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Table 3 Results of distance approximations by radius and number of grid points

From: Locational privacy-preserving distance computations with intersecting sets of randomly labeled grid points

Geo-locations Radius
in (m)
Grid points Mean absolute error
in (m)
\(\{P, Q1\}\) 10,000 50,000 791
\(\{P, Q2\}\) 10,000 50,000 1044
\(\{P, Q3\}\) 10,000 50,000 1422
\(\{P, Q1\}\) 90,000 100,000 136
\(\{P, Q2\}\) 90,000 100,000 140
\(\{P, Q3\}\) 90,000 100,000 2141