\documentclass[11pt]{report}
\input{header}
\pagestyle{empty}
\begin{document}
\psscalebox{1.8}{\arrset{0.5}%
  \pspicture[](-1.1,-1.6)(2,1.6)
  \arrMainVertex(0,0){v}
  \uput{9pt}[170]{0}(0,0){$v$}
  \arrMinorVertex(-1,-1){a}
  \arrMinorVertex(-1,1){b}
  \arrMinorVertex(1,1.5){c}
  \arrMinorVertex(1,-1.5){d}
  \pnode(2,-0.5){x}
  \ncline[linewidth=0.5pt,linecolor=blue]{v}{a}
  \ncline[linewidth=0.5pt,offset=3pt]{->}{a}{v}
  \ncline[linewidth=0.5pt,linecolor=blue]{v}{b}
  \ncline[linewidth=0.5pt,offset=3pt]{->}{b}{v}
  \ncline[linewidth=0.5pt,linecolor=blue]{v}{c}
  \ncline[linewidth=0.5pt,offset=3pt]{->}{c}{v}\Aput[1pt]{$e_{\mathrm{pred}}$}
  \ncline[linewidth=0.5pt,linecolor=blue]{v}{d}
  \ncline[linewidth=0.5pt,offset=3pt]{->}{d}{v}
  \ncline[linewidth=1pt,linecolor=red]{v}{x}%
  \endpspicture
}
\end{document}
