The attribute reduction quality, which includes reduction ratio and approximate quality, is defined to scale the reduction effectiveness.
提出约简质量的定义，从属性约简率和近似质量两方面来衡量约简效果。
In the model, approximate quality difference of two evaluations in the same level is computed by rough sets, and the importance degree is determined by difference. The model is validated by instance.
应用粗糙集理论计算相同层次两两评价指标的近似质量差，根据差的大小确定指标重要性，并通过实例证明了该模型的合理性和正确性。
To come close to, as in appearance, quality, or condition; approximate.
近乎接近，如在外貌，质量，或条件上；接近。
And then the approximate analysis that takes into account imperfect power control, activity factors and different quality requirements is used to analyze the system capacity.
随后使用这种近似分析方法讨论了在非理想功率控制、语音激活及不同服务质量下的系统容量。
Taking advantage of the neural network's approximate ability to any nonlinear system, the internal model control strategy was extended to the quality control of polymerization.
利用神经网络对非线性系统的逼近能力，把内模控制推广到聚合反应过程质量指标控制这一非线性系统中。
Taking advantage of the neural network's approximate ability to any nonlinear system, the internal model control strategy was extended to the quality control of polymerization.
利用神经网络对非线性系统的逼近能力，把内模控制推广到聚合反应过程质量指标控制这一非线性系统中。
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