The following are the codes I used. The problem is that the outline page will automatically append every other page, but actually, I only want to have the one outline frame at the beginning. How to stop automatically appending the outline pages?
\documentclass{beamer}
\usepackage{tabularx}
\usetheme{Madrid}
\title{An empirical Bayes approach to predict
radiation-induced toxicity using large-scale
SNPs}
\author[C.e]{Ch \\ \vspace{5mm}
Promotor: Prof. Olivier Thas \\ Tutor: Chamberlain Mbah}
\institute[University]{\textbf { University}}
\date{11 September 2017}
\subject{Theoretical Computer Science}
\AtBeginSubsection[]
{
\begin{frame}<beamer>{Outline}
\tableofcontents[currentsection,currentsubsection]
\end{frame}
}
% Let's get started
\begin{document}
\begin{frame}
\titlepage
\end{frame}
\section{Introduction}
\subsection{The general problem}
\begin{frame}{The general problem} %{Optional Subtitle}
\begin{itemize}
\item {
Radiation-induced toxicities.
}
\item {
Large-scale SNPs.
}
\end{itemize}
\end{frame}
\subsection{Thesis objective}
% You can reveal the parts of a slide one at a time
% with the \pause command:
\begin{frame}{Thesis objective}
\begin{itemize}
\item {
developing a prediction model for predicting radiation-induced normal tissue toxicities based on a large scale of SNPs.
% \pause % The slide will pause after showing the first item
}
\item {
With this model, a subset of most influential SNPs will be selected. A clinician can examine only a subset of SNPs from an individual patient after being treated with radiotherapy to predict the risk of developing toxicity for this patient.
}
\end{itemize}
\end{frame}
% ============dataset================================
\subsection{The dataset}
\begin{frame}{The dataset }%{Optional Subtitle}
\begin{itemize}
\item {
The endpoints.
}
\item {
Large-scale SNPs.
}
\end{itemize}
\label{tab2}
\hfill \break
\end{frame}
% \section{Data description}
% % \subsection{Another Subsection}
\section{Data and methods}
\subsection{The dataset}
\subsection{Modelling}
\subsection{Estimation of the effect size $\beta_i$}
\subsection{SNPs selection}
\subsection{Evaluation of prediction performance}
\section{Simulation study}
\subsection{Simulation scenarios}
% \subsection{Data generation}
\subsection{Simulation results}
\section{Real data application}
\section{Discussion and conclusion}
\begin{frame}{Blocks}
\begin{block}{Block Title}
You can also highlight sections of your presentation in a block, with it's own title
\end{block}
\begin{theorem}
There are separate environments for theorems, examples, definitions and proofs.
\end{theorem}
\begin{example}
Here is an example of an example block.
\end{example}
\end{frame}
% Placing a * after \section means it will not show in the
% outline or table of contents.
\section*{Summary}
\begin{frame}{Summary}
\begin{itemize}
\item
The \alert{first main message} of your talk in one or two lines.
\item
The \alert{second main message} of your talk in one or two lines.
\item
Perhaps a \alert{third message}, but not more than that.
\end{itemize}
\begin{itemize}
\item
Outlook
\begin{itemize}
\item
Something you haven't solved.
\item
Something else you haven't solved.
\end{itemize}
\end{itemize}
\end{frame}
% All of the following is optional and typically not needed.
\appendix
\section<presentation>*{\appendixname}
\subsection<presentation>*{For Further Reading}
\begin{frame}[allowframebreaks]
\frametitle<presentation>{For Further Reading}
\begin{thebibliography}{10}
\beamertemplatebookbibitems
% Start with overview books.
\bibitem{Author1990}
A.~Author.
\newblock {\em Handbook of Everything}.
\newblock Some Press, 1990.
\beamertemplatearticlebibitems
% Followed by interesting articles. Keep the list short.
\bibitem{Someone2000}
S.~Someone.
\newblock On this and that.
\newblock {\em Journal of This and That}, 2(1):50--100,
2000.
\end{thebibliography}
\end{frame}
\end{document}
Best Answer
Your code does contain the following snippet:
This creates a table of contents (outline) every
\subsection. If you do not want it, remove it. To just have a toc create a simple frame with\tableofcontentsand you're done.