Although ML-EM is a perfect reconstruction algorithm, its slow convergence rate its direct use in practice.

Purpose : compare influence on positrontomography ( PET ) reconstruction image quality and convergence rate of different subsets.

目的 分析比较不同子集的选取对PET重建图像质量以及重建收敛速度的影响.

The strategy of path exchanging can improve convergence rate and capacity of searching optimal solution.

引入路径交换策略提高蚁群算法的收敛速度和寻优能力.

The convergence rate of deterministic signal is slower than the one of uncorrelated signal.

确定性信号的收敛速率慢于不相关信号的速率.

Furthermore, this method rapid convergence rate and good stability.

此外, 该算法收敛快,稳定性好.

The preferences a great impact on convergence rate of the known algorithm.

在原算法中,步长参数的设计对其恢复效果和收敛速度影响较大.

From the definition of uniform convergence of function sequence, another form of definition discriminating is obtained.

从函数列一致收敛的定义出发, 得出了定义判别法的另一种形式.

The author also studies the relationship between internally closed uniform bound and internally closed uniform convergence.

在论证过程中充分利用了解析函数的性质,系统推导了内闭一致有界与内闭一致收敛的关系.

In these areas, the uniform convergence concepts play an important role.

在这些方面, 一致收敛的概念起着重要的作用.

Then uniform convergence analysis is carried out for the proposed algorithm.

并对提出的算法做了一致收敛性分析.

The third part is the criterion of uniform convergence, commonly used methods.

第三部分就是本文的正题,判别一致收敛的常用方法.

The question came up in conversation.

这个问题在谈话中提出了.

She does not shine in conversation, ie is not a good talker.

她不擅长谈话.

He is easy in conversation and graceful in manner.

他谈吐从容,举止优雅.

They tried to engage him in conversation.

他们试图跟他交谈。

It's none of your business, the young man said rudely , This is a private conversation!

那男青年却粗暴地说 ∶这 与你无关.我们是私人谈话.

I seldom saw her alone, and had very little private conversation with her.

我难得单独见到她, 也很少跟她个别交谈.

This is a private conversation.

这是私人谈话.

The waiters kept pushing in on a private conversation I was having.

侍者们粗暴地打断了我的私人谈话.

Are you willing to try to start a conversation an English speaker?

你是否愿意开始试着用英语与人交谈?

Be proactive and start a conversation your partner prefers to speak.

要积极并且谈论你的另一半喜欢喜欢的话题.