\documentclass[10pt,a4paper]{article} % Packages \usepackage{fancyhdr} % For header and footer \usepackage{multicol} % Allows multicols in tables \usepackage{tabularx} % Intelligent column widths \usepackage{tabulary} % Used in header and footer \usepackage{hhline} % Border under tables \usepackage{graphicx} % For images \usepackage{xcolor} % For hex colours %\usepackage[utf8x]{inputenc} % For unicode character support \usepackage[T1]{fontenc} % Without this we get weird character replacements \usepackage{colortbl} % For coloured tables \usepackage{setspace} % For line height \usepackage{lastpage} % Needed for total page number \usepackage{seqsplit} % Splits long words. %\usepackage{opensans} % Can't make this work so far. Shame. Would be lovely. \usepackage[normalem]{ulem} % For underlining links % Most of the following are not required for the majority % of cheat sheets but are needed for some symbol support. \usepackage{amsmath} % Symbols \usepackage{MnSymbol} % Symbols \usepackage{wasysym} % Symbols %\usepackage[english,german,french,spanish,italian]{babel} % Languages % Document Info \author{Jalei (jale4it)} \pdfinfo{ /Title (machine-learning-data-mining.pdf) /Creator (Cheatography) /Author (Jalei (jale4it)) /Subject (Machine learning - Data Mining Cheat Sheet) } % Lengths and widths \addtolength{\textwidth}{6cm} \addtolength{\textheight}{-1cm} \addtolength{\hoffset}{-3cm} \addtolength{\voffset}{-2cm} \setlength{\tabcolsep}{0.2cm} % Space between columns \setlength{\headsep}{-12pt} % Reduce space between header and content \setlength{\headheight}{85pt} % If less, LaTeX automatically increases it \renewcommand{\footrulewidth}{0pt} % Remove footer line \renewcommand{\headrulewidth}{0pt} % Remove header line \renewcommand{\seqinsert}{\ifmmode\allowbreak\else\-\fi} % Hyphens in seqsplit % This two commands together give roughly % the right line height in the tables \renewcommand{\arraystretch}{1.3} \onehalfspacing % Commands \newcommand{\SetRowColor}[1]{\noalign{\gdef\RowColorName{#1}}\rowcolor{\RowColorName}} % Shortcut for row colour \newcommand{\mymulticolumn}[3]{\multicolumn{#1}{>{\columncolor{\RowColorName}}#2}{#3}} % For coloured multi-cols \newcolumntype{x}[1]{>{\raggedright}p{#1}} % New column types for ragged-right paragraph columns \newcommand{\tn}{\tabularnewline} % Required as custom column type in use % Font and Colours \definecolor{HeadBackground}{HTML}{333333} \definecolor{FootBackground}{HTML}{666666} \definecolor{TextColor}{HTML}{333333} \definecolor{DarkBackground}{HTML}{A3A3A3} \definecolor{LightBackground}{HTML}{F3F3F3} \renewcommand{\familydefault}{\sfdefault} \color{TextColor} % Header and Footer \pagestyle{fancy} \fancyhead{} % Set header to blank \fancyfoot{} % Set footer to blank \fancyhead[L]{ \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{C} \SetRowColor{DarkBackground} \vspace{-7pt} {\parbox{\dimexpr\textwidth-2\fboxsep\relax}{\noindent \hspace*{-6pt}\includegraphics[width=5.8cm]{/web/www.cheatography.com/public/images/cheatography_logo.pdf}} } \end{tabulary} \columnbreak \begin{tabulary}{11cm}{L} \vspace{-2pt}\large{\bf{\textcolor{DarkBackground}{\textrm{Machine learning - Data Mining Cheat Sheet}}}} \\ \normalsize{by \textcolor{DarkBackground}{Jalei (jale4it)} via \textcolor{DarkBackground}{\uline{cheatography.com/27180/cs/10790/}}} \end{tabulary} \end{multicols}} \fancyfoot[L]{ \footnotesize \noindent \begin{multicols}{3} \begin{tabulary}{5.8cm}{LL} \SetRowColor{FootBackground} \mymulticolumn{2}{p{5.377cm}}{\bf\textcolor{white}{Cheatographer}} \\ \vspace{-2pt}Jalei (jale4it) \\ \uline{cheatography.com/jale4it} \\ \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Cheat Sheet}} \\ \vspace{-2pt}Not Yet Published.\\ Updated 7th February, 2017.\\ Page {\thepage} of \pageref{LastPage}. \end{tabulary} \vfill \columnbreak \begin{tabulary}{5.8cm}{L} \SetRowColor{FootBackground} \mymulticolumn{1}{p{5.377cm}}{\bf\textcolor{white}{Sponsor}} \\ \SetRowColor{white} \vspace{-5pt} %\includegraphics[width=48px,height=48px]{dave.jpeg} Measure your website readability!\\ www.readability-score.com \end{tabulary} \end{multicols}} \begin{document} \raggedright \raggedcolumns % Set font size to small. Switch to any value % from this page to resize cheat sheet text: % www.emerson.emory.edu/services/latex/latex_169.html \footnotesize % Small font. \begin{multicols*}{3} \begin{tabularx}{5.377cm}{x{2.4885 cm} x{2.4885 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{What is Data?}} \tn % Row 0 \SetRowColor{LightBackground} \mymulticolumn{2}{x{5.377cm}}{Collection of data objects and their attributes.} \tn % Row Count 1 (+ 1) % Row 1 \SetRowColor{white} Attribute is a property of an object & Variable, field, characteristic, {\bf{feature}} \tn % Row Count 4 (+ 3) % Row 2 \SetRowColor{LightBackground} Collection of attributes decribes an object & Record, point, case, sample, entity, instance, {\bf{observation}} \tn % Row Count 8 (+ 4) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.62655 cm} x{1.12779 cm} x{0.96071 cm} x{1.46195 cm} } \SetRowColor{DarkBackground} \mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{Type of attributes}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Discrete} & Finite \seqsplit{(countably)} & Integer & {\emph{Zip, Counts}} \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} \seqsplit{Continuous} & Real numbers & Floating points & {\emph{Temp., height, weight}} \tn % Row Count 4 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}----} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.62655 cm} p{0.45947 cm} x{1.46195 cm} x{1.62903 cm} } \SetRowColor{DarkBackground} \mymulticolumn{4}{x{5.377cm}}{\bf\textcolor{white}{Hierarchy of attributes types}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Qualitative} & \seqsplit{Nominal} & Category (=, !=) & {\emph{ID, zip, eye, color}} \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} & \seqsplit{Ordinal} & Ranked (\textgreater{},\textless{}) & {\emph{Grades, \{low, med., high\}}} \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} \seqsplit{Quantitive} & \seqsplit{Interval} & Distance (+,-) & {\emph{Dates, temp (C/F)}} \tn % Row Count 6 (+ 2) % Row 3 \SetRowColor{white} & Ratio & Zero means absence (*, /) & {\emph{Length, time, temp(K)}} \tn % Row Count 8 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}----} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.77809 cm} x{3.15813 cm} p{0.64078 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Type of data sets}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Record} & Collection of dataobjects and their attributes & Table \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} \seqsplit{Relational} & Collection of data objects and their relation & Graph \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} \seqsplit{Ordered} & Ordered collection of data objects & \seqsplit{Sequence} \tn % Row Count 6 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{1.14471 cm} x{3.83229 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Data quality}} \tn % Row 0 \SetRowColor{LightBackground} High quality & Are fit for their intended use \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} & Correctly represent the phenomena they correspond to \tn % Row Count 4 (+ 2) % Row 2 \SetRowColor{LightBackground} Problems & Noise \tn % Row Count 5 (+ 1) % Row 3 \SetRowColor{white} & Outliers \tn % Row Count 6 (+ 1) % Row 4 \SetRowColor{LightBackground} & Missing values \tn % Row Count 7 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{0.9954 cm} x{3.9816 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Noise}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Definition} & Unwanted pertubation to a signal \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} & Unwanted data \tn % Row Count 3 (+ 1) % Row 2 \SetRowColor{LightBackground} Reasons & Limits in measurement accuracy \tn % Row Count 4 (+ 1) % Row 3 \SetRowColor{white} & Intererence from other signals \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} & Measurement of attributes not related to the data modeling task \tn % Row Count 7 (+ 2) % Row 5 \SetRowColor{white} \seqsplit{Handling} & Exclude noisy attributes \tn % Row Count 8 (+ 1) % Row 6 \SetRowColor{LightBackground} & Remove noise by filtering \tn % Row Count 9 (+ 1) % Row 7 \SetRowColor{white} & Include a model of noise \tn % Row Count 10 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{x{0.9954 cm} x{3.9816 cm} } \SetRowColor{DarkBackground} \mymulticolumn{2}{x{5.377cm}}{\bf\textcolor{white}{Outliers}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Definition} & Data objects which are significantly different from most others \tn % Row Count 2 (+ 2) % Row 1 \SetRowColor{white} Reasons & Measurement errors \tn % Row Count 3 (+ 1) % Row 2 \SetRowColor{LightBackground} & Natural property of data \tn % Row Count 4 (+ 1) % Row 3 \SetRowColor{white} \seqsplit{Handling} & Identify \& exclude outliers \tn % Row Count 5 (+ 1) % Row 4 \SetRowColor{LightBackground} & Model the outliers \tn % Row Count 6 (+ 1) \hhline{>{\arrayrulecolor{DarkBackground}}--} \end{tabularx} \par\addvspace{1.3em} \begin{tabularx}{5.377cm}{p{0.50347 cm} x{2.05965 cm} x{2.01388 cm} } \SetRowColor{DarkBackground} \mymulticolumn{3}{x{5.377cm}}{\bf\textcolor{white}{Missing values}} \tn % Row 0 \SetRowColor{LightBackground} \seqsplit{Definition} & No value is stored for an attribute in a data object & \tn % Row Count 3 (+ 3) % Row 1 \SetRowColor{white} \seqsplit{Reasons} & Information is not collected & {\emph{People decline to give their age}} \tn % Row Count 5 (+ 2) % Row 2 \SetRowColor{LightBackground} & Attribute is not applicable & {\emph{Annual income is not applicable to children}} \tn % Row Count 8 (+ 3) % Row 3 \SetRowColor{white} \seqsplit{Handling} & Eliminate data objects & \tn % Row Count 10 (+ 2) % Row 4 \SetRowColor{LightBackground} & Estimate missing values & {\emph{e.g. average}} \tn % Row Count 12 (+ 2) % Row 5 \SetRowColor{white} & Ignore the missing value in analysis & \tn % Row Count 14 (+ 2) \hhline{>{\arrayrulecolor{DarkBackground}}---} \end{tabularx} \par\addvspace{1.3em} % That's all folks \end{multicols*} \end{document}