Kd-tree and quad-tree decompositions for declustering of 2D range queries over uncertain space
Ahmet Sayar, Süleyman Eken, Okan Öztürk · Frontiers of Information Technology & Electronic Engineering · 2015
We present a study to show the possibility of using two well-known space partitioning and indexing techniques, kd trees and quad trees, in declustering applications to increase input/output (I/O) parallelization and reduce spatial data processing times. This parallelization enables time-consuming computational geometry algorithms to be applied efficiently to big spatial data rendering and querying. The key challenge is how to balance the spatial processing load across a large number of worker nodes, given significant performance heterogeneity in nodes and processing skews in the workload.