面向地图综合的道路网相似度计算模型

A similarity calculation model of road network for map generalization

针对地图制图综合过程中道路网相似度的定量计算问题,提出了一种顾及道路网综合过程的相似度计算模型。方法基于空间相似关系理论较好地顾及了地图综合中空间关系的相似性;利用语义权重计算总体相似度更加符合地图综合的规则。最终经由430个样本的心理认知实验结果与专业人员的心理认知结果基本一致。实验结果表明:该模型基本符合人类直观感受,且模型自动化程度较高。研究结果可适用于规模要素群的综合过程。

According to the quantitative calculation of road network similarity in the process of map generalization, this paper presented a similarity calculation model considering road network generalization.This methods based on the spatial similarity relation theory, the similarity of spatial relation in map generalization was considered. Using semantic weight to calculate the overall similarity is more in line with the rules of map generalization.According to the psychological cognition experiments of 430 samples, the calculation results of the proposed method are basically consistent with the psychological cognition results of professionals. The experimental process and results show that the model is basically consistent with human intuitive feelings, and the model is highly automated. The research results can be applied to the generalization process of scale factor group.