statistical: Correction on wang2018privacy
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		@ -78,8 +78,8 @@
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      \hyperlink{chen2017pegasus}{\emph{PeGaSus}} & infinite & streaming & global & event & linkage & perturbation & differential \\
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      \cite{chen2017pegasus} & & & & & & (Laplace) & privacy \\ \hdashline
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      \hyperlink{wang2018privacy}{\textbf{\emph{DP-PSP}}} & infinite & streaming & global & $w$-event & linkage & perturbation & differential \\
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      \cite{wang2018privacy} & & & & & & (Laplace) & privacy \\
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      \hyperlink{wang2018privacy}{\textbf{\emph{DP-PSP}}} & infinite & streaming & global & $w$-event & linkage & perturbation (ex- & differential \\
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      \cite{wang2018privacy} & & & & & & ponential, Laplace) & privacy \\
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      \hyperlink{ma2019real}{\textbf{\emph{RPTR}}} & infinite & streaming & global & $w$-event & linkage & perturbation & differential \\
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      \cite{ma2019real} & & & & & & (Laplace) & privacy \\ \hdashline
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@ -363,7 +363,7 @@ The combination of the Perturber and the Grouper follows the sequential composit
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% - global
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% - w-event
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% - differential privacy
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% - perturbation (Laplace)
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% - perturbation (exponential, Laplace)
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\hypertarget{wang2018privacy}{Wang et al.}~\cite{wang2018privacy} presented \emph{DP-PSP}, an approach for publishing differentially private statistics over infinite streams of trajectory data.
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DP-PSP segments trajectories by taking into account points of interest in road networks.
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A start and end point (anchor) represents a segment and each data point in the trajectory data is calibrated to the nearest anchor.
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