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1
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2 \section{Results}
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3
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4 \begin{itemize}
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5 \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.
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6 \item For each song in the test set, we look up if the song is included or not
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7 in the produced top-N recommendations.
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8 %\item Examples of classification results are shown below:
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9 \end{itemize}
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10
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11 \begin{center}
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12 \resizebox*{1.0\columnwidth}{!}{
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13
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14 \begin{tabular}{c| c| c| c| c} % centered columns (4 columns)
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15 \hline\hline %inserts double horizontal lines
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16 Recommender & Precision & Recall & F1 & Accuracy \\ [0.5ex] % inserts table
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17 %heading
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18 \hline % inserts single horizontal line
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19 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
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20 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} \\
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21 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
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22 \hline %inserts single line
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23 \end{tabular}
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24
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25 }
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26 \end{center}
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27 %\begin{center}
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28 %\begin{tabular}{c@{ }c@{ }c@{ }c@{ }c@{ }c@{ }c}
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29 %bananas &
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30 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} &
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31 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} &
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32 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} &
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33 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} &
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34 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} &
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35 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} \\
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36 %plums &
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37 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} &
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38 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/bananas2.eps}} &
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39 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} &
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40 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} &
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41 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} &
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42 %\resizebox*{0.12\columnwidth}{!}{\includegraphics{images/fruit/plums2.eps}} \\
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43 %\end{tabular}
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44 %\end{center}
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