CPR recovers periodic structure in LDP-perturbed time series via multi-scale period probing, phase-matched aggregation, and EM-KDE denoising, achieving lower reconstruction error than baselines especially at low privacy budgets.
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Period-conscious Time-series Reconstruction under Local Differential Privacy
CPR recovers periodic structure in LDP-perturbed time series via multi-scale period probing, phase-matched aggregation, and EM-KDE denoising, achieving lower reconstruction error than baselines especially at low privacy budgets.