Table 8 Standard deviation for repeated tests – Varying the value of k (Figure 15)
From: Efficient spatial data partitioning for distributed \(k\)NN joins
|  | With non–spatial data | Without non–spatial data | ||||||||
|---|---|---|---|---|---|---|---|---|---|---|
| Â |
|
|
|
|
|
|
|
|
|
|
Bus | 0.034–0.083 | 0.068–0.818 | 0.000–0.000 | 0.000–0.000 | 0.000–0.000 | 0.039–0.082 | 0.039–1.857 | 0.000–0.000 | 0.000–0.000 | 0.000–0.000 |
Taxi | 0.016–0.310 | 0.082–11.362 | 0.000–0.000 | 0.000–0.000 | 0.000–0.000 | 0.016–0.143 | 0.110–1.845 | 0.000–0.000 | 0.000–0.000 | 0.000–0.000 |
TLC | 0.532–2.453 | 0.582–2.117 | 0.000–0.000 | 0.000–0.000 | 0.000–0.000 | 0.111–3.289 | 1.341–5.295 | 0.000–0.000 | 0.000–0.000 | 0.000–0.000 |
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 SpPart_kNN 
LocationSpark 
Simba 
STARK 
GeoSpark
 SpPart_kNN 
LocationSpark 
Simba 
STARK 
GeoSpark