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Table 2 Results of ranked taxon retrieval solely using GBIF point-based occurrence records sampled at the exact location and aggregated for increasing radii around Flickr test observations

From: Recommending plant taxa for supporting on-site species identification

Radius [km] R [%] R20 [%] R514 [%] MRR [%] M LL LR
S1: Relative frequency of occurrence records        
0 36.36 19.90 36.36 6.61 17 73 262.00
1 43.40 16.43 43.40 5.06 36 142 218.72
5 59.72 11.28 58.04 3.45 89 337 91.61
10 73.15 12.05 69.45 3.41 111 504 16.60
20 85.51 11.12 77.68 2.71 133 752 5.36
S2: Weighted relative frequency of occurrence records        
1 43.40 18.15 43.38 5.54 30 142 218.72
5 59.72 14.31 58.54 4.30 70 337 91.61
10 73.15 13.61 70.52 4.05 89 504 16.60
20 85.51 14.98 79.73 3.77 108 752 5.36
S3: Minimum spatial distance to records’ tile centers        
1 43.40 12.84 43.44 3.46 51 142 218.72
5 59.72 14.87 58.46 4.12 66 337 91.61
10 73.15 16.00 71.09 4.59 77 504 16.60
20 85.51 16.46 80.62 4.54 92 752 5.36
S4: Average spatial distance to records’ tile centers        
1 43.40 14.51 43.39 4.63 55 142 218.72
5 59.72 12.91 58.50 3.99 76 337 91.61
10 73.15 10.48 70.69 2.97 110 504 16.60
20 85.51 9.68 78.83 2.83 136 752 5.36
S5: Temporal distance to months with recorded occurrences        
0 36.35 23.12 36.35 7.36 13 73 261.10
1 43.39 19.81 43.39 5.81 24 141 218.97
5 59.71 12.47 58.84 3.60 77 337 91.78
10 73.15 11.21 69.95 3.08 108 503 16.67
20 85.50 7.25 77.88 1.96 168 751 5.37