8YE M. YIN P F. LEE W C, et al. Exploiting Geogvaph- ical Influence for Collaboralive Poinl-of-hterest Recom- mendation [ C ] / Proceedings of the 34th International ACM SIGIR Conference i}n Researth and Developmenl in lntbrmation Retriewl. New York: ACM Press. 2011:325-334.
9AZUMA R T. A Survey of Augmented Reality[ J ]. Pres- ente: Teleoperators& Villua/ Envirtmmells, 1996, 6 ( 4 ) : 355-385.