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。

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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。

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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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Another problem: a lawsuit claiming it stole the design for the hot-selling Two-Ball Putter. (Callaway says it bought the design fair and square from another party.) And even the luster of celebrity endorsers, including top golfer Annika Sorenstam , are little help against new rival Nike (nyse: NKE - news - people ), whose high-tech products and spokeschampion Tiger Woods are luring customers.

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