... 转移网络文法 transition network grammar 转移问题 branch problem 转移系数 branching factor ...
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One hand, using neighbor joining with better theoretical guarantees as the recombining technique can improve QP; On the other hand, QPNJ can avoid the long branch problem faced by neighbor joining.
一方面利用更有理论依据的邻接法完成Q的重组可以提高QP的准确性,另一方面利用quartet估计序列之间的进化距离可以在一定程度上避免邻接法所面临的长分支问题。
参考来源 - 基于DNA序列的进化树构建算法的研究·2,447,543篇论文数据,部分数据来源于NoteExpress
Please note that if your problem concerns your Bank Payment Card, you should contact your local branch.
请注意,如果您的问题涉及您的银行支付卡,您应该联系您当地的分行。
Some orchardists have tried to control crown-shape by pruning, disbudding and branch-bending to circumvent the problem.
一些果园园主试图通过修剪,发芽和分支弯曲来控制树冠形状,以规避该问题。
A report this week by the British branch of Save the Children, an aid organisation, underlines the problem.
救助组织“拯救儿童”在英国的分支机构本周出台的一份报告使得这个问题进入视野。
With this, if I can assume that accessing the i'th element of a list is constant, then you can't see that the rest of that analysis looks just like the log analysis I did before, and each step, no matter which branch I'm taking, I'm cutting the problem down in half.
读取数组中的第i个元素,是个常量时间的操作的话,我也就能像以前那样得到,这个算法是对数级复杂度的分析,并且每一步不管我选择哪个区间,我都可以把问题的规模缩小一半。
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