changed template
added chapters added bib
This commit is contained in:
1
tex/chapters/abstract.tex
Normal file
1
tex/chapters/abstract.tex
Normal file
@@ -0,0 +1 @@
|
||||
This is the abstract stract stract
|
||||
2
tex/chapters/conclusion.tex
Normal file
2
tex/chapters/conclusion.tex
Normal file
@@ -0,0 +1,2 @@
|
||||
\section{Conclusion}
|
||||
The conclusion goes here.
|
||||
2
tex/chapters/experiments.tex
Normal file
2
tex/chapters/experiments.tex
Normal file
@@ -0,0 +1,2 @@
|
||||
\section{Experiments}
|
||||
|
||||
7
tex/chapters/introduction.tex
Normal file
7
tex/chapters/introduction.tex
Normal file
@@ -0,0 +1,7 @@
|
||||
\section{Introduction}
|
||||
|
||||
\cite{Deinzer01-CIV}
|
||||
% KDE wellknown nonparametic estimation method
|
||||
% Flexibility is paid with slow speed
|
||||
% Finding optimal bandwidth
|
||||
% Expensive computation
|
||||
29
tex/chapters/kde.tex
Normal file
29
tex/chapters/kde.tex
Normal file
@@ -0,0 +1,29 @@
|
||||
\section{Binned Kernel Density Estimation}
|
||||
% KDE by rosenblatt and parzen
|
||||
% general KDE
|
||||
% Gauss Kernel
|
||||
% Formula Gauss KDE
|
||||
% -> complexity/operation count
|
||||
% Binned KDE
|
||||
% Binned Gauss KDE
|
||||
% -> complexity/operation count
|
||||
|
||||
The histogram is a simple and for a long time the most used non-parametric estimator.
|
||||
However, its inability to produce a continuous estimate dismisses it for many applications where a smooth distribution is assumed.
|
||||
In contrast, the KDE is often the preferred tool because of its ability to produce a continuous estimate and its flexibility.
|
||||
Given $n$ independently observed realizations of the observation set $X=(x_1,\dots,x_n)$, the kernel density estimate $\hat{f}_n$ of the density function $f$ of the underlying distribution is given with
|
||||
\begin{equation}
|
||||
\label{eq:kde}
|
||||
\hat{f}_n = \frac{1}{nh} \sum_{i=1}^{n} K \left( \frac{x-X_i}{h} \right) \text{,} %= \frac{1}{n} \sum_{i=1}^{n} K_h(x-x_i)
|
||||
\end{equation}
|
||||
where $K$ is the kernel function and $h\in\R^+$ is an arbitrary smoothing parameter called bandwidth.
|
||||
While any density function can be used as the kernel function $K$ (such that $\int K(u) \dop{u} = 1$), a variety of popular choices of the kernel function $K$ exits.
|
||||
In practice the Gaussian kernel is commonly used:
|
||||
\begin{equation}
|
||||
K(u)=\frac{1}{\sqrt{2\pi}} \expp{- \frac{u^2}{2} }
|
||||
\end{equation}
|
||||
|
||||
\begin{equation}
|
||||
\hat{f}_n = \frac{1}{nh\sqrt{2\pi}} \sum_{i=1}^{n} \expp{-\frac{(x-X_i)^2}{2h^2}}
|
||||
\end{equation}
|
||||
|
||||
22
tex/chapters/mvg.tex
Normal file
22
tex/chapters/mvg.tex
Normal file
@@ -0,0 +1,22 @@
|
||||
\section{Moving Average Filter}
|
||||
% Basic box filter formula
|
||||
% Recursive form
|
||||
% Gauss Blur Filter
|
||||
% Repetitive Box filter to approx Gauss
|
||||
% Simple multipass, n/m approach, extended box filter
|
||||
The moving average filter is a simplistic filter which takes an input function $x$ and produces a second function $y$.
|
||||
A single output value is computed by taking the average of a number of values symmetrical around a single point in the input.
|
||||
The number of values in the average can also be seen as the width $w=2r+1$, where $r$ is the \qq{radius} of the filter.
|
||||
The computation of an output value using a moving average filter of radius $r$ is defined as
|
||||
\begin{equation}
|
||||
\label{eq:symMovAvg}
|
||||
y[i]=\frac{1}{2r+1} \sum_{j=-r}^{r}x[i+j] \text{.}
|
||||
\end{equation}
|
||||
|
||||
It is well-known that a moving average filter can approximate a Gaussian filter by repetitive recursive computations.
|
||||
|
||||
|
||||
|
||||
As is known the Gaussian filter is parametrized by its standard deviation $\sigma$.
|
||||
To approximate a Gaussian filter one needs to express a given $\sigma$ in terms of moving average filters.
|
||||
|
||||
5
tex/chapters/relatedwork.tex
Normal file
5
tex/chapters/relatedwork.tex
Normal file
@@ -0,0 +1,5 @@
|
||||
\section{Related work}
|
||||
% original work rosenblatt/parzen
|
||||
% binned version silverman, scott, härdle
|
||||
% -> Fourier transfom
|
||||
% other approaches Fast Gaussian Transform
|
||||
2
tex/chapters/usage.tex
Normal file
2
tex/chapters/usage.tex
Normal file
@@ -0,0 +1,2 @@
|
||||
\section{Usage}
|
||||
%wie benutzen wir das ganze jetzt? auf was muss ich achten?
|
||||
Reference in New Issue
Block a user