Time Series Analysis

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4 domain-specific abstractions whose origin domain is Time Series Analysis.

• Bartlett's method — A power-spectrum estimator that averages periodograms from non-overlapping equal-length segments to reduce variance at the cost of frequency resolution.
• Hurst Exponent — A model-indexed scaling exponent that describes how fluctuations, partial sums, or dependence persist across increasing temporal or spatial scales.
• Time-series segmentation — The partition of an ordered signal into contiguous intervals whose observations are internally coherent according to a selected model, feature or regime.
• Trend-stationary process — A nonstationary time series that becomes stationary after subtracting a deterministic time trend.