文件名称:
Multiple Object Types KNN Search Using Network Voronoi Diagram
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上传时间: 2010-04-25
详细说明： Multiple Object Types KNN Search Using Network Voronoi Diagram Abstract. Existing work on k nearest neighbor (kNN) in spatial/mobile query processing focuses on single object types. Furthermore, they do not consider optimum path in KNN. In this paper, we focus on multiple type kNN whereby the interest points are of multiple types. Additionally, we also consider an optimum path to reach the interest points. We propose three different query types involving multiple object types. Our algorithms adopt the network Voronoi Diagram (NV D). We describe two ways to solve multiple types of KNN queries: one is to create NVD for each object type, and two is to create one NVD for all objects. The comparison between these two approaches is presented in performance ...展开收缩
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