created file fot theo3.8

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Tobias Arndt 5 years ago
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%Arndt Tobias \hfill 21.12.2017\newline
%\textbf{Seminar Machine--Learning: Unsupervised %Learning} \newline
%Institut für Mathematik der Universität %Augsburg\\
%Lehrstuhl für Rechnerorientierte Statistik und %Datenanalyse\\
\smallskip\hrule\bigskip
\begin{center}
{\huge{Electricity Price Forecasting based on Regression Tree Models}}
\end{center}
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% Theorem 3.8
\input{theo_3_8.tex}
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With the following Theorem we will have an explicit desrctiption for the
limes of RN as the amount of nodes is increased.
\begin{Theorem}[Ridge weight penaltiy corresponds to adapted spline]
\label{theo:main1}
For arbitrary training data \(\left(x_i^{train}, y_i^{train}\right)\) it holds
\[
\plimn \norm{\mathcal{RN^{*, \tilde{\lambda}}} - f^{*,
\tilde{\lambda}}_{g, \pm}}_{W^{1,\infty}(K)} = 0.
\]
With
\begin{align*}
\label{eq:1}
\tilde{\lambda} &\coloneqq \lambda n g(0), \\
g(x) &\coloneqq
g_{\xi}(x)\mathbb{E}\left[ v_k^2 \vert \xi_k = x \right], \forall x
\in \mathbb{R}
\end{align*}
and \(RN^{*, \tilde{\lambda}}}\), \(f^{*,\tilde{\lambda}}_{g, \pm}\)
as defined in ??? and ??? respectively.
\end{Theorem}
In order to proof Theo~\ref{theo:main1} we need to proof a number of
auxilary Lemmata first.
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