\begin{frame}
	\begin{block}{Acknowledgements}
		\begin{itemize}\justifying
			%\footnote{xx}  
			\item Andrej Karpathy Video Lecture on  Visualization and Deep Dream$^*$\footnotetext{$^*$\href{https://www.youtube.com/watch?v=ta5fdaqDT3M}{\textcolor{blue}{Visualization, Deep Dream, Neural Style, Adversarial Examples}}}
		\end{itemize}
	\end{block}
\end{frame}
