linear least square approximation
linear least square approximation
线性最小二乘近似
以上为机器翻译结果，长、整句建议使用 人工翻译 。
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The algorithm is polynomial curve fitting based on least square approximation. The experimental result shows its performance is more effect than that of the piecewise linear algorithm.
该算法是在最小二乘意义上的多项式曲线拟合，实验结果表明，其校正效果明显优于分段线性校正算法。
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