Human Activity Recognition in AAL Environments Using Random Projections

Pseudocode 1

Pseudocode of FindBestProjection.

ALGORITHM: FindBestProjection

INPUT:     data1, data2 – data for class1 and class2 [nxm matrices]

         threshold – iterating parameter

OUTPUT: bestProjection

BEGIN

 Jaccard = MAXINT;

 WHILE (Jaccard > threshold)

  generate Random Projection matrix projection

  project m-dimensional data1 & data2 into 2D pdata1 & pdata2

  FOREACH dimension of pdata1 & pdata2

   calculate kernel density distributions

   calculate Jaccard intersection of pdata1 & pdata2

  END FOREACH

  Memorize bestProjection with smallest Jaccard

 END

RETURN bestProjection

END