Stackoverflow is a social Q&A website. It recommends questions to users who are interesting in the topics of the question based on the tags in user profile.
This article is related to user privacy. Users' trajectory is an important information as an input in location recommendation systems. However, because it is a sensitive data, it should be protected w.r.t user privacy.
This mobile app is a social news aggregator that has recommendation engine and adaptive representation features based on your interests (in user profile). It collects implicit feedback from user interaction with the app and integrated this information o user profile.
N. Spirin, J. He, M. Develin, K. Karahalios, and M. Boucher. Proceedings of the 23rd acm international conference on conference on information and knowledge management, page 1009--1018. ACM, (2014)
C. Trattner, C. Körner, and D. Helic. Proceedings of the 11th International Conference on Knowledge Management and Knowledge Technologies, page 18. ACM, (2011)
F. Li, M. Huang, Y. Yang, and X. Zhu. Proceedings of the Twenty-Second International Joint Conference on Artificial Intelligence - Volume Volume Three, page 2488--2493. AAAI Press, (2011)
D. Song, D. Meyer, and D. Tao. Proceedings of the 21th ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, page 1105--1114. New York, NY, USA, ACM, (2015)
T. Niebler, M. Becker, D. Zoller, S. Doerfel, and A. Hotho. Proceedings of the 25th ACM International on Conference on Information and Knowledge Management, New York, NY, USA, ACM, (2016)
A. Bermingham, and A. Smeaton. Proceedings of the 19th ACM International Conference on Information and Knowledge Management, page 1833--1836. New York, NY, USA, ACM, (2010)
T. Ge, Z. Sui, and B. Chang. Proceedings of the 22nd ACM international conference on Conference on information &\#38; knowledge management, page 1493--1496. New York, NY, USA, ACM, (2013)
L. Tang, B. Long, B. Chen, and D. Agarwal. Proceedings of the 22Nd ACM SIGKDD International Conference on Knowledge Discovery and Data Mining, page 283--292. New York, NY, USA, ACM, (2016)
L. Zheng, V. Noroozi, and P. Yu. Proceedings of the Tenth ACM International Conference on Web Search and Data Mining, page 425--434. New York, NY, USA, ACM, (2017)