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研究了铁路建设用地管理信息系统(RLMIS)中描述GIS数据不确定性程度的关键维度,描述了各个关键维度,并给出了度量公式。分析了RLMIS中正确性维度与时效性维度之间的关系,建立了RLMIS数据的一般评估算法,并分析验证了其有效性。
This paper studies the key dimensions describing the degree of uncertainty of GIS data in Railway Construction Land Management Information System (RLMIS), describes each key dimension and gives the measurement formula. The relationship between correctness dimension and timeliness dimension in RLMIS is analyzed. The general evaluation algorithm of RLMIS data is established, and its validity is verified.