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LaTeX-examples/presentations/Datamining-Proseminar/Hauptpresentation/LaTeX/Ueberblick.tex
2014-01-19 21:48:33 +01:00

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\subsection{Überblick}
\pgfdeclarelayer{background}
\pgfsetlayers{background,main}
\tikzstyle{vertex}=[circle,fill=black!25,minimum size=20pt,inner sep=0pt]
\tikzstyle{selected vertex} = [vertex, fill=red!24]
\tikzstyle{blue vertex} = [vertex, fill=blue!24]
\tikzstyle{edge} = [draw,thick,-]
\tikzstyle{weight} = [font=\small]
\tikzstyle{selected edge} = [draw,line width=5pt,-,red!50]
\tikzstyle{ignored edge} = [draw,line width=5pt,-,black!20]
\begin{frame}{Random Walk}
\begin{figure}
\begin{tikzpicture}[->,scale=1.8, auto,swap]
% Draw the vertices. First you define a list.
\foreach \pos/\name/\ltext in {{(0,0)/a/}, {(0,2)/b/b}, {(1,2)/c/},
{(1,0)/d/}, {(2,1)/e/e}, {(3,1)/f/b},
{(4,2)/g/a}, {(5,2)/h/a}, {(4,0)/i/a},
{(5,0)/j/}}
\node[draw,circle,fill=white] (\name) at \pos {$\ltext$};
\node[draw,circle,red,fill=red] (e) at (2,1) {$e$};
% Connect vertices with edges and draw weights
\foreach \source/ \dest /\pos in {a/b/, b/c/, c/d/, d/a/,
c/e/bend left, d/e/, e/c/,
e/f/, f/g/, f/i/,
g/f/bend right, i/f/bend left,
g/h/, h/j/, j/i/, i/g/}
\path (\source) edge [\pos] node {} (\dest);
\foreach \fr / \number in {1/,
2/b=1,
3/b=1\, a=1,
4/b=1\, a=2,
5/b=2\, a=2,
6/b=2\, a=3,
7/b=2\, a=4
}
\node<\fr->[fill=white] (Tlabel) at (2,0) {$\number$};
% Start animating the edge selection.
% For convenience we use a background layer to
% highlight edges. This way we don't have to worry about
% the highlighting covering weight labels.
\begin{pgfonlayer}{background}
\foreach \source / \dest / \fr / \colorf /\pos in {e/f/2/red/,f/g/3/red/,g/h/4/red/, e/f/5/blue/, f/i/6/blue/, i/g/7/blue/,e/c/8/green/,c/d/9/green/, d/a/10/green/}
\path<\fr->[selected edge, \colorf!20] (\source.center) edge
[\pos] node {} (\dest.center);
\end{pgfonlayer}
\end{tikzpicture}
\end{figure}
Klassifizieren des roten Knotens:
\begin{itemize}
\item Zählen von Knotenbeschriftungen in Random Walks
\item 4 Random Walks
\item 3 Sprünge pro Random Walk
\item<11> $4 \cdot a$, $2 \cdot b \Rightarrow$ Rot mit $a$ klassifizieren
\end{itemize}
\end{frame}
\begin{frame}{Wortknoten}
\begin{itemize}
\item<1-> Neben Struktur können Texte genutzt werden
\item<2-> Einschränkung: Effizienz!
\item<3-> Wünschenswert: Wenig weiterer Programmieraufwand
\item<4-> Idee: Graph erweitern
\begin{itemize}
\item<5-> Texte als Wortmengen
\item<6-> Strukturknoten verweisen auf Wortknoten
\item<7-> vice versa
\end{itemize}
\end{itemize}
\end{frame}
\framedgraphic{Erweiterter, bipartiter Graph}{../images/graph-content-and-structure.pdf}