所以问题的复杂性就是此问题所有算法的复杂性的下界(lower bound),即不会有此问题的算法比下界Tl再快了.凡是一个算法的运算时间等于该问题的Tl,此算法叫做最优的算法.
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lower bound theorem [力] 下限定理
greatest lower bound [数] 最大下界 ; [数] 最大下限 ; [数] 下确界 ; 最大下界限
Zero Lower Bound 零下限
Bhattacharyya lower bound 巴塔恰里亚下界
Cramer-Rao lower bound 克拉美一拉奥下界 ; 罗下限 ; 罗下界 ; 克拉默
asymptotic lower bound [数] 渐近下界 ; 渐近下界限
formal lower-bound [数] 形式下界
lower bound algorithm [数] 下界算法
Results show that the lower bound of their linear complexity is( p - 1)( q- 1) 2.
结果表明这类序列的线性复杂度的下界是(p-1)(q-1)2。
参考来源 - 6阶WWe give the value of the code-length n and dimension k , and the lower bound of the minimal distances of the new linear code under some particular condition.
在某些情况下,我们得到了该类线性码的码长n和维数k的取值以及最小距离d的下限。
参考来源 - 信息安全与信息可靠性研究中的编码密码理论与技术Secondly, the author gives some exact values of mb(2’ q) for some values of b, which impliesthat the above lower bound is not only the lower bound but also the infimum.
其次,对于部分b值,给出了m_b(2,q)的确切值,从而说明了上面给出的下界值不仅是下界而且是下确界。
参考来源 - Parsons图的最大团On the basis of theories of predecessor, the lower bound analytical solution of bearing capacity of single circular pile was developed.4. The shape feature of pile side friction was interpreted by load-transfer method.
并在前人的基础上,对下限解做了进一步的发展。
参考来源 - 竖向荷载下桩基工作性能研究·2,447,543篇论文数据,部分数据来源于NoteExpress
以上来源于: WordNet
Do I need to change the lower bound?
我需要改下边界值么?
So, the lower bound will be given by the plane.
所以下限是由平面决定的。
But, he pointed out, interest rates are constrained by the zero lower bound.
但是,他指出利率被零下线制约。
So the basic idea was fine, but I failed to satisfy the initial condition that the answer had to be between the lower bound and the upper bound. Right?
因此基础的思想是对的,但是程序没能满足,正确答案在给定的区间内这个条件,对不对?
Do I need to change the lower bound?
我需要改下边界值么?
So here we have energy increasing on the y-axis, and you see this straight line at the bottom here is lower down on the graph, and that's the energy of a bound electron, so that's going to be a low stable energy.
这里我们看到能量沿着y轴增加,而且在这张图片上,这条直线在底部是降低的,那是一个束缚电子的能量,所以那是一个低稳态能量。
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