-\documentclass{ita}
+
+\documentclass[preprint,review,12pt]{elsarticle}
+
\usepackage{graphicx}
\usepackage{caption}
\usepackage{subcaption}
\usepackage{color}
\usepackage{algorithm2e}
\usepackage{epstopdf}
-%\usepackage{ntheorem}
-
\usepackage[utf8]{inputenc}
\usepackage[T1]{fontenc}
\usepackage[english]{babel}
-\usepackage{amsmath,amssymb,latexsym,eufrak,euscript}
+\usepackage{amsmath,amssymb,amsthm,latexsym,eufrak,euscript}
\usepackage{pstricks,pst-node,pst-coil}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\definecolor{bleuclair}{rgb}{0.75,0.75,1.0}
+\newcommand{\danger}{!!}
\newcommand{\ANNOT}[1]{
~\linebreak
\centerline{
- {\Huge{\danger}}
+ {\Huge{$\Rightarrow$}}
\large\fcolorbox{black}{bleuclair}{
\begin{minipage}[h]{.8\linewidth}
#1
\end{minipage}
}
- {\Huge{\danger}}
+ {\Huge{$\Leftarrow$}}
}
}
\newtheorem*{xpl}{Running Example}
+\newtheorem{definition}{Definition}
+\newtheorem{prpstn}{Proposition}
+\newtheorem{thrm}{Theorem}
+\newtheorem{crllr}{Corollary}
+\newtheorem{lmm}{Lemma}
+
+
+
\newcommand{\vectornorm}[1]{\ensuremath{\left|\left|#1\right|\right|_2}}
%\newcommand{\ie}{\textit{i.e.}}
\newcommand{\Nats}[0]{\ensuremath{\mathbb{N}}}
+
+% Some very useful LaTeX packages include:
+% (uncomment the ones you want to load)
+
+
+% *** MISC UTILITY PACKAGES ***
+%
+%\usepackage{ifpdf}
+% Heiko Oberdiek's ifpdf.sty is very useful if you need conditional
+% compilation based on whether the output is pdf or dvi.
+% usage:
+% \ifpdf
+% % pdf code
+% \else
+% % dvi code
+% \fi
+% The latest version of ifpdf.sty can be obtained from:
+% http://www.ctan.org/pkg/ifpdf
+% Also, note that IEEEtran.cls V1.7 and later provides a builtin
+% \ifCLASSINFOpdf conditional that works the same way.
+% When switching from latex to pdflatex and vice-versa, the compiler may
+% have to be run twice to clear warning/error messages.
+
+
+
+
+
+
+% *** CITATION PACKAGES ***
+%
+%\usepackage{cite}
+% cite.sty was written by Donald Arseneau
+% V1.6 and later of IEEEtran pre-defines the format of the cite.sty package
+% \cite{} output to follow that of the IEEE. Loading the cite package will
+% result in citation numbers being automatically sorted and properly
+% "compressed/ranged". e.g., [1], [9], [2], [7], [5], [6] without using
+% cite.sty will become [1], [2], [5]--[7], [9] using cite.sty. cite.sty's
+% \cite will automatically add leading space, if needed. Use cite.sty's
+% noadjust option (cite.sty V3.8 and later) if you want to turn this off
+% such as if a citation ever needs to be enclosed in parenthesis.
+% cite.sty is already installed on most LaTeX systems. Be sure and use
+% version 5.0 (2009-03-20) and later if using hyperref.sty.
+% The latest version can be obtained at:
+% http://www.ctan.org/pkg/cite
+% The documentation is contained in the cite.sty file itself.
+
+
+
+
+
+
+\begin{document}
+%
+% paper title
+% Titles are generally capitalized except for words such as a, an, and, as,
+% at, but, by, for, in, nor, of, on, or, the, to and up, which are usually
+% not capitalized unless they are the first or last word of the title.
+% Linebreaks \\ can be used within to get better formatting as desired.
+% Do not put math or special symbols in the title.
\title{Random Walk in a N-cube Without Hamiltonian Cycle
to Chaotic Pseudorandom Number Generation: Theoretical and Practical
Considerations}
-\begin{document}
+%
+%
+% author names and IEEE memberships
+% note positions of commas and nonbreaking spaces ( ~ ) LaTeX will not break
+% a structure at a ~ so this keeps an author's name from being broken across
+% two lines.
+% use \thanks{} to gain access to the first footnote area
+% a separate \thanks must be used for each paragraph as LaTeX2e's \thanks
+% was not built to handle multiple paragraphs
+%
+\author[label1]{Sylvain Contassot-Vivier}
+\author[label2]{Jean-François Couchot}
+\author[label2]{Christophe Guyeux}
+\author[label2]{Pierre-Cyrille Heam}
+\address[label1]{LORIA, Université de Lorraine, Nancy, France}
+\address[label2]{FEMTO-ST Institute, University of Franche-Comté, Belfort, France}
+
+
+
+% \author{Michael~Shell,~\IEEEmembership{Member,~IEEE,}
+% John~Doe,~\IEEEmembership{Fellow,~OSA,}
+% and~Jane~Doe,~\IEEEmembership{Life~Fellow,~IEEE}% <-this % stops a space
+% \thanks{M. Shell was with the Department
+% of Electrical and Computer Engineering, Georgia Institute of Technology, Atlanta,
+% GA, 30332 USA e-mail: (see http://www.michaelshell.org/contact.html).}% <-this % stops a space
+% \thanks{J. Doe and J. Doe are with Anonymous University.}% <-this % stops a space
+% \thanks{Manuscript received April 19, 2005; revised August 26, 2015.}}
+
+% note the % following the last \IEEEmembership and also \thanks -
+% these prevent an unwanted space from occurring between the last author name
+% and the end of the author line. i.e., if you had this:
+%
+% \author{....lastname \thanks{...} \thanks{...} }
+% ^------------^------------^----Do not want these spaces!
+%
+% a space would be appended to the last name and could cause every name on that
+% line to be shifted left slightly. This is one of those "LaTeX things". For
+% instance, "\textbf{A} \textbf{B}" will typeset as "A B" not "AB". To get
+% "AB" then you have to do: "\textbf{A}\textbf{B}"
+% \thanks is no different in this regard, so shield the last } of each \thanks
+% that ends a line with a % and do not let a space in before the next \thanks.
+% Spaces after \IEEEmembership other than the last one are OK (and needed) as
+% you are supposed to have spaces between the names. For what it is worth,
+% this is a minor point as most people would not even notice if the said evil
+% space somehow managed to creep in.
+
+
+
+% The only time the second header will appear is for the odd numbered pages
+% after the title page when using the twoside option.
+%
+% *** Note that you probably will NOT want to include the author's ***
+% *** name in the headers of peer review papers. ***
+% You can use \ifCLASSOPTIONpeerreview for conditional compilation here if
+% you desire.
+
+
+
+
+% If you want to put a publisher's ID mark on the page you can do it like
+% this:
+%\IEEEpubid{0000--0000/00\$00.00~\copyright~2015 IEEE}
+% Remember, if you use this you must call \IEEEpubidadjcol in the second
+% column for its text to clear the IEEEpubid mark.
+
+
-\author{Sylvain Contassot-Vivier, Jean-François Couchot, Christophe Guyeux, Pierre-Cyrille Heam}
-\address{LORIA, Université de Lorraine, Nancy, France\\
-FEMTO-ST Institute, University of Franche-Comté, Belfort, France}
+% use for special paper notices
+%\IEEEspecialpapernotice{(Invited Paper)}
-\keywords{Pseudorandom Number Generator, Theory of Chaos, Markov Matrice, Hamiltonian Path, Stopping Time, Statistical Test}
-\subjclass{34C28, 37A25,11K45}
+
+
+% make the title area
+%\maketitle
+
+% As a general rule, do not put math, special symbols or citations
+% in the abstract or keywords.
+
+
+% \begin{abstract}
+% This paper is dedicated to the design of chaotic random generators
+% and extends previous works proposed by some of the authors.
+% We propose a theoretical framework proving both the chaotic properties and
+% that the limit distribution is uniform.
+% A theoretical bound on the stationary time is given and
+% practical experiments show that the generators successfully pass
+% the classical statistical tests.
+% \end{abstract}
\begin{abstract}
-This paper is dedicated to the design of chaotic random generators
-and extends previous works proposed by some of the authors.
-We propose a theoretical framework proving both the chaotic properties and
-that the limit distribution is uniform.
-A theoretical bound on the stationary time is given and
-practical experiments show that the generators successfully pass
-the classical statistical tests.
+Designing a pseudorandom number generator (PRNG) is a hard and complex task.
+Many recent works have considered chaotic functions as the basis of built
+PRNGs:
+the quality of the output would be an obvious consequence of some chaos
+properties.
+However, there is no direct reasoning that goes from chaotic functions to
+uniform distribution of the output.
+Moreover, it is not clear that embedding such kind of functions into a PRNG
+allows to get a chaotic output, which could be required for simulating
+some chaotic behaviors.
+
+In a previous work, some of the authors have proposed the idea of walking
+into a $\mathsf{N}$-cube where a balanced Hamiltonian cycle has been
+removed as the basis of a chaotic PRNG. In this article, all the difficult
+issues observed in the previous work have been tackled. The chaotic behavior
+of the whole PRNG is proven. The construction of the balanced Hamiltonian
+cycle is theoretically and practically solved. An upper bound of the
+expected length of the walk to obtain a uniform distribution is calculated.
+Finally practical experiments show that the generators successfully pass the
+classical statistical tests.
\end{abstract}
+
+
+
+% Note that keywords are not normally used for peerreview papers.
+% \begin{IEEEkeywords}
+% IEEE, IEEEtran, journal, \LaTeX, paper, template.
+% \end{IEEEkeywords}
+
+
+
+
+
+
+% For peer review papers, you can put extra information on the cover
+% page as needed:
+% \ifCLASSOPTIONpeerreview
+% \begin{center} \bfseries EDICS Category: 3-BBND \end{center}
+% \fi
+%
+% For peerreview papers, this IEEEtran command inserts a page break and
+% creates the second title. It will be ignored for other modes.
\maketitle
+
\section{Introduction}
\input{intro}
\input{hamilton}
-\section{Stopping Time}\label{sec:hypercube}
+\section{Mixing Time}\label{sec:hypercube}
\input{stopping}
\section{Experiments}\label{sec:prng}
%\acknowledgements{...}
-\bibliographystyle{alpha}
+\section*{Acknowledgements}
+This work is partially funded by the Labex ACTION program (contract ANR-11-LABX-01-01).
+Computations presented in this article were realised on the supercomputing
+facilities provided by the M\'esocentre de calcul de Franche-Comt\'e.
+
+
+
+
+\bibliographystyle{elsarticle-num}
\bibliography{biblio}
-\end{document}
-%%% Local Variables:
-%%% mode: latex
-%%% ispell-dictionary: "american"
-%%% mode: flyspell
-%%% End:
+%\section{Introduction}
+% The very first letter is a 2 line initial drop letter followed
+% by the rest of the first word in caps.
+%
+% form to use if the first word consists of a single letter:
+% \IEEEPARstart{A}{demo} file is ....
+%
+% form to use if you need the single drop letter followed by
+% normal text (unknown if ever used by the IEEE):
+% \IEEEPARstart{A}{}demo file is ....
+%
+% Some journals put the first two words in caps:
+% \IEEEPARstart{T}{his demo} file is ....
+%
+% Here we have the typical use of a "T" for an initial drop letter
+% and "HIS" in caps to complete the first word.
+% \IEEEPARstart{T}{his} demo file is intended to serve as a ``starter file''
+% for IEEE journal papers produced under \LaTeX\ using
+% IEEEtran.cls version 1.8b and later.
+% % You must have at least 2 lines in the paragraph with the drop letter
+% % (should never be an issue)
+% I wish you the best of success.
+
+% \hfill mds
+
+% \hfill August 26, 2015
+
+% \subsection{Subsection Heading Here}
+% Subsection text here.
+
+% % needed in second column of first page if using \IEEEpubid
+% %\IEEEpubidadjcol
+
+% \subsubsection{Subsubsection Heading Here}
+% Subsubsection text here.
+
+
+% % An example of a floating figure using the graphicx package.
+% % Note that \label must occur AFTER (or within) \caption.
+% % For figures, \caption should occur after the \includegraphics.
+% % Note that IEEEtran v1.7 and later has special internal code that
+% % is designed to preserve the operation of \label within \caption
+% % even when the captionsoff option is in effect. However, because
+% % of issues like this, it may be the safest practice to put all your
+% % \label just after \caption rather than within \caption{}.
+% %
+% % Reminder: the "draftcls" or "draftclsnofoot", not "draft", class
+% % option should be used if it is desired that the figures are to be
+% % displayed while in draft mode.
+% %
+% %\begin{figure}[!t]
+% %\centering
+% %\includegraphics[width=2.5in]{myfigure}
+% % where an .eps filename suffix will be assumed under latex,
+% % and a .pdf suffix will be assumed for pdflatex; or what has been declared
+% % via \DeclareGraphicsExtensions.
+% %\caption{Simulation results for the network.}
+% %\label{fig_sim}
+% %\end{figure}
+
+% % Note that the IEEE typically puts floats only at the top, even when this
+% % results in a large percentage of a column being occupied by floats.
+
+
+% % An example of a double column floating figure using two subfigures.
+% % (The subfig.sty package must be loaded for this to work.)
+% % The subfigure \label commands are set within each subfloat command,
+% % and the \label for the overall figure must come after \caption.
+% % \hfil is used as a separator to get equal spacing.
+% % Watch out that the combined width of all the subfigures on a
+% % line do not exceed the text width or a line break will occur.
+% %
+% %\begin{figure*}[!t]
+% %\centering
+% %\subfloat[Case I]{\includegraphics[width=2.5in]{box}%
+% %\label{fig_first_case}}
+% %\hfil
+% %\subfloat[Case II]{\includegraphics[width=2.5in]{box}%
+% %\label{fig_second_case}}
+% %\caption{Simulation results for the network.}
+% %\label{fig_sim}
+% %\end{figure*}
+% %
+% % Note that often IEEE papers with subfigures do not employ subfigure
+% % captions (using the optional argument to \subfloat[]), but instead will
+% % reference/describe all of them (a), (b), etc., within the main caption.
+% % Be aware that for subfig.sty to generate the (a), (b), etc., subfigure
+% % labels, the optional argument to \subfloat must be present. If a
+% % subcaption is not desired, just leave its contents blank,
+% % e.g., \subfloat[].
+
+
+% % An example of a floating table. Note that, for IEEE style tables, the
+% % \caption command should come BEFORE the table and, given that table
+% % captions serve much like titles, are usually capitalized except for words
+% % such as a, an, and, as, at, but, by, for, in, nor, of, on, or, the, to
+% % and up, which are usually not capitalized unless they are the first or
+% % last word of the caption. Table text will default to \footnotesize as
+% % the IEEE normally uses this smaller font for tables.
+% % The \label must come after \caption as always.
+% %
+% %\begin{table}[!t]
+% %% increase table row spacing, adjust to taste
+% %\renewcommand{\arraystretch}{1.3}
+% % if using array.sty, it might be a good idea to tweak the value of
+% % \extrarowheight as needed to properly center the text within the cells
+% %\caption{An Example of a Table}
+% %\label{table_example}
+% %\centering
+% %% Some packages, such as MDW tools, offer better commands for making tables
+% %% than the plain LaTeX2e tabular which is used here.
+% %\begin{tabular}{|c||c|}
+% %\hline
+% %One & Two\\
+% %\hline
+% %Three & Four\\
+% %\hline
+% %\end{tabular}
+% %\end{table}
+
+
+% % Note that the IEEE does not put floats in the very first column
+% % - or typically anywhere on the first page for that matter. Also,
+% % in-text middle ("here") positioning is typically not used, but it
+% % is allowed and encouraged for Computer Society conferences (but
+% % not Computer Society journals). Most IEEE journals/conferences use
+% % top floats exclusively.
+% % Note that, LaTeX2e, unlike IEEE journals/conferences, places
+% % footnotes above bottom floats. This can be corrected via the
+% % \fnbelowfloat command of the stfloats package.
+
+
+
+
+% \section{Conclusion}
+% The conclusion goes here.
+
+
+
+
+
+% % if have a single appendix:
+% %\appendix[Proof of the Zonklar Equations]
+% % or
+% %\appendix % for no appendix heading
+% % do not use \section anymore after \appendix, only \section*
+% % is possibly needed
+
+% % use appendices with more than one appendix
+% % then use \section to start each appendix
+% % you must declare a \section before using any
+% % \subsection or using \label (\appendices by itself
+% % starts a section numbered zero.)
+% %
+
+
+% \appendices
+% \section{Proof of the First Zonklar Equation}
+% Appendix one text goes here.
+
+% % you can choose not to have a title for an appendix
+% % if you want by leaving the argument blank
+% \section{}
+% Appendix two text goes here.
+
+
+% % use section* for acknowledgment
+% \section*{Acknowledgment}
+
+
+% The authors would like to thank...
+
+
+% Can use something like this to put references on a page
+% by themselves when using endfloat and the captionsoff option.
+
+
+
+% trigger a \newpage just before the given reference
+% number - used to balance the columns on the last page
+% adjust value as needed - may need to be readjusted if
+% the document is modified later
+%\IEEEtriggeratref{8}
+% The "triggered" command can be changed if desired:
+%\IEEEtriggercmd{\enlargethispage{-5in}}
+
+% references section
+
+% can use a bibliography generated by BibTeX as a .bbl file
+% BibTeX documentation can be easily obtained at:
+% http://mirror.ctan.org/biblio/bibtex/contrib/doc/
+% The IEEEtran BibTeX style support page is at:
+% http://www.michaelshell.org/tex/ieeetran/bibtex/
+%\bibliographystyle{IEEEtran}
+% argument is your BibTeX string definitions and bibliography database(s)
+%\bibliography{IEEEabrv,../bib/paper}
+%
+% <OR> manually copy in the resultant .bbl file
+% set second argument of \begin to the number of references
+% (used to reserve space for the reference number labels box)
+% \begin{thebibliography}{1}
+
+% \bibitem{IEEEhowto:kopka}
+% H.~Kopka and P.~W. Daly, \emph{A Guide to \LaTeX}, 3rd~ed.\hskip 1em plus
+% 0.5em minus 0.4em\relax Harlow, England: Addison-Wesley, 1999.
+
+% \end{thebibliography}
+
+% biography section
+%
+% If you have an EPS/PDF photo (graphicx package needed) extra braces are
+% needed around the contents of the optional argument to biography to prevent
+% the LaTeX parser from getting confused when it sees the complicated
+% \includegraphics command within an optional argument. (You could create
+% your own custom macro containing the \includegraphics command to make things
+% simpler here.)
+%\begin{IEEEbiography}[{\includegraphics[width=1in,height=1.25in,clip,keepaspectratio]{mshell}}]{Michael Shell}
+% or if you just want to reserve a space for a photo:
+
+% \begin{IEEEbiography}{Michael Shell}
+% Biography text here.
+% \end{IEEEbiography}
+
+% % if you will not have a photo at all:
+% \begin{IEEEbiographynophoto}{John Doe}
+% Biography text here.
+% \end{IEEEbiographynophoto}
+
+% % insert where needed to balance the two columns on the last page with
+% % biographies
+% %\newpage
+
+% \begin{IEEEbiographynophoto}{Jane Doe}
+% Biography text here.
+% \end{IEEEbiographynophoto}
+
+% You can push biographies down or up by placing
+% a \vfill before or after them. The appropriate
+% use of \vfill depends on what kind of text is
+% on the last page and whether or not the columns
+% are being equalized.
+
+%\vfill
+
+% Can be used to pull up biographies so that the bottom of the last one
+% is flush with the other column.
+%\enlargethispage{-5in}
+
+
+
+% that's all folks
+\end{document}
