A Unified Framework for Behaviour Monitoring and Abnormality Detection for Smart Home

Algorithm 2

Algorithm for local outlier factor.

Input: Database D

Output: (normalized) anomaly score for all and one d D

Phase 1: Model Construction

 for all d D do

  select condition (d)

  Model(d)build model(d, condition(d))

 end for

Phase 2: Model Comparison

 for all do

  choose reference (d)

 Score(d) compare (model(d), model(n)

 end for

Phase 3:Normalization

 if Normalization needed then

  for all d D do

   Normalized Score(X)normalize (score(d))

  end for

 end if