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\author{
  Jean-Fran\c{c}cois COuchot, \and 
  Ahmed Mostefaoui\\
  FEMTO-ST Institute, UMR 6174 CNRS\\
  DISC Department, University of Franche-Comt\'{e}\\
  Belfort, France\\
  \{jean-francois.couchot, ahmed.mostefaoui\}@univ-fcomte.fr\\
}





\title{ }




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\begin{abstract}

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\begin{IEEEkeywords}

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\section{Introduction}  
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\section{Basics of Existing Scheme}
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\section{Improving }


\subsection{Convergence Detection} 
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\subsection{A closer look to convexity}
\input{convexity}

\subsection{Directly retrieving the argmin}
\input{argmin}




\subsection{Fault-Tolerance Considerations}




\section{Discussion and Future Work}
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