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Modified least squares estimators for Ornstein-Uhlenbeck processes from low-frequency observations.
Yuecai Han
Yaozhong Hu
Dingwen Zhang
Published in:
Appl. Math. Lett. (2024)
Keyphrases
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low frequency
least squares
high frequency
frequency domain
wavelet transform
subband
wavelet coefficients
discrete wavelet transform
visual quality
high resolution
computer vision
image analysis
image restoration
stochastic processes