p@36: 
p@36: \section{Results}
p@36: 
p@36: \begin{itemize}
p@36: \item 20\% of song ratings is the test set, the other 80\% is the training set, for each user. The number of users evaluated is 53.
p@36: \item For each song in the  test set, we look up if the song is included or not
p@36: in the produced top-N recommendations.
p@36: %\item Examples of classification results are shown below:
p@36: \end{itemize}
p@36: 
p@36: \begin{center}
p@36: \resizebox*{1.0\columnwidth}{!}{
p@36: 
p@36: 	\begin{tabular}{c| c| c| c| c} % centered columns (4 columns)
p@36: 		\hline\hline %inserts double horizontal lines
p@36: 		Recommender & Precision & Recall & F1 & Accuracy \\ [0.5ex] % inserts table
p@36: 		%heading
p@36: 		\hline % inserts single horizontal line
p@36: 		Content-based (baseline) & 0.275 $\pm$ 0.087 & 0.010 $\pm$ 0.003 & 0.020 $\pm$ 0.007 & 0.681 $\pm$ 0.008 \\ % inserting body of the table
p@36: 		Hybrid (discrete EDA) & \textbf{0.391 $\pm$ 0.182} & \textbf{0.013 $\pm$ 0.007} & \textbf{0.025 $\pm$ 0.013} & \textbf{0.685 $\pm$ 0.009} \\
p@36: 		Hybrid (continuous UMDA) & 0.318 $\pm$ 0.142 & 0.011 $\pm$ 0.005 & 0.021 $\pm$ 0.011 & 0.683 $\pm$ 0.009 \\ [1ex] % [1ex] adds vertical space
p@36: 		\hline %inserts single line
p@36: 	\end{tabular}
p@36: 
p@36: }
p@36: \end{center}
p@36: %\begin{center}
p@36: %\begin{tabular}{c@{ }c@{ }c@{ }c@{ }c@{ }c@{ }c}
p@36: %bananas &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} \\
p@36: %plums &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} &
p@36: %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} \\
p@36: %\end{tabular}
p@36: %\end{center}