Geoscience Reference
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each point need to exist and differ from each other. Thus the selection is
based on the variation of the importance values.
pRiQtgeQeraOi]atiRQ aOgRrithP StatisticaO IQfR
(Qr Rf pRiQts)
ThePatic IQfR
(iPpRrtaQce
vaOue)
TRpRORgicaO
IQfR
0etric
IQfR
x
x
x
distaQce
1 SettOePeQtSpaciQg RatiR
aOgRrithP
x
x
distaQce
2 GravityPRdeOiQg aOgRrithP
x
x
x
distaQce
3 DistributiRQcRefficieQt
cRQtrRO aOgRrithP
x
x
distaQce
4 SetsegPeQtatiRQ aOgRrithP
x
x
distaQce
5 QuadratreductiRQ aOgRrithP
x
x
x
distaQce
6 CircOegrRwth aOgRrithP
x
x
distaQce
7 Quadtreebased aOgRrithP
x
distaQce
8 SiPpOificatiRQ aOgRrithP
x
x
x
ORcaO deQsity
distributiRQ
raQge
9 VRrRQRibased aOgRrithP
x
x
pROar distaQce
pROar aQgOe
10 PROari]atiRQ apprRach
Table 2 : Analysis of the existing algorithms
Concerning the transmission of topological information, the Polarization
approach is the only one which maintains the global and the local charac-
teristics (distribution, density) of the generalized point data set.
So far none of the existing algorithms deal with points in 3D space or
dynamic points in 2D or 3D. Nowadays geo-data acquisition of static and
dynamic points in 2D or 3D need new point selection methods concerning
the higher dimensions. In this approach it is attempt to fill this research
gap.
 
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