motivation finished
This commit is contained in:
parent
0ecae6fc7a
commit
cd4a8e81cd
10 changed files with 238 additions and 26 deletions
2
.gitignore
vendored
2
.gitignore
vendored
|
@ -1,4 +1,4 @@
|
||||||
talk.pdf
|
upperbounds.pdf
|
||||||
|
|
||||||
# Created by https://www.gitignore.io/api/latex,tex,emacs,linux
|
# Created by https://www.gitignore.io/api/latex,tex,emacs,linux
|
||||||
|
|
||||||
|
|
20
inputs/elimination.tex
Normal file
20
inputs/elimination.tex
Normal file
|
@ -0,0 +1,20 @@
|
||||||
|
\begin{frame}{Table of contents}
|
||||||
|
\setbeamertemplate{section in toc}[sections numbered]
|
||||||
|
\setbeamertemplate{subsection in toc}[square]
|
||||||
|
\tableofcontents[sections={2}]
|
||||||
|
\end{frame}
|
||||||
|
|
||||||
|
|
||||||
|
\subsection{Idea}
|
||||||
|
|
||||||
|
\begin{frame}{}
|
||||||
|
|
||||||
|
\end{frame}
|
||||||
|
|
||||||
|
\subsection{Test1}
|
||||||
|
\subsection{Test2}
|
||||||
|
|
||||||
|
%%% Local Variables:
|
||||||
|
%%% mode: latex
|
||||||
|
%%% TeX-master: "../upperbounds"
|
||||||
|
%%% End:
|
14
inputs/introduction.tex
Normal file
14
inputs/introduction.tex
Normal file
|
@ -0,0 +1,14 @@
|
||||||
|
\begin{frame}{Table of contents}
|
||||||
|
\setbeamertemplate{section in toc}[sections numbered]
|
||||||
|
\tableofcontents[hideallsubsections]
|
||||||
|
\end{frame}
|
||||||
|
|
||||||
|
\section{Introduction}
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
|
||||||
|
%%% Local Variables:
|
||||||
|
%%% mode: latex
|
||||||
|
%%% TeX-master: "../upperbounds"
|
||||||
|
%%% End:
|
106
inputs/motivation.tex
Normal file
106
inputs/motivation.tex
Normal file
|
@ -0,0 +1,106 @@
|
||||||
|
\begin{frame}{General Motivation}
|
||||||
|
\begin{columns}[c]
|
||||||
|
\begin{column}{0.5\textwidth}
|
||||||
|
\begin{enumerate}
|
||||||
|
\item Choose infeasible problem
|
||||||
|
\begin{itemize}
|
||||||
|
\item Combinatorial Problems
|
||||||
|
\item Computational Biology
|
||||||
|
\item Constraint Satisfaction
|
||||||
|
\item \dots{}
|
||||||
|
\end{itemize}
|
||||||
|
\item Find FPT$_{tw}$ algorithm
|
||||||
|
\item Model problem as graph
|
||||||
|
\item Compute \emph{tree composition} with small \emph{tree width}
|
||||||
|
\uncover<2>{\alert{\item Tract the intractable}}
|
||||||
|
\end{enumerate}
|
||||||
|
\end{column}
|
||||||
|
|
||||||
|
\begin{column}{0.8\textwidth}
|
||||||
|
\begin{center}
|
||||||
|
\begin{tikzpicture}[xscale=1.5,yscale=1.6]
|
||||||
|
\tikzstyle{every node}=[]
|
||||||
|
\tikzstyle{every path}=[line width=0pt]
|
||||||
|
%
|
||||||
|
\begin{scope}
|
||||||
|
\draw[fill,green,opacity=1,line width=0]
|
||||||
|
(-1.5,0) -- (1.5,0)
|
||||||
|
(-1,0) .. controls (-.8,1) and (.8,1) .. (1,0);
|
||||||
|
;
|
||||||
|
%
|
||||||
|
\draw[fill,green!50,opacity=1,line width=0]
|
||||||
|
(-1,0) .. controls (-.8,1) and (.8,1) .. (1,0)
|
||||||
|
(1.1,0) .. controls (1.1,2.5) and (-1.1,2.5) .. (-1.1,0)
|
||||||
|
;
|
||||||
|
%
|
||||||
|
\draw[fill,red!50,opacity=1,line width=0]
|
||||||
|
(1.1,0) .. controls (1.1,2.5) and (-1.1,2.5) .. (-1.1,0)
|
||||||
|
(-1.2,0) .. controls (-1.2,3.5) and (1.2,3.5) .. (1.2,0)
|
||||||
|
;
|
||||||
|
%
|
||||||
|
\draw[fill,red!100,opacity=1,line width=0]
|
||||||
|
(-1.2,0) .. controls (-1.2,3.5) and (1.2,3.5) .. (1.2,0)
|
||||||
|
(1.5,0) .. controls (1.5,4.5) and (-3,4.5) .. (-1.5,0)
|
||||||
|
;
|
||||||
|
\draw[fill,red!100,opacity=1,line width=0]
|
||||||
|
(-1.2,0) .. controls (-1.2,3.5) and (1.2,3.5) .. (1.2,0)
|
||||||
|
(1.5,0) .. controls (3,4.5) and (-1.5,4.5) .. (-1.5,0)
|
||||||
|
;
|
||||||
|
%
|
||||||
|
\draw
|
||||||
|
(-1.5,0) -- (1.5,0)
|
||||||
|
(0,0.25) node[] {P}
|
||||||
|
(-1,0) .. controls (-.8,1) and (.8,1) .. (1,0)
|
||||||
|
%
|
||||||
|
(0,1.25) node[] {FPT}
|
||||||
|
(-1.1,0) .. controls (-1.1,2.5) and (1.1,2.5) .. (1.1,0)
|
||||||
|
%
|
||||||
|
(0,2.15) node[] {W[i]}
|
||||||
|
(-1.2,0) .. controls (-1.2,3.5) and (1.2,3.5) .. (1.2,0)
|
||||||
|
%
|
||||||
|
(-1,2.9) node[] {XP}
|
||||||
|
% (0,2.8) node[circle,black,fill,inner sep=0pt] {}
|
||||||
|
% (0,2.6) node[circle,black,fill,inner sep=0pt] {}
|
||||||
|
% (0,2.4) node[circle,black,fill,inner sep=0pt] {}
|
||||||
|
(-1.5,0) .. controls (-3,4.5) and (1.5,4.5) .. (1.5,0)
|
||||||
|
%
|
||||||
|
(1,2.9) node[] {paraNP}
|
||||||
|
% (0,2.8) node[circle,black,fill,inner sep=0pt] {}
|
||||||
|
% (0,2.6) node[circle,black,fill,inner sep=0pt] {}
|
||||||
|
% (0,2.4) node[circle,black,fill,inner sep=0pt] {}
|
||||||
|
(-1.5,0) .. controls (-1.5,4.5) and (3,4.5) .. (1.5,0)
|
||||||
|
;
|
||||||
|
\end{scope}
|
||||||
|
\end{tikzpicture}
|
||||||
|
\end{center}
|
||||||
|
\end{column}
|
||||||
|
\end{columns}
|
||||||
|
\end{frame}
|
||||||
|
|
||||||
|
\begin{frame}{Why Upper Bounds?}
|
||||||
|
|
||||||
|
\metroset{block=fill}
|
||||||
|
|
||||||
|
\begin{block}{We want (efficiently)}
|
||||||
|
\begin{itemize}
|
||||||
|
\item \emph{High} Lower Bound: Tree dec. not the right tool
|
||||||
|
\item \emph{Low} Upper Bound: Tree dec. works
|
||||||
|
\item Other combinations? -- Not so useful
|
||||||
|
\end{itemize}
|
||||||
|
\end{block}
|
||||||
|
|
||||||
|
\begin{block}{What this paper is about}
|
||||||
|
\smallskip
|
||||||
|
Exact algorithm: Huge constant factor \cite{roehrig1998}
|
||||||
|
\begin{itemize}
|
||||||
|
\item[$\rightarrow$] Find a non-optimal tree decomposition
|
||||||
|
\item[$\rightarrow$] This is also an Upper Bound
|
||||||
|
\end{itemize}
|
||||||
|
\end{block}
|
||||||
|
|
||||||
|
\end{frame}
|
||||||
|
|
||||||
|
%%% Local Variables:
|
||||||
|
%%% mode: latex
|
||||||
|
%%% TeX-master: "../upperbounds"
|
||||||
|
%%% End:
|
BIN
res/down.png
Normal file
BIN
res/down.png
Normal file
Binary file not shown.
After Width: | Height: | Size: 2.3 KiB |
BIN
res/up.png
Normal file
BIN
res/up.png
Normal file
Binary file not shown.
After Width: | Height: | Size: 2.4 KiB |
25
talk.tex
25
talk.tex
|
@ -1,25 +0,0 @@
|
||||||
\documentclass{beamer}
|
|
||||||
\usepackage[english]{babel}
|
|
||||||
\usepackage[utf8]{inputenc}
|
|
||||||
\usepackage{graphicx}
|
|
||||||
\usepackage[T1]{fontenc}
|
|
||||||
%\usepackage{lmodern}
|
|
||||||
%\usepackage{helvet}
|
|
||||||
|
|
||||||
\usetheme{metropolis}
|
|
||||||
|
|
||||||
\subject{Upper Bounds}
|
|
||||||
\title[Upper Bounds]{Upper Bounds for Treewidth}
|
|
||||||
\subtitle{}
|
|
||||||
\author{Armin Friedl}
|
|
||||||
\date{\today}
|
|
||||||
|
|
||||||
\begin{document}
|
|
||||||
\frame{\titlepage}
|
|
||||||
|
|
||||||
\end{document}
|
|
||||||
|
|
||||||
%%% Local Variables:
|
|
||||||
%%% mode: latex
|
|
||||||
%%% TeX-master: t
|
|
||||||
%%% End:
|
|
32
upperbounds.bib
Normal file
32
upperbounds.bib
Normal file
|
@ -0,0 +1,32 @@
|
||||||
|
% This file was created with JabRef 2.10.
|
||||||
|
% Encoding: ISO8859_1
|
||||||
|
|
||||||
|
|
||||||
|
@Article{bodlaender2010,
|
||||||
|
Title = {Treewidth computations I. Upper bounds},
|
||||||
|
Author = {Hans L. Bodlaender and Arie M.C.A. Koster},
|
||||||
|
Year = {2010},
|
||||||
|
Doi = {http://dx.doi.org/10.1016/j.ic.2009.03.008},
|
||||||
|
ISSN = {0890-5401},
|
||||||
|
Number = {3},
|
||||||
|
Pages = {259 - 275},
|
||||||
|
Url = {http://www.sciencedirect.com/science/article/pii/S0890540109000947},
|
||||||
|
Volume = {208},
|
||||||
|
|
||||||
|
Abstract = {For more and more applications, it is important to be able to compute the treewidth of a given graph and to find tree decompositions of small width reasonably fast. This paper gives an overview of several upper bound heuristics that have been proposed and tested for the problem of determining the treewidth of a graph and finding tree decompositions. Each of the heuristics produces tree decompositions whose width may be larger than the optimal width. However, experiments show that in many cases, the heuristics give tree decompositions whose width is close to the exact treewidth of the input graphs.},
|
||||||
|
Journal = {Information and Computation},
|
||||||
|
Keywords = {Treewidth}
|
||||||
|
}
|
||||||
|
|
||||||
|
@Mastersthesis{roehrig1998,
|
||||||
|
Title = {{{Tree Decomposition: A Feasibility Study}}},
|
||||||
|
Author = {Hein R{\"o}hrig},
|
||||||
|
Institution = {Max-Planck-Institut für Informatik},
|
||||||
|
Year = {1998},
|
||||||
|
Location = {Saarbrücken, Germany},
|
||||||
|
Url = {http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.132.7594&rep=rep1&type=pdf},
|
||||||
|
|
||||||
|
Owner = {armin},
|
||||||
|
Timestamp = {2016.06.26}
|
||||||
|
}
|
||||||
|
|
BIN
upperbounds.pdf
Normal file
BIN
upperbounds.pdf
Normal file
Binary file not shown.
65
upperbounds.tex
Normal file
65
upperbounds.tex
Normal file
|
@ -0,0 +1,65 @@
|
||||||
|
\documentclass[10pt]{beamer}
|
||||||
|
\usepackage{appendixnumberbeamer}
|
||||||
|
\usepackage{booktabs}
|
||||||
|
\usepackage[scale=2]{ccicons}
|
||||||
|
\usepackage{pgfplots}
|
||||||
|
\usepgfplotslibrary{dateplot}
|
||||||
|
\usepackage{xspace}
|
||||||
|
%\usepackage{graphicx}
|
||||||
|
\usepackage{scalerel}
|
||||||
|
|
||||||
|
% == General Beamer Settings ==
|
||||||
|
\usetheme{metropolis}
|
||||||
|
|
||||||
|
% == Presentation Settings ==
|
||||||
|
\def\thumbsup{\scalerel*{\includegraphics{res/up.png}}{O}}
|
||||||
|
\def\thumbsdown{\scalerel*{\includegraphics{res/down.png}}{O}}
|
||||||
|
|
||||||
|
\subject{Upper Bounds}
|
||||||
|
\title[Upper Bounds]{Treewidth computations I. Upper bounds}
|
||||||
|
\subtitle{Hans L. Bodlaender, Arie M.C.A Koster}
|
||||||
|
\author{Armin Friedl}
|
||||||
|
\date{\today}
|
||||||
|
|
||||||
|
\begin{document}
|
||||||
|
\maketitle
|
||||||
|
|
||||||
|
\begin{frame}{Table of contents}
|
||||||
|
\setbeamertemplate{section in toc}[sections numbered]
|
||||||
|
\tableofcontents[hideallsubsections]
|
||||||
|
\end{frame}
|
||||||
|
|
||||||
|
\section{Motivation}
|
||||||
|
\input{inputs/motivation}
|
||||||
|
|
||||||
|
\section{Elimination Ordering Methods}
|
||||||
|
\input{inputs/elimination}
|
||||||
|
|
||||||
|
\begin{frame}{Table of contents}
|
||||||
|
\setbeamertemplate{section in toc}[sections numbered]
|
||||||
|
\setbeamertemplate{subsection in toc}[square]
|
||||||
|
\tableofcontents[sections={2}]
|
||||||
|
\end{frame}
|
||||||
|
|
||||||
|
\subsection{Idea}
|
||||||
|
|
||||||
|
|
||||||
|
\subsection{Test1}
|
||||||
|
\subsection{Test2}
|
||||||
|
|
||||||
|
\section{Separator Methods}
|
||||||
|
|
||||||
|
\section{Results}
|
||||||
|
|
||||||
|
\begin{frame}[allowframebreaks]{References}
|
||||||
|
\nocite{bodlaender2010}
|
||||||
|
\bibliography{upperbounds}
|
||||||
|
\bibliographystyle{abbrv}
|
||||||
|
\end{frame}
|
||||||
|
|
||||||
|
\end{document}
|
||||||
|
|
||||||
|
%%% Local Variables:
|
||||||
|
%%% mode: latex
|
||||||
|
%%% TeX-master: t
|
||||||
|
%%% End:
|
Loading…
Reference in a new issue