这个连接的执行计划的正确性取决于优化器对涉及到P_ RETAILPRICE的谓词将从PART的800,000行中选择多少行这一问题的估计。
The correct execution plan for this join depends on the optimizer's estimate of how many of PART's 800,000 rows will be selected by the predicate involving P_RETAILPRICE.
所有事件发生的奇怪方式都证实了这一估计的正确性。
All the strange patterns of events have borne out the correctness of this appraisal.
一切事变,都已经证明并且将继续证明这些估计的正确性。
All events have borne out and will continue to bear out the correctness of this appraisal.
所有事件都证实了这一估计的正确性。
All events have borne out the correctness of this appraisal.
为将基于窗谱估计的模型验证技术应用于金融时间序列领域,以解决金融时间序列模型的设定正确性。
Thus, the window spectrum estimation technique provides more effective model validation than the traditional back-test m.
将其用于盲源分离,通过实例证明了该方法的正确性和有效性,从而解决了盲分离中信号源个数的估计问题,为盲源分离技术的应用进一步奠定了基础。
The validity of the method in BSS is proved through experiments. Thus the method can solve the problem of estimation of signal number in BSS, it paves the way to wider application of BSS methods.
此外该算法具有收敛速度快、鲁棒性强、估计精度高等优点。通过拖曳阵和体积阵的仿真实验,验证了所提出方法的有效性和正确性。
And it is demonstrated via analysis and simulation that this method is robust to system error and has the advantage of rapid convergence rate.
进一步,对相应有限元解进行误差分析,得到其最优l 2模估计,数值实验验证了理论结果的正确性。
Furthermore, the optimal error estimates in the norm L2 are derived. Finally, Numerical experiment verifies the theoretical results.
进一步,对相应有限元解进行误差分析,得到其最优l 2模估计,数值实验验证了理论结果的正确性。
Furthermore, the optimal error estimates in the norm L2 are derived. Finally, Numerical experiment verifies the theoretical results.
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