公众参与的兴趣点数据有效性效验方法  

A verifying method on validity of POI data involving public participation

作　　者：李霖[1] 杨蕾[1] 

机构地区：[1]武汉大学资源与环境科学学院,武汉430079

出　　处：《测绘科学》2015年第7期98-103,共6页Science of Surveying and Mapping

基　　金：国家科技支撑计划项目(2012BAH35F03-06)

摘　　要：针对公众参与的兴趣点数据在有效性的处理或评判中的不足,文章以最为常见的LBS签到数据为研究目标,以兴趣点与地图上普通点要素的区别为出发点,从公众的地理空间认知和兴趣点的空间特性两方面分析影响兴趣点数据有效性的因素,由此建立有效性度量模型,最后对实验区签到数据进行了有效性计算。实验结果表明,该模型可剔除原始数据中的大量无效数据,为以公众参与方式收集的兴趣点数据的有效性提供了切实可行的评判方法。Aiming at the insufficiency of the validity processing and evaluation on Point Of Interest （POD data involving public participation, the paper took the check-in data in LBS, the most common type of publicly participated POI data, as the study case, starting from the distinction between POI factors and general points on the map, analyzed the factors that influence POI data validity through the aspects of public geospatial cognition and POI＇s spatial characteristics, then built a measurement model of validity. Finally, the validity calculation of the check-in data collected from the experimental zone was car- ried out. Result showed that the proposed model could eliminate large quantities of invalid data from the o- riginal data, thus providing an effective method for evaluating the validity of POI data collected by the public participation way.

关 键 词：POI 公众参与 有效性 LBS 签到 

分 类 号：P208[天文地球—地图制图学与地理信息工程]