将圆拟合到散乱数据:参数估计没有矩
Fitting circles to scattered data: parameter estimates have no moments
摘要:
研究了一个用圆(或圆弧)拟合散乱数据的非线性回归问题。我们证明,在任何标准的假设下的统计分布的误差,通常采用在文献中,圆的中心和半径的估计有无穷大的时刻。我们还讨论了这一事实的方法论影响。
英文摘要:
We study a nonlinear regression problem of fitting a circle (or a circular arc) to scattered data. We prove that under any standard assumptions on the statistical distribution of errors that are commonly adopted in the literature, the estimates of the circle center and radius have infinite moments. We also discuss methodological implications of this fact.
机构、总结、中文摘要均由AI分析而来,可能存在错误,请以论文正文为准。