Complexity of the federated query: how many sub-operations such as filtering, joining, sorting, and so on, does the federation server need to execute to perform the query.
联合查询的复杂性：为了执行查询，联合服务器需要执行多少筛选、联接、排序之类的子操作。
Although Wiener filtering has better performance in OFDM channel estimation, it is difficult to implement, because of high complexity.
在应用于OFDM系统的信道估计方法中，维纳滤波是一种估计性能较好的算法，但是该方法计算复杂度大，不利于实现。
The goal that researchers are pursuing is to find an adaptive filtering algorithm that converges fast and has low arithmetic complexity.
寻求收敛速度快，计算复杂度低，数值稳定性好的自适应滤波算法是研究人员不断努力追求的目标。
Fast convergence rate and low computational complexity as well as good numerical stability of the adaptive filtering algorithm are the goal which we constantly strive to pursue.
寻求收敛速度快，计算复杂度低，数值稳定性好的自适应滤波算法是我们不断努力追求的目标。
Fast convergence rate and low computational complexity as well as good numerical stability of the adaptive filtering algorithm are the goal which we constantly strive to pursue.
寻求收敛速度快，计算复杂度低，数值稳定性好的自适应滤波算法是我们不断努力追求的目标。
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