Research on the Fastest Detection Method for Weak Trends under Noise Interference

. 2021 Aug 22;23(8):1093. doi: 10.3390/e23081093

Algorithm 2: SNWFD-DS

DCUSUM-DS: initialize LW, SW, T,

β

Compute weights of SW and LW
Compute:

m e d S_{x}

s t d S_{x}

m e d L_{x}

s t d L_{x}

D i f_{-} m a = m e d S_{x} - m e d L_{x}

Compute:

D i f_{-} m a_{-} m e a n S_{D i f_{-} m a}

D i f_{-} m a_{-} m e a n L_{D i f_{-} m a}

D i f_{-} m a_{-} s t d S_{D i f_{-} m a}

D i f_{-} m a_{-} s t d L_{D i f_{-} m a}

D i f_{-} m a_{-} r e s u l t = D i f_{-} m a_{-} m e a n S_{D i f_{-} m a} - D i f_{-} m a_{-} m e a n L_{D i f_{-} m a}

Compute:

D i f_{-} m a_{-} m e a n S

D i f_{-} m a_{-} m e a n L

D i f_{-} m a_{-} s t d S

Whether

D i f_{-} m a_{-} r e s u l t > 0

Compute:

sum (D i f_{-} m a_{-} r e s u l t)

Compute:

Re s u l t = D i f_{-} m a_{-} m e a n L * abs (sum (D i f_{-} m a_{-} r e s u l t))

Box(Score(Result))
Whether Score >

β

Output: label VA