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Table 1 Results of ranked taxon retrieval solely using FLORKART grid-based presence-absence data 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
Retrieval at exact location        
0 82.31 3.38 64.13 1.11 307 680 4.54
S1: Relative frequency of occurrence records        
1 85.40 2.42 68.15 0.79 300 787 3.79
5 92.35 4.62 74.94 1.52 237 1115 2.59
10 94.47 4.78 74.42 1.35 234 1286 2.23
20 96.14 5.65 72.39 1.81 237 1477 1.92
S2: Weighted relative frequency of occurrence records        
1 85.40 2.62 68.73 0.95 287 787 3.79
5 92.35 4.36 74.80 1.56 240 1115 2.59
10 94.47 4.74 74.70 1.55 232 1286 2.23
20 96.14 5.71 73.88 1.78 233 1477 1.92
S3: Minimum spatial distance to records’ tile centers        
1 85.40 4.00 63.28 1.14 330 787 3.79
5 92.35 2.85 64.58 1.01 357 1115 2.59
10 94.47 2.13 64.25 0.80 375 1286 2.23
20 96.14 2.52 64.23 0.82 379 1477 1.92
S4: Average spatial distance to records’ tile centers        
1 85.40 2.06 60.00 0.65 380 787 3.79
5 92.35 0.46 52.91 0.37 470 1115 2.59
10 94.47 0.68 46.32 0.37 520 1286 2.23
20 96.14 0.81 37.00 0.37 615 1477 1.92