Discord discovery using Matrix Profile

Discord discovery using Matrix Profile doi:10.32614/RJ-2020-021

Usage

hdis_mp(mode = "stamp", w, qtd)

Arguments

mode

mode of computing distance between sequences. Available options include: "stomp", "stamp", "simple", "mstomp", "scrimp", "valmod", "pmp"

w

word size

qtd

number of occurrences to be classified as discords

Value

hdis_mp object

Examples

library(daltoolbox)

#loading the example database
data(examples_motifs)

#Using sequence example
dataset <- examples_motifs$simple
head(dataset)
#>       serie event
#> 1 1.0000000 FALSE
#> 2 0.9939124 FALSE
#> 3 0.9275826 FALSE
#> 4 0.8066889 FALSE
#> 5 0.6403023 FALSE
#> 6 0.4403224 FALSE

# setting up discord discovery method
model <- hdis_mp("stamp", 4, 3)

# fitting the model
model <- fit(model, dataset$serie)

detection <- detect(model, dataset$serie)
#> Finished in 0.03 secs

# filtering detected events
print(detection[(detection$event),])
#>    idx event  type seq seqlen
#> 47  47  TRUE motif   1      4
#> 53  53  TRUE motif   1      4
#> 72  72  TRUE motif   1      4
#> 78  78  TRUE motif   1      4