Spatial Nearest-neighbor Query based on Voronoi Diagram

<div>Geographic Information System has a nearest-neighbor operation set, and this operation set is used to be the tool relevant to spatial nearest-neighbor analyses. In this</div><div>paper, we establish two fundamental concepts -- nearest-neighbor and Voronoi neighborhood, and discuss a set of technical routes, theories and methods which are</div><div>applicable to spatial nearest-neighbor queries. In a word, we explore a new idea of realizing spatial nearest-neighbor operations under the uniform framework of Voronoi concepts.