For this problem, this paper develop a new model and design the piece wise least square method and two algorithms to strip off the trend.
传统的金融时间序列认为趋势项是确定性的函数，本文对此提出一种新的模型，并且设计了分段最小二乘方法和两个算法提取出趋势路径。
A two-level learning method combining improved immune algorithm and least square method was proposed to design a radial basis function (RBF) network.
结合改进的免疫算法和最小二乘法，提出了一种设计径向基函数(RBF)网络的两级学习方法。
Represented here is one of the last square hole cash issues, marking an end to the over two thousand year tradition of using the square hole cash design.
这枚最后的方孔钱，标示著使用了两千年之久的方孔制钱设计的终结。
Represented here is one of the last square hole cash issues, marking an end to the over two thousand year tradition of using the square hole cash design.
这枚最后的方孔钱，标示著使用了两千年之久的方孔制钱设计的终结。
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