
\section{Data Representation}

\begin{itemize}
\item The CNN produces a vector representation of the spectrograms for each audio file.
\item The EDA \cite{Ding2015451} estimates a probabilistic model from a sample to model the user profiles from the user ratings dataset and vector representation. 
\end{itemize}

%$$
%\label{eq:pgmmx}
%p(x)=\sum^{K}_{k=1}p(x|k)P(k)
%$$
\begin{center}
	\resizebox*{0.85\columnwidth}{!}{\includegraphics{images/diagram_cnn.eps}}\\
	{\large \textbf{Fig. 2.} Architecture of a CNN for music genre representation}\\[2ex]
	\resizebox*{0.6\columnwidth}{!}{\includegraphics{images/flowchart_eda.eps}}\\
	{\large \textbf{Fig. 3.} General flowchart for an EDA}\\
	%\begin{tabular}{c@{ }c}
	%\resizebox*{0.45\columnwidth}{!}{\includegraphics{images/diagram_hybrid_music_recommender.eps}} &
	%\resizebox*{0.45\columnwidth}{!}{\includegraphics{images/fruit/plums.eps}} \\
	%Bananas & Plums \\
	%\end{tabular}
\end{center}