[Tex/LaTex] Draw autoencoder structure using TikZ

tikz-pgf

I am trying to draw a denoising autoencoder using TikZ. I do not need all the connections between different layers. Something simple as a block representation per layer is enough. I would ideally like to have two big blocks, that have encoder and decoder layers. So far I have only gotten so far..

    \begin{tikzpicture}
    [title/.style={font=\fontsize{18}{18}\color{black!45}},
    En/.style={rectangle, draw, fill=blue!23, rounded corners, minimum height=9em},
    De/.style={rectangle, draw, fill=blue!23, rounded corners, minimum height=9em}]
    % Place nodes
    \node [En, outer sep=8pt, align=center] (s1) at (5,8.3) {In};
    \node [En, outer sep=8pt, align=center] (s2) at (7.65,8.3) {E1};
    \node [En, outer sep=8pt] (s3) at (10.3,8.3) {E2};
    \node [draw=black!50, fit={(s1) (s2) (s3)}] (back) {};

    \node [De, outer sep=8pt, align=center] (s4) at (12.95,8.3) {D1};
    \node [De, outer sep=8pt, align=center] (s5) at (15.6,8.3) {D5};
    \node [De, outer sep=8pt] (s6) at (18.3,8.3) {Ot};
    \node [draw=black!50, fit={(s4) (s5) (s6)}] (back) {};
\end{tikzpicture}

Which gives me

What I want

Apologies, I did this in MS paint.

Best Answer

Just for fun:

\documentclass[tikz, border=2mm]{standalone}
\usetikzlibrary{shapes.misc, fit}

\begin{document}
\begin{tikzpicture}[
    circ/.style={circle, minimum size=1cm, 
        draw=black!70, fill=red!80!black},
    cross/.style={circle, minimum size=1cm,
        draw=black!70, fill=white,
        path picture={\node[cross out, draw, ultra thick, red, minimum size=5mm]{};}},
    H/.style={rounded corners, fill=black!20, row sep=2mm},
    column/.pic={
        \matrix (#1) [H, label={[name=l#1]#1}]
        {\node[circ]{};\\
        \node[cross]{};\\
        \node[circ]{};\\
        \node[cross]{};\\
        \node[cross]{};\\
        \node[circ]{};\\};
        }
    ]

    \path (0,0) pic{column=Input};
    \path (1.5,0) pic{column=H1};
    \path (3,0) pic{column=H2};

    \node[fit=(Input) (lInput) (H2), draw, label=Encoder]{};

    \begin{scope}[xshift=5cm]
    \path (0,0) pic{column=H3};
    \path (1.5,0) pic{column=H4};
    \path (3,0) pic{column=Output};

    \node[fit=(H3) (lOutput) (Output), draw, label=Decoder]{};
    \end{scope}

\end{tikzpicture}
\end{document}

Related Solutions

[Tex/LaTex] UML Statediagram

You could make your state node into a 'multipart' node. For that, you need to load the shapes.multipart TikZ library. You should then be able to use all the placement options that you're used to.

Result:

enter image description here

Code:

\documentclass[border=1cm]{standalone}
\usepackage{tikz}
\usetikzlibrary{shapes.multipart}    
\begin{document}
  \begin{tikzpicture}
    \node[rectangle split, rectangle split parts=2, draw, rounded corners]{%
      \tikz\node[draw=red, rectangle, rounded corners]{titel};
      \nodepart{two}
      \begin{tabular}{c}
      content \\ more content
      \end{tabular}
    };
  \end{tikzpicture}
\end{document}

PS. You might alternatively make your state node into a matrix, but then it's quite hard to get the horizontal line that you want (see this discussion, for instance).

[Tex/LaTex] How to define the default vertical distance between nodes

I don't really get the question so I hope this is what you wanted. If you include a full document (such that we copy paste and see the problem on our systems) things are much more easier.

Here, you can change the default setting within a scope but your block style had a node distance which was resetting every time it is issued. I've made it 2mm such that we can see the difference easier.

\documentclass[tikz]{standalone}
\usetikzlibrary{arrows,shapes.geometric,positioning}

\begin{document}
\begin{tikzpicture}[decision/.style={diamond, draw, text width=4.5em, text badly centered, node distance=3.5cm, inner sep=0pt},
                    block/.style   ={rectangle, draw, text width=6em, text centered, rounded corners, minimum height=4em, minimum height=2em},
                    cloud/.style   ={draw, ellipse, minimum height=2em},
                    line/.style    ={draw,-latex'},
                    node distance = 1cm, 
                    auto]
    \node [block] (1st) {1st};
    \node [block, right= of 1st]  (2nd1) {2nd1};
\begin{scope}[node distance=2mm and 10mm]%Here we change it for everything inside this scope
    \node [block, above= of 2nd1] (2nd2) {2nd2};
    \node [block, below= of 2nd1] (2nd3) {2nd3};
    \node [block, right= of 2nd1] (3rd1) {3rd1};
    \node [block, above= of 3rd1] (3rd2) {3rd2};
    \node [block, above= of 3rd2] (3rd3) {3rd3};
\end{scope}
    \node [block, below= of 3rd1] (3rd4) {3rd4};
    \node [block, below= of 3rd4] (3rd5) {3rd5};

    \path [line] (1st) -- (2nd1);
    \path [line] (2nd1) -- (2nd2);
    \path [line] (2nd1) -- (2nd3);
    \path [line] (2nd2) -- (3rd3);
    \path [line] (2nd1) -- (3rd1);
    \path [line] (1st) -- (2nd1);
\end{tikzpicture}
\end{document}

enter image description here

Best Answer

Related Solutions

[Tex/LaTex] UML Statediagram

[Tex/LaTex] How to define the default vertical distance between nodes

Related Question