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Table 1 Notations

From: Automatic ARIMA modeling-based data aggregation scheme in wireless sensor networks

Notation

Meaning

{x1, x2, …, x n }

Data series

{x1′, x2′, …, x n ′}

Stationary data series

I

Differencing order

diff({x1, x2, …, x n },I)

Execute I order of differencing operation to {x1, x2, …, xn}

variance( )

Calculate variance

ϵ

Application defined stationary threshold

δ

Application defined BIC indicator threshold