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Table 4 The percentage increase in the prevalence of tsetse over the base TED model for simulations 13–20

From: Using meta-quality to assess the utility of volunteered geographic information for science

Sim Error type % Gain Variance
Overall 2004 2005 2006 Overall 2004 2005 2006
13 10% 1.38 0.39 2.07 1.74 139.44 48.86 116.26 95.18
14 50% 5.23 1.88 7.94 5.95 144.9 70.59 124.32 99.84
15 Spatial shift 5% 1.39 0.39 2.13 1.7 137.33 49.43 112.58 92.83
16 Spatial shift 10% 1.39 0.44 2.22 1.52 142.05 54.59 118.36 97.97
17 Spatial shift 25% 1.41 0.44 2.18 1.65 131.66 50.61 108.22 95.31
18 Temporal shift 5% 1.46 0.43 2.21 1.79 135.71 50.68 112.63 97.89
19 Temporal shift 10% 1.54 0.45 2.4 1.81 149.88 52.54 124.28 97.73
20 Temporal shift 25% 1.61 0.5 2.47 1.9 148.95 55.65 119.68 97.55