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+% model_pca2.tex
+%
+% Copyright (C) 2010,2011 Laura Dietz
+% Copyright (C) 2012 Jaakko Luttinen
+%
+% This file may be distributed and/or modified
+%
+% 1. under the LaTeX Project Public License and/or
+% 2. under the GNU General Public License.
+%
+% See the files LICENSE_LPPL and LICENSE_GPL for more details.
+
+% PCA model
+
+%\beginpgfgraphicnamed{model-pca}
+\begin{tikzpicture}
+
+ % Define nodes
+
+ % Y
+ \node[obs] (y) {$y$}; %
+ \factor[above=of y] {y-f} {left:$\mathcal{N}$} {} {} ; %
+
+ % W and X
+ \node[det, above=of y] (dot) {dot} ; %
+ \node[latent, above left=1.2 of dot] (w) {$\mathbf{w}$}; %
+ \node[latent, above right=1.2 of dot] (x) {$\mathbf{x}$}; %
+
+ % W hyperparameters
+ \node[const, above=1.2 of w, xshift=-0.5cm] (mw) {$\mu_w$} ; %
+ \node[const, above=1.2 of w, xshift=0.5cm] (aw) {$\alpha_w$} ; %
+
+ % X hyperparameters
+ \node[const, above=1.2 of x, xshift=-0.5cm] (mx) {$\mu_x$} ; %
+ \node[const, above=1.2 of x, xshift=0.5cm] (ax) {$\alpha_x$} ; %
+
+ % noise
+ \node[latent, right=2.5cm of y-f] (t) {$\tau$}; %
+ \node[const, above=of t, xshift=-0.5cm] (at) {$\alpha_\tau$} ; %
+ \node[const, above=of t, xshift=0.5cm] (bt) {$\beta_\tau$} ; %
+
+ % Factors
+ \factor[above=of w] {w-f} {left:$\mathcal{N}$} {mw,aw} {w} ; %
+ \factor[above=of x] {x-f} {left:$\mathcal{N}$} {mx,ax} {x} ; %
+ \factor[above=of t] {t-f} {left:$\mathcal{G}$} {at,bt} {t} ; %
+ \factoredge {dot,t} {y-f} {y} ; %
+
+ % Connect w and x to the dot node
+ \edge[-] {w,x} {dot} ;
+
+ % Plates
+ \plate {yx} { %
+ (y)(y-f)(y-f-caption) %
+ (x)(x-f)(x-f-caption) %
+ (dot) %
+ } {$N$} ;
+ \plate {} {%
+ (y)(y-f)(y-f-caption) %
+ (w)(w-f)(w-f-caption) %
+ (dot) %
+ (yx.north west)(yx.south west) %
+ } {$M$} ;
+
+\end{tikzpicture}
+%\endpgfgraphicnamed
+
+%%% Local Variables:
+%%% mode: tex-pdf
+%%% TeX-master: "example"
+%%% End:
+