X. Zhang, N. Mamoulis, D. Cheung, and Y. Shou. Proceedings of the tenth ACM SIGKDD international conference on Knowledge discovery and data mining, page 384--393. ACM, (2004)
Y. Takeuchi, and M. Sugimoto. Proceedings of the 1st International Workshop on Personalized Context Modeling and Management for UbiComp Applications (2005), page 91--100. (2005)
F. Giannotti, M. Nanni, F. Pinelli, and D. Pedreschi. Proceedings of the 13th ACM SIGKDD international conference on Knowledge discovery and data mining, page 330--339. ACM, (2007)
Q. Li, Y. Zheng, X. Xie, Y. Chen, W. Liu, and W. Ma. Proceedings of the 16th ACM SIGSPATIAL international conference on Advances in geographic information systems, page 34. ACM, (2008)
Z. Chen, H. Shen, X. Zhou, Y. Zheng, and X. Xie. Proceedings of the 2010 ACM SIGMOD International Conference on Management of data, page 255--266. ACM, (2010)
Y. Zheng, Y. Chen, X. Xie, and W. Ma. Mobile Data Management: Systems, Services and Middleware, 2009. MDM'09. Tenth International Conference on, page 357--358. IEEE, (2009)
Y. Zheng, L. Wang, R. Zhang, X. Xie, and W. Ma. Proceedings of the The Ninth International Conference on Mobile Data Management, page 211--212. Washington, DC, USA, IEEE Computer Society, (2008)