As its name implies, the IFC needs to use the interaction data as the classification criteria.AFacebookusercanenterthe“viewactivitylog”pagetoviewhis/herprevious interaction logs, as shown in Figure 9. However,althoughFacebookallowsuserstoenterthispagetoviewtheirinteraction logs, no other method of obtaining these logs is available. Even FB API does not provide such a function. To verify the method proposed by this research, alternative methods of conveniently obtaining the interaction logs with the users’ consent are needed. To this end, the “ILReaper” program was developed. ILReaper is connected to the remote laboratory FTP platform, and is notified that thesubjecthasallowedtheprogramtoperformthetwo-stageoperation.Thefirststage extracts the user interaction logs. The subject must log into Facebook through the program and enter the “view activity log” and “friends” pages. The user’s HTML files