Trend estimation for time series with polynomial-tailed noise
多项式尾部噪声下的时间序列趋势估计AI 解读 ↓
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AI 根据所提供的论文材料归类:摘要明确研究时间序列的非参数趋势与重尾噪声处理,方法对应时间序列方向,但未说明具体宏观经济应用。
多项式尾部噪声下的时间序列趋势估计AI 解读 ↓
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For time series data observed at non-random and possibly non-equidistant time points, we estimate the trend function nonparametrically. Under the assumption of a bounded total variation of the function and low-order moment conditions on the errors we propose a nonlinear wavelet estimator which uses a Haar-type basis adapted to a possibly non-dyadic sample size. An appropriate thresholding scheme for sparse signals with an additive polynomial-tailed noise is first derived in an abstract framework and then applied to the problem of trend estimation.
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