Package ai.libs.jaicore.ml.tsc.complexity

This package contains implementations for time series complexity measures.

Interface Summary

Interface	Description
ITimeSeriesComplexity	Interface that describes the complexity measure of a time series.

Class Summary

Class	Description
SquaredBackwardDifferenceComplexity	Complexity metric as described in "A Complexity-Invariant Distance Measure for Time Series". $$ c = sum_{i=1}^n-1 \sqrt{ (T_i - T_{i+1})^2 }$$ where $T_i$ are the values of the time series.
StretchingComplexity	Stretching Complexity that calulates the length of a time series when stretched to a straight line. $$ c = sum_{i=1}^n-1 \sqrt{ (t_2 - t_1)^2 + (T_{i+1} - T_i)^2 }$$ where $t_i$ are the timestamps (here $t_i = i$) an $T_i$ are the values of the time series.