When the data dimensionality is reduced 90% by using the proposed method, the overall classification accuracy of nine classes of ground cover reaches 80.2%.
利用该方法进行处理，当高光谱数据维数降低了90%时，9类地物分类实验的总体分类精度可以达到80.2%。
The generation background and the classification principle of mass filling method are analyzed from the aspects of ground pressure control and production process.
从地压管理和生产工艺过程方面分析了阶段充填采矿法的产生背景和划分依据。
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