Amir Rahmati, Earlence Fernandes, Kevin Eykholt, Xinheng Chen, Atul Prakash. Heimdall: A Privacy-Respecting Implicit Preference Collection Framework. In Tanzeem Choudhury, Steven Y. Ko, Andrew Campbell, Deepak Ganesan, editors, Proceedings of the 15th Annual International Conference on Mobile Systems, Applications, and Services, MobiSys'17, Niagara Falls, NY, USA, June 19-23, 2017. pages 453-463, ACM, 2017. [doi]