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\title{Mineração de Dados Aplicada}
\subtitle{Technical Reports and Talks}

\author{Loïc Cerf}

\date{May, 14th 2025}

\institute
{
  \scriptsize
  DCC -- ICEx -- UFMG\\
  \bigskip
  \includegraphics[width=.334113288\linewidth]{images/dcc}\hfill\includegraphics[width=.5\linewidth]{images/ufmg}
}

\subject{Technical Reports and Talks}

\keywords{reports, talks}

\hypersetup{pdfpagemode=FullScreen}

\AtBeginSection[]
{
  \begin{frame}<beamer>
    \frametitle{Outline}
    \tableofcontents[currentsection]
  \end{frame}
}

\begin{document}

\begin{frame}[plain]
  \titlepage
\end{frame}

\begin{frame}
  \frametitle{Outline for the next sessions}
  \begin{description}
  \item[Today] On Technical Reports and Talks\\
    + Clustering in KNIME;
  \item[19/05] Project work;
  \item[21/05] Itemset mining;
  \item[26/05] Association rule mining;
  \item[28/05] Oral presentations.
  \end{description}

  \vfill

  Partial reports for May 19th (4 pages).
\end{frame}

\section*{Technical reports and talks}

\begin{frame}
  \frametitle{Typical structure: whole report/talk}
  \begin{enumerate}[<+->]
  \item Introduction: the context of the \emph{application}, the
    motivation to analyze the chosen data, where and how the data were
    collected, the number of objects, the plan of the report;
  \item Definitions of the (derived) attributes that are \emph{used},
    basic statistics and visualizations of the data, the problems
    (missing information, noise, etc.) with fixes (explained) or
    without fixes (limitations);
  \item \alert<6>{One section per data mining analysis};
  \item Conclusion: summary of what was discovered and future work.
  \end{enumerate}

  \vfill

  \uncover<5->{The developed code (pre-processing, Java snippets,
    etc.) must be in an annex of the report.}
\end{frame}

\begin{frame}
  \frametitle{Typical structure: one analysis}
  \begin{enumerate}[<+->]
  \item The question the analysis should answer;
  \item The chosen methodology/workflow: pre-process and algorithm,
    with their hyperparameters, and justifications of the choices;
  \item The chosen quality measure: what is \emph{most interesting};
  \item The most interesting pattern(s) visualized/listed;
  \item Interpretation of those patterns: what do they mean,
    correlation with other attributes, use of background knowledge,
    possible causes;
  \item A conclusion: what was discovered, the answer to the
    question?;
  \item A transition to the next section, if complementary.
  \end{enumerate}
\end{frame}

\begin{frame}
  \frametitle{Clarity for the audience}
  The most important aspect of a technical report/talk is its clarity.
  \begin{itemize}
  \item The structure matters a lot (division in sections, their
    order, etc.);
  \item The mathematical language avoids ambiguities (\eg, for the
    definitions of the attributes);
  \item Every hyperparameter must be in the report (reproducibility);
  \item Shown facts (visualization) must back the interpretation.
  \end{itemize}
\end{frame}

\begin{frame}
  \frametitle{Clarity for the authors}
  Focusing on clarity helps the production of better works:
  \begin{itemize}
  \item what assumptions?
  \item what justifies the choices (of algorithm, of configuration,
    etc.)?
  \item what are the limits of the analysis?
  \item what is important/secondary?
  \end{itemize}

  \vfill
  \pause

  Write the report while (not after) working.  Try to explain your
  work to outsiders.
\end{frame}

\begin{frame}
  \frametitle{Presentation: general advices}
  The presentation only aims to make the content clearer. The greatest
  information/ink ratio must be sought:
  \begin{itemize}[<+->]
  \item Short sentences are better and parentheses should be avoided;
  \item Active voice is better;
  \item The language must be clear before being nice, \eg, it is
    better to make repetitions than to use different words for a
    same concept;
  \item Emphasize important words (typically with italics);
  \item In a figure, any variation of color, shape or size must
    carry an additional piece of information.
  \end{itemize}
\end{frame}

\begin{frame}
  \frametitle{Presentation: reports and slides}
  \begin{itemize}[<+->]
  \item Make the structure apparent, \eg, a different font for
    definitions;
  \item Use a spell-checker;
  \item Figures must be readable but not huge;
  \item The font in the report must be at least 10pt;
  \item Texts with about 66 characters per line are the most pleasant
    to read (use two columns not to waste space).
  \end{itemize}

  \vfill

  \uncover<6>{\LaTeX{} (Beamer for the slides) allows to focus on the
    content and to get a perfect typography. There are great existing
    templates, \eg, in the \texttt{texlive-publishers} package of
    Debian and derivatives.  Example of article, using the template
    for IEEE conferences:
    \url{http://dcc.ufmg.br/~lcerf/ICDE14_523.tar.bz2}.}
\end{frame}

\begin{frame}
  \frametitle{Intermediate oral presentations}
  \begin{itemize}[<+->]
  \item 5-minute presentations + 5-minute discussions;
  \item Everybody in the group must talk in some presentation;
  \item You can make slides (PDF or ODP) and send them to me;
  \item Give the big picture and then focus on one aspect;
  \item Be concrete: show data and patterns;
  \item Ask for help/ideas (bonus points for those helping).
  \end{itemize}
\end{frame}

\section*{}

\begin{frame}
  \frametitle{License}
  \begin{block}{\copyright 2012--2025 Loïc Cerf}
    \includegraphics[height=1.5ex]{img/licenses/cc-by-sa}\hskip1pt
    These slides are licensed under the Creative Commons
    Attribution-ShareAlike 4.0 International License.
  \end{block}
\end{frame}

\end{document}