Recommending Locations Based on Users’ Periodic Behaviors

Algorithm 1

Mining multiple periods.

Input: S (time sequence)

st (support threshold)

ts (target state)

Out put: period (all periods in the time sequence)

begin

(1)  matrix,map, T = GeneratingMatrix (S, ts) // creating the suspected periods matrix based on the

time-stamps the target state happened

(2)  periods = MiningPeriods (matrix, st,map,T)

(3)  return periods

end