muthu conflict

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 In this section we present a mechanism for \EDP.
 
-\paragraph{Prior approach on sub modular optimization, without strategy} 
+\paragraph{Prior approach to submodular optimization problems} 
  Previous works~\cite{nemhauser, sviridenko-submodular,singer-mechanisms,chen, singer-influence}
 %
 %on maximizing submodular functions \cite{nemhauser, sviridenko-submodular} and designing