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% model_lda.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.
% Latent Diriclet allocation model
%\beginpgfgraphicnamed{model-lda}
\begin{tikzpicture}[x=1.7cm,y=1.8cm]
% Nodes
\node[obs] (X) {$X$} ; %
\node[latent, above=of X] (T) {$T$} ; %
\node[latent, above=of T] (theta) {$\theta$}; %
\node[const, above=of theta] (atheta) {$\alpha_\theta$};
% Factors
\factor[above=of X] {X-f} {Multi} {} {} ; %
\factor[above=of T] {T-f} {left:Multi} {} {} ; %
\factor[above=of theta] {theta-f} {left:Dir} {} {} ; %
% More nodes
\node[latent, right=of X-f] (phi) {$\phi$}; %
\node[const, above=of phi] (aphi) {$\alpha_\phi$}; %
\factor[above=of phi] {phi-f} {right:Dir} {} {} ; %
\factoredge {theta} {T-f} {T} ; %
\factoredge {atheta} {theta-f} {theta} ; %
\factoredge {phi} {X-f} {X} ; %
\factoredge {aphi} {phi-f} {phi} ; %
\gate {X-gate} {(X-f)(X-f-caption)} {T}
\plate {plate1} { %
(X)(X-gate) %
(T)(T-f)(T-f-caption) %
} {$\forall 1 \leq i \leq n_d$}; %
\plate {} { %
(plate1) %
(theta)(theta-f)(theta-f-caption) %
} {$\forall d \in \mathcal{D}$} ; %
\plate {} { %
(phi)(phi-f)(phi-f-caption) %
} {$\forall t \in \mathcal{T}$} ; %
\end{tikzpicture}
%\endpgfgraphicnamed
%%% Local Variables:
%%% mode: tex-pdf
%%% TeX-master: "example"
%%% End:
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