ijcai20.sty

\typeout{Conference Style, version of November 2018}

% All bug reports should be directed to proceedings@ijcai.org
% The following comments are from the original ijcai97.sty

% The current two-column conference style.
% Heavily adapted from the IJCAI-89 original style.
% Fixes from various people incorporated up to the IJCAI-95 style.
% Some major changes for the IJCAI-2018 edition

% To use, place in a file called conference.sty, or whatever your conference
% is called, in the TeX search path.  (Placing it in the same directory as
% the paper should also work.) 

% Prepared by Peter F. Patel-Schneider, 
% liberally using the ideas of
% other style hackers, including Barbara Beeton.
% This style is NOT guaranteed to work.  It is provided in the hope
% that it will make the preparation of papers easier.
%
% The preparation of this file was supported by Schlumberger Palo Alto
% Research, AT\&T Bell Laboratories, AAAI, and Morgan Kaufmann Publishers.
%
% \pubnote added by J. Scott Penberthy

% These instructions can be modified and used in other conferences as long
% as credit to the authors and supporting agencies is retained, this notice
% is not changed, and further modification or reuse is not restricted.
%
% If you are organizing a conference, and want to use this file, you should
% appoint a contact person to handle any problems!
%
% If you are using this file for the preparation of papers for a
% conference that supplied you with this file, you should contact the
% organizers of the conference if you have any problems.  They should have
% much more information than I have.

% There are undoubtably bugs in this style.  If you make bug fixes,
% improvements, etc.  please let us know at proceedings@ijcai.org.

% NOTE:  Some laser printers have a serious problem printing TeX output.
% These printing devices, commonly known as ``write-white'' laser
% printers, tend to make characters too light.  To get around this
% problem, a darker set of fonts must be created for these devices.

% Physical page layout
\twocolumn \flushbottom \sloppy
% Note that TeX has built-in 1-inch top and left margins.
\setlength\topmargin{-0.25in} 
\setlength\oddsidemargin{-0.25in}
\setlength\evensidemargin{-0.25in}
\setlength\textheight{9.0in}
\setlength\textwidth{7.0in}
\setlength\columnsep{0.25in}  

% No pages numbers or other headers or footers
\setlength\headheight{0pt}   \setlength\headsep{0pt}
%\setlength\footheight{0pt}   \setlength\footskip{0pt}
\thispagestyle{empty}        \pagestyle{empty}

% jsp added:
\def\pubnote#1{\thispagestyle{myheadings}
\markboth{#1}{#1}
\def\thepage{}
}

% Less leading in most fonts (due to the narrow columns)
% The choices were between 1-pt and 1.5-pt leading
% \def\@normalsize{\@setsize\normalsize{11pt}\xpt\@xpt} % 10 point on 11
% \def\small{\@setsize\small{10pt}\ixpt\@ixpt}          % 9 point on 10
% \def\footnotesize{\@setsize\footnotesize{10pt}\ixpt\@ixpt} % 9 point on 10
% \def\scriptsize{\@setsize\scriptsize{8pt}\viipt\@viipt}       % 7 point on 8
% \def\tiny{\@setsize\tiny{7pt}\vipt\@vipt}             % 6 point on 7
% \def\large{\@setsize\large{12pt}\xipt\@xipt}          % 11 point on 12
% \def\Large{\@setsize\Large{14pt}\xiipt\@xiipt}                % 12 point on 14
% \def\LARGE{\@setsize\LARGE{16pt}\xivpt\@xivpt}                % 14 point on 16
% \def\huge{\@setsize\huge{20pt}\xviipt\@xviipt}                % 17 point on 20
% \def\Huge{\@setsize\Huge{23pt}\xxpt\@xxpt}            % 20 point on 23

% latex2e compatibility mode hack - kek@cs.brown.edu 11/10/98
\def\@normalsize{\@setsize\normalsize{11pt}\xpt\@xpt}   % 10 point on 11
\def\normalsize{\@setsize\normalsize{11pt}\xpt\@xpt}   % 10 point on 11
\def\small{\@setsize\small{10pt}\ixpt\@ixpt}            % 9 point on 10
\def\footnotesize{\@setsize\footnotesize{10pt}\ixpt\@ixpt} % 9 point on 10
\def\scriptsize{\@setsize\scriptsize{8pt}\viipt\@viipt} % 7 point on 8
\def\tiny{\@setsize\tiny{7pt}\vipt\@vipt}               % 6 point on 7
\def\large{\@setsize\large{12pt}\xipt\@xipt}            % 11 point on 12
\def\Large{\@setsize\Large{14pt}\xiipt\@xiipt}          % 12 point on 14
\def\LARGE{\@setsize\LARGE{16pt}\xivpt\@xivpt}          % 14 point on 16
\def\huge{\@setsize\huge{20pt}\xviipt\@xviipt}          % 17 point on 20
\def\Huge{\@setsize\Huge{23pt}\xxpt\@xxpt}              % 20 point on 23


% Paragraphs
\parindent 1em
\parskip 0pt plus 1pt

% Title stuff, taken from deproc.
\newlength\titlepad \setlength\titlepad{0in}
\newlength\titlebox \setlength\titlebox{2.25in}
\def\maketitle{\par
 \begingroup % to make the footnote style local to the title
   \def\thefootnote{\fnsymbol{footnote}}
   \def\@makefnmark{$^{\@thefnmark}$}
   \twocolumn[\@maketitle] \@thanks
 \endgroup
 \setcounter{footnote}{0}
 \let\maketitle\relax \let\@maketitle\relax
 \gdef\@thanks{}\gdef\@author{}\gdef\@title{}\let\thanks\relax}%
%
\def\@maketitle{%
    \newsavebox{\titlearea}
    \sbox{\titlearea}{
        \let\footnote\thanks\relax
        \vbox{
            \hsize\textwidth \linewidth\hsize%
            \vskip 0.5in%
            \centering%
            {\LARGE\bf \@title \par}%
            \vskip 0.1in%
            {%
                \def\and{\unskip\thinspace{\rm ,}\enspace}%
                \def\And{\unskip\enspace{\rm and}\enspace}%
                \def\affiliations{%
                    \egroup\par\Large\bgroup\rm%
                }%
                \def\emails{%
                    \egroup\par\Large\bgroup\rm%
                }%
                \bgroup\Large\bf\@author\egroup%%
            }%
            \vskip 0.2in%
        }
    }

    \newlength\actualheight
    \settoheight{\actualheight}{\usebox{\titlearea}}
       
    \ifdim\actualheight>\titlebox
        \setlength{\titlebox}{\actualheight}
    \fi
    %\setlength{\titlepad}{\dimexpr\titlepad+\titlepad\relax}
       
    \setcounter{footnote}{0}
    \vbox to \titlebox {
        \def\thanks##1{\footnotemark}\relax
        \hsize\textwidth \linewidth\hsize%
            \vskip 0.5in%
            \centering%
            {\LARGE\bf \@title \par}%
            \vskip 0.2in plus 4fil minus 0.1in%
            {%
                \def\and{\unskip\thinspace{\rm ,}\enspace}%
                \def\And{\unskip\enspace{\rm and}\enspace}%
                \def\affiliations{
                    \egroup%
                    \vskip 0.05in minus 0.05in%
                    \par\bgroup\Large\rm%
                }
                \def\emails{
                    \egroup%
                    \vskip 0.05in minus 0.05in%
                    \par\bgroup\Large\rm%
                }
                \bgroup\Large\bf\@author\egroup%
            }%
            \vskip 0.3in plus 8fil minus 0.1in
    }
}
\renewenvironment{abstract}{\centerline{\Large\bf
Abstract}\vspace{0.5ex}\begin{quote}}{\par\end{quote}\vskip 1ex}

% Sections with less space
\def\section{\@startsection{section}{1}{\z@}{-10pt plus
    -3pt minus -2pt}{4pt plus 2pt minus 1pt}{\Large\bf\raggedright}}
\def\subsection{\@startsection{subsection}{2}{\z@}{-8pt plus
    -2pt minus -2pt}{3pt plus 2pt minus 1pt}{\large\bf\raggedright}}
\def\subsubsection{\@startsection{subsubsection}{3}{\z@}{-6pt plus
   -2pt minus -1pt}{1pt plus 1pt minus 1pt}{\normalsize\bf\raggedright}}
\renewcommand\paragraph{\@startsection{paragraph}{4}{\z@}{-4pt plus
   -2pt minus -1pt}{-1em}{\normalsize\bf}}
\setcounter{secnumdepth}{2} % Don't number subsubsections

% Footnotes
\footnotesep 6.65pt \skip\footins 9pt plus 4pt minus 2pt
\def\footnoterule{\kern-3pt \hrule width 5pc \kern 2.6pt }
\setcounter{footnote}{0}

% Illustrations (floats)
\floatsep 12pt plus 2pt minus 2pt
\textfloatsep 16pt plus 2pt minus 4pt
\intextsep 12pt plus 2pt minus 2pt
\dblfloatsep 12pt plus 2pt minus 2pt
\dbltextfloatsep 18pt plus 2pt minus 4pt

% Displays
\abovedisplayskip 7pt plus2pt minus5pt%
\belowdisplayskip \abovedisplayskip
\abovedisplayshortskip  0pt plus3pt%   
\belowdisplayshortskip  4pt plus3pt minus3pt%

% Lists
\leftmargini 2em
\leftmarginii 2em
\leftmarginiii 1em 
\leftmarginiv 0.5em
\leftmarginv 0.5em 
\leftmarginvi 0.5em

\leftmargin\leftmargini
\labelsep 5pt
\labelwidth\leftmargini\advance\labelwidth-\labelsep

\def\@listI{\leftmargin\leftmargini 
\parsep 2pt plus 1pt minus 0.5pt%
\topsep 4pt plus 1pt minus 2pt%
\itemsep 2pt plus 1pt minus 0.5pt%
\partopsep 1pt plus 0.5pt minus 0.5pt}

\let\@listi\@listI
\@listi 

\def\@listii{\leftmargin\leftmarginii
   \labelwidth\leftmarginii\advance\labelwidth-\labelsep
   \parsep 1pt plus 0.5pt minus 0.5pt
   \topsep 2pt plus 1pt minus 0.5pt
   \itemsep \parsep}
\def\@listiii{\leftmargin\leftmarginiii
    \labelwidth\leftmarginiii\advance\labelwidth-\labelsep
    \parsep 0pt plus 1pt
    \partopsep 0.5pt plus 0pt minus 0.5pt
    \topsep 1pt plus 0.5pt minus 0.5pt 
    \itemsep \topsep}
\def\@listiv{\leftmargin\leftmarginiv
     \labelwidth\leftmarginiv\advance\labelwidth-\labelsep}
\def\@listv{\leftmargin\leftmarginv
     \labelwidth\leftmarginv\advance\labelwidth-\labelsep}
\def\@listvi{\leftmargin\leftmarginvi
     \labelwidth\leftmarginvi\advance\labelwidth-\labelsep}

% We're never going to need a table of contents, so just flush it to
% save space --- suggested by drstrip@sandia-2
%\def\addcontentsline#1#2#3{}


%%%% named.sty

\typeout{Named Citation Style, version of 30 November 1994}

% This file implements citations for the ``named'' bibliography style.
%  Place it in a file called named.sty in the TeX search path.  (Placing it
% in the same directory as the LaTeX document should also work.)

% Prepared by Peter F. Patel-Schneider, with the assistance of several,
% since forgotten, LaTeX hackers.
% This style is NOT guaranteed to work.  It is provided in the hope
% that it will make the preparation of papers easier.
%
% There are undoubtably bugs in this style.  If you make bug fixes,
% improvements, etc.  please let me know.  My e-mail address is:
%       pfps@research.att.com

% The preparation of this file was supported by Schlumberger Palo Alto
% Research and AT\&T Bell Laboratories.

% This file can be modified and used in other conferences as long
% as credit to the authors and supporting agencies is retained, this notice
% is not changed, and further modification or reuse is not restricted.

% The ``named'' bibliography style creates citations with labels like
%       \citeauthoryear{author-info}{year}
% these labels are processed by the following commands:
%       \cite{keylist}
%               which produces citations with both author and year,
%               enclosed in square brackets
%       \shortcite{keylist}
%               which produces citations with year only,
%               enclosed in square brackets
%       \citeauthor{key}
%               which produces the author information only
%       \citeyear{key}
%               which produces the year information only

\def\leftcite{\@up[}\def\rightcite{\@up]}

\def\cite{\def\citeauthoryear##1##2{\def\@thisauthor{##1}%
             \ifx \@lastauthor \@thisauthor \relax \else##1, \fi ##2}\@icite}
\def\shortcite{\def\citeauthoryear##1##2{##2}\@icite}

\def\citeauthor{\def\citeauthoryear##1##2{##1}\@nbcite}
\def\citeyear{\def\citeauthoryear##1##2{##2}\@nbcite}

% internal macro for citations with [] and with breaks between citations
% used in \cite and \shortcite
\def\@icite{\leavevmode\def\@citeseppen{-1000}%
 \def\@cite##1##2{\leftcite\nobreak\hskip 0in{##1\if@tempswa , ##2\fi}\rightcite}%
 \@ifnextchar [{\@tempswatrue\@citex}{\@tempswafalse\@citex[]}}
% internal macro for citations without [] and with no breaks
% used in \citeauthor and \citeyear
\def\@nbcite{\leavevmode\def\@citeseppen{1000}%
 \def\@cite##1##2{{##1\if@tempswa , ##2\fi}}%
 \@ifnextchar [{\@tempswatrue\@citex}{\@tempswafalse\@citex[]}}

% don't box citations, separate with ; and a space
% also, make the penalty between citations a parameter, 
% it may be a good place to break
\def\@citex[#1]#2{%
  \def\@lastauthor{}\def\@citea{}%
  \@cite{\@for\@citeb:=#2\do
    {\@citea\def\@citea{;\penalty\@citeseppen\ }%
     \if@filesw\immediate\write\@auxout{\string\citation{\@citeb}}\fi
     \@ifundefined{b@\@citeb}{\def\@thisauthor{}{\bf ?}\@warning
       {Citation `\@citeb' on page \thepage \space undefined}}%
     {\csname b@\@citeb\endcsname}\let\@lastauthor\@thisauthor}}{#1}}

% raise the brackets in bibliography labels
\def\@biblabel#1{\def\citeauthoryear##1##2{##1, ##2}\@up{[}#1\@up{]}\hfill}

\def\@up#1{\leavevmode\raise.2ex\hbox{#1}}

% Optional changes

%%%% use parentheses in the reference list and citations
%\def\leftcite{(}\def\rightcite{)}
%\def\@biblabel#1{\def\citeauthoryear##1##2{##1, ##2}(#1)\hfill}

%%%% no key in the reference list
%\def\@lbibitem[#1]#2{\item\if@filesw 
%      { \def\protect##1{\string ##1\space}\immediate
%        \write\@auxout{\string\bibcite{#2}{#1}}}\fi\ignorespaces}
%\def\thebibliography#1{\section*{References\@mkboth
%  {REFERENCES}{REFERENCES}}\list
%  {}{\labelwidth 0pt\leftmargin\labelwidth \itemsep 0.5ex}
%    \def\newblock{\hskip .11em plus .33em minus .07em}
%    \sloppy\clubpenalty4000\widowpenalty4000
%    \sfcode`\.=1000\relax}