3 papers
cs.LG2025
The Maximal Overlap Discrete Wavelet Scattering Transform and Its Application in Classification Tasks
Leonardo Fonseca Larrubia, Pedro Alberto Morettin, Chang Chiann
We present the Maximal Overlap Discrete Wavelet Scattering Transform (MODWST), whose construction is inspired by the combination of the Maximal Overlap Discrete Wavelet Transform (…
stat.ME2023
Wavelet estimation of nonstationary spatial covariance function
Yangyang Chen, Pedro Alberto Morettin, Ronaldo Dias +1
This work proposes a new procedure for estimating the non-stationary spatial covariance function for Spatial-Temporal Deformation. The proposed procedure is based on a monotonic fu…
stat.ME2023
Time-varying STARMA models by wavelets
Yangyang Chen, Pedro Alberto Morettin, Chang Chiann
The spatio-temporal autoregressive moving average (STARMA) model is frequently used in several studies of multivariate time series data, where the assumption of stationarity is imp…