Photo-Based User Profiling for Tourism Recommender Systems 3. Gibson, H, Yiannakis, A: Tourist roles needs and the lifecourse. Annals of Tourism Research 29(2), 358-383(2002) 4. Gretzel, U. Mitsche, N, Hwang, Y -H, Fesenmaier, D R. Tell me who you are and I will tell you where to go: Use of travel personalities in destination recommendation systems. Information Technology and Tourism 7(1), 3-12(2004) 5. Jannach, D,, Kreutler, G. Personalized user preference elicitation for e-services In Proceedings of the IEEE International Conference on e-Technology, e-Commerce and e-Service(IEEE05), Hong Kong, China, March 29-April 1, 2005, pp. 604-611 IEEE Computer Society Press, Los Alamitos(2005) 6. Mehmetoglu, M. A typology of tourists from a different angle. International Jour- nal of Hospitality &z Tourism Administration 5 (3), 69-90(2004) Rashid, A M, Albert, I, Cosley, D, Lam, S K, McNee, S.M., Konstan, J.A., Riedl, J. Getting to know you: Learning new user preferences in recommender systems. In: Proceedings of the 7th International Conference on Intelligent User Interfaces (IUI 02), pp. 127-134. ACM Press, New York(2002) 8. Ricci, F: Travel recommender systems. IEEE Intelligent Systems 17 (6),55-5 2002 9. Schein, A.I., Alexandrin Popescul, A, Ungar, L H, Pennock, D M. Methods and metrics for cold-start recommendations. In: Proceedings of the 25th Annual In- ternational ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR 02), Tampere, Finland, pp. 253-260. ACM Press, New York 10. Yiannakis, A, Gibson, H. Roles tourists play. Annals of Tourism Research 19(2),Photo-Based User Profiling for Tourism Recommender Systems 55 3. Gibson, H., Yiannakis, A.: Tourist roles – needs and the lifecourse. Annals of Tourism Research 29(2), 358–383 (2002) 4. Gretzel, U., Mitsche, N., Hwang, Y.-H., Fesenmaier, D.R.: Tell me who you are and I will tell you where to go: Use of travel personalities in destination recommendation systems. Information Technology and Tourism 7(1), 3–12 (2004) 5. Jannach, D., Kreutler, G.: Personalized user preference elicitation for e-services. In: Proceedings of the IEEE International Conference on e-Technology, e-Commerce and e-Service (IEEE’05), Hong Kong, China, March 29-April 1, 2005, pp. 604–611. IEEE Computer Society Press, Los Alamitos (2005) 6. Mehmetoglu, M.: A typology of tourists from a different angle. International Journal of Hospitality & Tourism Administration 5(3), 69–90 (2004) 7. Rashid, A.M., Albert, I., Cosley, D., Lam, S.K., McNee, S.M., Konstan, J.A., Riedl, J.: Getting to know you: Learning new user preferences in recommender systems. In: Proceedings of the 7th International Conference on Intelligent User Interfaces (IUI ’02), pp. 127–134. ACM Press, New York (2002) 8. Ricci, F.: Travel recommender systems. IEEE Intelligent Systems 17(6), 55–57 (2002) 9. Schein, A.I., Alexandrin Popescul, A., Ungar, L.H., Pennock, D.M.: Methods and metrics for cold-start recommendations. In: Proceedings of the 25th Annual International ACM SIGIR Conference on Research and Development in Information Retrieval (SIGIR ’02), Tampere, Finland, pp. 253–260. ACM Press, New York (2002) 10. Yiannakis, A., Gibson, H.: Roles tourists play. Annals of Tourism Research 19(2), 287–303 (1992)