Add graph for epochs / error curve

tikz/2d-epochs-overfitting/2d-epochs-overfitting.tex

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+\documentclass[varwidth=true, border=2pt]{standalone}
+
+\usepackage{pgfplots}
+\usepackage{tikz}
+\usetikzlibrary{positioning}
+\usetikzlibrary{decorations.text}
+\usetikzlibrary{decorations.pathmorphing}
+
+\begin{document}
+\begin{tikzpicture}
+    \begin{axis}[
+        legend pos=north east,
+        axis x line=middle,
+        axis y line=middle,
+        grid = major,
+        %width=9cm,
+        %height=4.5cm,
+        grid style={dashed, gray!30},
+        xmin=-1,     % start the diagram at this x-coordinate
+        xmax= 100,    % end   the diagram at this x-coordinate
+        ymin=-0.01,     % start the diagram at this y-coordinate
+        ymax= 0.98,   % end   the diagram at this y-coordinate
+        axis background/.style={fill=white},
+        xlabel=Epochs,
+        ylabel=Error,
+        %xticklabels={-2,-1.6,...,7},
+        %yticklabels={-8,-7,...,8},
+        tick align=outside,
+        minor tick num=-3,
+        enlargelimits=true,
+        tension=0.08]
+      \addplot[domain=2:50, red, thick,samples=200] {(x-50)^2/2700 + 0.1};
+      \addplot[domain=4:50, green, thick,samples=200] {(x-50)^2/2700 + 0.2};
+
+      \addplot[domain=50:100, red, thick,samples=200] {0.1};
+      \addplot[domain=50:100, green, thick,samples=200] {(x-50)^2/10000 + 0.2};
+
+      \draw[dashed] (axis cs:50,0.1) -- (axis cs:50,0.2);
+      \draw[decoration={text along path, text={overfitting}, text align={center}}, decorate] (axis cs:51,0.15) -- (axis cs:90,0.15);
+      \draw[->] (axis cs:51,0.15) -- (axis cs:90,0.15);
+
+      \addlegendentry{Training}
+      \addlegendentry{Testing}
+    \end{axis}
+\end{tikzpicture}
+\end{document}

tikz/2d-epochs-overfitting/Makefile

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+SOURCE = 2d-epochs-overfitting
+DELAY = 80
+DENSITY = 300
+WIDTH = 512
+
+make:
+	pdflatex $(SOURCE).tex -output-format=pdf
+	make clean
+
+clean:
+	rm -rf  $(TARGET) *.class *.html *.log *.aux *.data *.gnuplot
+
+gif:
+	pdfcrop $(SOURCE).pdf
+	convert -verbose -delay $(DELAY) -loop 0 -density $(DENSITY) $(SOURCE)-crop.pdf $(SOURCE).gif
+	make clean
+
+png:
+	make
+	make svg
+	inkscape $(SOURCE).svg -w $(WIDTH) --export-png=$(SOURCE).png
+
+transparentGif:
+	convert $(SOURCE).pdf -transparent white result.gif
+	make clean
+
+svg:
+	#inkscape $(SOURCE).pdf --export-plain-svg=$(SOURCE).svg
+	pdf2svg $(SOURCE).pdf $(SOURCE).svg
+	# Necessary, as pdf2svg does not always create valid svgs:
+	inkscape $(SOURCE).svg --export-width=$(WIDTH) --export-plain-svg=$(SOURCE)1.svg
+	rsvg-convert -a -w 720 -f svg $(SOURCE)1.svg -o $(SOURCE).svg
+	rm $(SOURCE)1.svg

tikz/2d-epochs-overfitting/README.md

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+Compiled example
+----------------
+![Example](2d-epochs-overfitting.png)