A Spatial-Contextual Indoor Trajectory Prediction Approach via Hidden Markov Models

Algorithm 1

Wi-Fi access point grouping algorithm.

input: A linklist storing the access points and similarity threshold

output: A set of groups satisfying the condition with respect to

1: ;

2: fordo

3:  if Tlink[i].visit TRUE then

4:   CONTINUE;

5:  else

6:   TLink[i].id = groupNum;

7:   TLink[i].visit = TRUE;

8:   Create a new group

9:   .append(TLink[i]);

10:  end if

11:  for to do

12:   if Tlink[j].visit==TRUE then

13:    CONTINUE;

14:   end if

15:   ifthen

16:    Tlink[j].id = groupNum;

17:    Tlink[j].visit = TRUE;

18:    .append(TLink[j])

19:    end if

20:  end for

21:  : end for

23: Return