A Framework for Spatial Interaction Analysis Based on Large-Scale Mobile Phone Data

Algorithm 3

Identification of activity points.

(1)  Input                           Mobile subscriber:

(2)                                          Set of logs in chronological sort:

(3)                                                    

(4)                                          The threshold of stay time:  min

(5)  Output                      The activity chain of mobile subscriber :

(6)                                                   

(7)  Procedure               Activity

(8)  ; ;

(9)  while do

(10) /^* Calculate the time of stationary. ^*/

(11)               

(12)              if and then

(13)                      if then

(14)                                           

(15)                      

(16)