Please see my webpage for more information about my research and publications.

• GaitLock: Protect Virtual and Augmented Reality Headsets Using Gait.
  Yiran Shen, Hongkai Wen, Chengwen Luo, Weitao Xu, Tao Zhang, Wen Hu and Daniela Rus.
  IEEE Transactions on Dependable and Secure Computing (TDSC), to appear, 2018.
• Efficient Indoor Positioning with Visual Experiences via Lifelong Learning.
  Hongkai Wen, Ronald Clark, Sen Wang, Xiaoxuan Lu, Bowen Du, Wen Hu and Niki Trigoni.
  IEEE Transactions on Mobile Computing (TMC), to appear, 2018.
• Shake-n-Shack: Enabling Secure Data Exchange Between Smart Wearables via Handshakes.
  Yiran Shen, Fengyuan Yang, Bowen Du, Weitao Xu, Chengwen Luo and Hongkai Wen*
  In the 2018 International Conference on Pervasive Computing and Communications (PerCom'18) , 2018.
• Snoopy: Sniffing Your Smartwatch Passwords via Deep Sequence Learning.
  Chris Xiaoxun Lu, Bowen Du, Hongkai Wen*, Sen Wang, Andrew Markham, Ivan Martinovic, Yiran Shen and Niki Trigoni.
  Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT) 1(4), 152: pp. 1-29, 2017
• End-to-end, sequence-to-sequence probabilistic visual odometry through deep neural networks.
  Sen Wang, Ronald Clark, Hongkai Wen and Niki Trigoni.
  The International Journal of Robotics Research (IJRR), 0278364917734298: pp. 1-33, 2017.
• VidLoc: A Deep Spatio-Temporal Model for 6-DoF Video-Clip Relocalization.
  Ronald Clark, Sen Wang, Hongkai Wen, Andrew Markham and Niki Trigoni.
  In the 30th IEEE Conference on Computer Vision and Pattern Recognition (CVPR'17), 2017.
• SCAN: Learning Speaker Identity From Noisy Sets of Sensor Data.
  Xiaoxuan Lu, Hongkai Wen, Sen Wang, Andrew Markham and Niki Trigoni.
  In the 16th ACM/IEEE International Conference on Information Processing in Sensor Networks (IPSN'17), 2017.
• DeepVO: Towards End-to-End Visual Odometry with Deep Recurrent Convolutional Neural Networks.
  Sen Wang, Ronald Clark, \textbf{Hongkai Wen} and Niki Trigoni.
  In the 2017 IEEE International Conference on Robotics and Automation(ICRA'17) , 2017
• VINet: Visual-Inertial Odometry as a Sequence-to-sequence Learning.
  Ronald Clark, Sen Wang, Hongkai Wen, Andrew Markham and Niki Trigoni.
  In the Thirty-First AAAI Conference on Artificial Intelligence (AAAI'17) , 2017.
• Keyframe based Large-scale Indoor Localisation Using Geomagnetic Field and Motion Pattern.
  Sen Wang, Hongkai Wen, Ronald Clark and Niki Trigoni.
  In the IEEE/RSJ International Conference on Intelligent Robots and Systems (IROS'16), IEEE, 2016.
• Accurate Positioning via Cross-Modality Training.
  Savvas Papaioannou, Hongkai Wen, Zhuoling Xiao, Andrew Markham and Niki Trigoni.
  In the 13th ACM Conference on Embedded Networked Sensor Systems (SenSys'15), pp. 239-251. ACM, 2015.
• Opportunistic Radio Assisted Navigation for Autonomous Ground Vehicles.
  Hongkai Wen, Yiran Shen, Savvas Papaioannou, Winston Churchill, Niki Trigoni and Paul Newman.
  In the 11th International Conference on Distributed Computing in Sensor Systems (DCOSS'15), pp. 21-30. IEEE, 2015.
• Accuracy Estimation for Sensor Systems.
  Hongkai Wen, Zhuoling Xiao, Andrew Markham and Niki Trigoni.
  IEEE Transactions on Mobile Computing (TMC) 14(7), pp. 1330-1343, 2015.
• Robust Indoor Positioning with Lifelong Learning.
  Zhuoling Xiao, Hongkai Wen , Andrew Markham and Niki Trigoni.
  IEEE Journal on Selected Areas in Communications (JSAC) 33(11), pp. 2287-2301, 2015.
• Indoor Tracking Using Undirected Graphical Models.
  Zhuoling Xiao, Hongkai Wen, Andrew Markham and Niki Trigoni.
  IEEE Transactions on Mobile Computing (TMC) 14(11), pp. 2286-2301, 2015.
• Non-Line-of-Sight Identification and Mitigation Using Received Signal Strength.
  Zhuoling Xiao, Hongkai Wen, Andrew Markham, Niki Trigoni, Phil Blunsom and Jeff Frolik.
  IEEE Transactions on Wireless Communications (TWC) 14(3), pp. 1689-1702, 2015.
• Comparison of Accuracy Estimation Approaches for Sensor Networks.
  Hongkai Wen, Zhuoling Xiao, Andrew Symington, Andrew Markham and Niki Trigoni.
  In the 9th International Conference on Distributed Computing in Sensor Systems (DCOSS'13), 2013.
• Lightweight map matching for indoor localization using conditional random fields.
  Zhuoling Xiao, Hongkai Wen, Andrew Markham and Niki Trigoni.
  In the 13th International Conference on Information Processing in Sensor Networks (IPSN'14), 2014. ( Best Paper Award, 2 in 111 submissions )
• On Assessing the Accuracy of Indoor Positioning Systems.
  Hongkai Wen, Zhuoling Xiao, Andrew Markham and Niki Trigoni.
  In the 10th European conference on Wireless Sensor Networks (EWSN'13), 2013. ( Best Paper Award, 1 in 51 submissions )
• Ranking Query Answers in Probabilistic Databases: Complexity and Efficient Algorithms.
  Dan Olteanu and Hongkai Wen.
  In the 28th International Conference on Data Engineering (ICDE'12), 2012. (acceptance rate: 17%)
• Operational Transformation for Orthogonal Conflict Resolution in Real-time Collaborative 2D Editing Systems.
  Chengzheng Sun, Hongkai Wen and Hongfei Fan.
  In the 2012 ACM Conference on Computer Supported Cooperative Work (CSCW'12), 2012.