A Urban POI Selection Approach Constrained by Road Network

Abstract

Because the internal points of interest (POI) of a city are largely constrained by its road network, the urban POI data feature in the distribution along the road network. On that basis, this paper introduced a selection approach for urban POI data under restriction of road network. Firstly, a road network topological structure was built and the POI data were divided into two groups, with one close to the road network and the other far away from the road network, according to POI data distribution. Secondly, the thinning selection approach was applied to the POI close to the road network while the random selection approach or any of other suitable approaches was applied to those far away from the road network. The reasonable and accurate experimental results demonstrated the feasibility and practicality of the given selection approach to data processing.