..72be6b9 100644
--- a/titlepage.tex
+++ b/titlepage.tex
@@ -1,56 +1,52 @@
 \begin{titlepage}
+
   \centering
-  % \includegraphics[width=0.15\textwidth]{example-image-1x1}\par\vspace{1cm}
-  {\LARGE Quality \& Privacy in User-generated Big Data:\par
-  Algorithms \& Techniques\par}
-  \vspace{2cm}
-  {\footnotesize PRESENTED THE September X, 2019
-  % PRÉSENTÉE LE X Septembre 2019
-  \par}
-  \vspace{0.5cm}
-  {\footnotesize AT THE FACULTY OF INFORMATION \& COMMUNICATION SCIENCES \& TECHNOLOGIES
-  % À LA FACULTÉ DES SCIENCES ET TECHNOLOGIES DE L'INFORMATION ET DE LA COMMUNICATION
-  \par}
-  {\footnotesize ETIS LAB
-  % LABORATOIRE ETIS
-  \par}
-  {\footnotesize DOCTORAL PROGRAMME IN SCIENCES \& TECHNOLOGIES
-  % PROGRAMME DOCTORAL EN SCIENCES ET INGÉNIERIE
-  \par}
-  \vspace{1cm}
-  {\large PARIS-SEINE UNIVERSITY
-  % UNIVERSITÉ PARIS-SEINE
-  \par}
-  \vspace{0.5cm}
-  {\footnotesize FOR OBTAINING THE GRADE OF DOCTOR OF SCIENCES
-  % POUR L’OBTENTION DU GRADE DE DOCTEUR ÈS SCIENCES
-  \par}
-  \vspace{2cm}
-  {\footnotesize BY
-  % PAR
-  \par}
-  \vspace{0.5cm}
-  {\large Manos KATSOMALLOS\par}
+
+  {\huge Quality \& Privacy in User-generated Big Data:\\
+  Algorithms \& Techniques\\}
+  \vspace{6em}
+
+  {PRÉSENTÉE LE ** *** ****\\}
+  \vspace{1em}
+
+  {À LA CY TECH - SCIENCES ET TECHNIQUES\\}
+  {EQUIPES TRAITEMENT DE L'INFORMATION ET SYSTÈMES (ETIS)\\}
+  {PROGRAMME DOCTORAL EN SCIENCES ET TECHNOLOGIES DE L'INFORMATION ET DE LA COMMUNICATION (STIC)\\}
+  \vspace{2em}
+
+  {\Large CY CERGY PARIS UNIVERSITÉ\\}
+  \vspace{2em}
+
+  {POUR L’OBTENTION DU GRADE DE DOCTEUR ÈS SCIENCES\\}
+  \vspace{4em}
+
+  {\Large PAR\\}
+  \vspace{2em}
+  {\Large Manos KATSOMALLOS\\}
   \vfill
-  {\footnotesize
-  accepted on the proposal of the jury:
-  % acceptée sur proposition du jury :
-  \par
-  \vspace{0.5cm}
-  Dr. ..., jury president
-  % président du jury
-  \par
-  Dr. ..., jury member\par
-  Dr. Dimitris Kotzinos, supervisor
-  % directeur de thèse
-  \par
-  Dr. Katerina (Aikaterini) Tzompanaki, co-supervisor
-  % co-directrice de thèse
-  \par
-  Dr. ..., rapporteur\par}
+
+  {acceptée sur proposition du jury :\\
+  \vspace{1em}
+  Prof. Dimitris Kotzinos, directeur de thèse\\
+  Prof. Katerina Tzompanaki, co-encadrante de thèse\\
+  Dr. *** ***, rapporteur\\
+  Dr. *** ***, examinateur\\}
   \vfill
+
   % Bottom of the page
-  \includegraphics[height=1.5cm]{logo-universite-paris-seine}\par
-  {\footnotesize France\par
-  2019}
+  \begin{minipage}{\linewidth}
+    \centering
+    \raisebox{-.5\height}{\includegraphics[width=.125\linewidth]{logos/etis}}
+    \qquad
+    \raisebox{-.5\height}{\includegraphics[width=.125\linewidth]{logos/cyu}}
+    \qquad
+    \raisebox{-.5\height}{\includegraphics[width=.125\linewidth]{logos/ensea}}
+    \qquad
+    \raisebox{-.5\height}{\includegraphics[width=.125\linewidth]{logos/cnrs}}
+  \end{minipage}
+  \vspace{.5em}
+  \\
+  {France\\
+  ****}
+
 \end{titlepage}