--- a/slides/slides07.tex Mon Nov 10 23:28:19 2014 +0000
+++ b/slides/slides07.tex Tue Nov 11 09:51:19 2014 +0000
@@ -339,10 +339,10 @@
\begin{itemize}
-\item in 1990 insurance databases were made public with names removed, but birth dates,
+\item in 1990 medical databases were made public with names removed, but birth dates,
gender, ZIP-code were retained\medskip
\item could be cross referenced with public voter registration data in order to find out what the
-medical record of the governor of Massachusetts was
+medical record of the governor of Massachusetts was (in 1997 Latanya Sweeney)
\end{itemize}
\end{frame}}
@@ -370,8 +370,33 @@
\end{frame}}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
-\mode<presentation>{
+\begin{frame}[c]
+\frametitle{AOL Search Queries}
+
+\begin{itemize}
+\item In 2006, AOL published 20 million Web search queries
+ collected of 650,000 users (names had been deleted)\medskip
+
+\item within days an old lady, Thelma Arnold, from Lilburn
+ Georgia was identified as user No. 4417749
+
+\item some of the queries that gave her away:
+\begin{itemize}
+\item landscapers in Lilburn, Ga
+\item 60 single men
+\item nicotine effects on the body
+\item \ldots
+\end{itemize}
+\end{itemize}
+
+\end{frame}
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
+
+
+
+%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
\begin{frame}<2>[c]
\frametitle{\large How to Safely Disclose Information?}
@@ -393,7 +418,7 @@
to identify whether an individual was part of the study --- DB closed in 2008)
\end{itemize}}
-\end{frame}}
+\end{frame}
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%%
@@ -455,7 +480,7 @@
\item Intuition: whatever is learned from the dataset would be learned regardless of whether
\bl{$x_i$} participates\bigskip\pause
-\item Noised needed in order to prevent queries:\\ Christian's salary $=$
+\item Noise needed in order to prevent queries:\\ Christian's salary $=$
\begin{center}
\bl{\large$\Sigma$} all staff $-$ \bl{\large$\Sigma$} all staff $\backslash$ Christian
\end{center}