The data uncertainty is one of the critical problems in GIS.
数据不确定性是GIS中的关键问题之一。
Theories and methods of geospatial special data uncertainty nowadays is one of the most important researching fields in GIS.
地理空间数据不确定性理论和方法的研究是当前GIS学科研究的热点和前沿领域之一。
The analysis of the calculation examples shows that it is feasible to forecast the power load under the effect of data uncertainty by rough set theory.
算例分析表明，应用粗集理论解决数据不确定性影响下的电力负荷预测是可行的。
This paper has summarized the basic theory for GIS spatial position data uncertainty estimation and the error propagation, and practical estimation methods.
本论文归纳总结了GIS空间位置数据不确定度估计和误差传播的基础理论和实用的估计方法。
Gray theory is a new method for researching little data, uncertainty and poor information. It has features that are simple, easy to learn, high accuracy and feasibility. It is applied very broad.
灰色系统理论是一种研究少数据、贫信息不确定性问题的新方法，它有着简便、易学、准确性和可行性高的特点，因此应用领域十分宽广。
Gray theory is a new method for researching little data, uncertainty and poor information. It has features that are simple, easy to learn, high accuracy and feasibility. It is applied very broad.
灰色系统理论是一种研究少数据、贫信息不确定性问题的新方法，它有着简便、易学、准确性和可行性高的特点，因此应用领域十分宽广。
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