Security and Communication Networks / 2019 / Article / Alg 5

Research Article

Efficient Extraction of Network Event Types from NetFlows

Algorithm 5

Extracting events from proto-events.
1: function EXTRACTEVENTS(versionSpace)
2:  events
3:  descriptions ParseDescriptions(Descriptions, Dictionary)
4:  for all protoEvent    versionSpace do
5:   flows protoEvent.flows
6:   desc (descriptions protoEvent.type)         description for event
7:   repaired = true
8:   while repaired = true do
9:    repaired = false
10:   for all formula    desc.Aggregative do
11:    if flows    formula then
12:     flows subsetSearch(formula, flows)
13:     repaired = true               set was changed redo
14:    end if
15:   end for
16:  end while
17:  if protoEvent.flows    then             valid subset was found
18:   events events    protoEvent
19:  end if
20: end for
21: return events
22: end function

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