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Table 1 Reduction of number of spatial queries using aggregation algorithm

From: Spatial data extension for Cassandra NoSQL database

Circle radius and prec.

Without_aggregation

With_aggregation

Reduction rate (%)

10 m, 9

25

9

64

100 m, 9

451

123

72

1 km, 9

5218

1371

73.7

10 km, 9

52,517

14,133

73