Stay tuned for our next episode...

  • Brain Computer Interface (BCI) Systems

    This series of demos demonstrate our group's recent progress in regards to Brain Computer Interface (BCI) system. Abstract—An electroencephalography (EEG) based Brain Computer Interface (BCI) enables people to communicate with the outside world by interpreting the EEG signals of their brains to interact with intelligent devices such as wheelchairs and robots. More specifically, motor imagery EEG (MI-EEG), which reflects a subject’s active movement intent, has been attracting increasing attention in developing an EEG-based BCI system.

    Related Papers

    Xiang Zhang, Lina Yao, Dalin Zhang, Xianzhi Wang, Quan Z. Sheng and Tao Gu. Multi-Person Brain Activity Recognition via Comprehensive EEG Signal Analysis. The 14th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (Mobiquitous 2017). Melbourne, Australia Nov 7 - 10, 2017.

    Xiang Zhang, Lina Yao, Chaoran Huang, QuanZheng Sheng and Xianzhi Wang, Intent Recognition in Smart Living Through Deep Recurrent Neural Networks. The 24th International Conference On Neural Information Processing (ICONIP 2017). Guangzhou, China, November 14-18, 2017.

  • Human Activity Recognition

    This demo showcases a device-free, real-time posture recognition approach using an array of pure passive RFID tags, and it works via learning how the Received Signal Strength Indicator (RSSI) from the tag array is distributed when a person performs different postures. It can be potentially used in Fall Detection and Ambulatory Monitoring etc. (download)

    Related Papers

    Lina Yao, Quan Z. Sheng, Xue Li, Tao Gu, Mingkui Tan, Xianzhi Wang, Sen Wang and Wenjie Ruan. Compressive Representation for Device-Free Activity Recognition with Passive RFID Signal Strength. IEEE Transactions on Mobile Computing (TMC) , 2017

    Lina Yao, Feiping Nie, Quan Z. Sheng, Tao Gu, Xue Li, Sen Wang, Learning from Less for Better: Semi-Supervised Activity Recognition via Shared Structure Discovery. The 2016 ACM International Joint Conference on Pervasive and Ubiquitous Computing ( UbiComp 2016). Heidelberg, Germany, September 12-16, 2016.

    Lina Yao, Quan Z. Sheng, Xue Li, Tao Gu, Sen Wang, Wenjie Ruan and Wan Zou. Freedom: Online Activity Recognition via Dictionary-based Sparse Representation of RFID Sensing Data. The IEEE International Conference on Data Mining (ICDM 2015), Atlantic City, NJ, USA, November 14 - 17, 2015.

    Lina Yao, Quan Z. Sheng, Wenjie Ruan, Tao Gu, Xue Li, Nickolas J.G. Falkner, and Zhi Yang. RF-Care: Device-Free Posture Recognition for Elderly People Using Passive RFID Tag Array. The 12th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services (MobiQuitous 2015). Coimbra, Portugal, July 22–24, 2015.

  • Internet of Things and Smart Homes

    The series of demos showcase a series of SmartHome practices under Ubiquitous Computing envrionment, e.g., Internet of Things/Web of Things, more demos will be added from time to time. You can also visit the running example from

    Related Papers

    Lina Yao, Quan Z. Sheng, Boualem Benatallah, Schahram Dustdar, Xianzhi Wang, Ali Shemshadi and Salil Kanhere. Up in the Air: When Smart Homes Meet the Internet of Things. Computing, Springer, 2017 (to appear).

    Lina Yao, Quan Z. Sheng and Schahram Dustdar. Web-based Management of the Internet of Things. IEEE Internet Computing (IEEE Internet Computing),Vol 19, No 4, pp 60-67, July/August, 2015.

    Lina Yao, Quan Z. Sheng, Anne. H. H. Ngu and Byron Gao. Keeping You in the Loop: Enabling Web-based Things Management in the Internet of Things. The 23rd ACM International Conference on Information and Knowledge Management (CIKM 2014) , November 3-7, 2014, Shanghai, China

  • Indoor Localization and Tracking

    We showcase a novel localization and tracking system based on the Received Signal Strength (RSS) field formed by cost-efficient Radio-Frequency Identification passive tags.(download)

    Related Papers

    Wenjie Ruan, Quan Z. Sheng, Lina Yao, Tao Gu, and Longfei Shangguan, Device-Free Indoor Localization and Tracking through Human-Object Interactions.The 17th International Symposium on a World of Wireless, Mobile and Multimedia Networks ( WoWMoM 2016), Coimbra, Portugal, June 21-24, 2016.

    Lina Yao, Wenjie Ruan, Quan Z. Sheng, Xue Li and Nickolas J.G. Falkner. Exploring Tag-free RFID-based Passive Localization and Tracking via Learning-based Probabilistic Approaches. The 23rd ACM International Conference on Information and Knowledge Management (CIKM 2014) , November 3-7, 2014, Shanghai, China

    Wenjie Ruan, Lina Yao, Quan Z. Sheng, Xue Li and Nickolas J.G. Falkner. TagTrack: Device-free Localization and Tracking Using Passive RFID Tags. The 11th International Conference on Mobile and Ubiquitous Systems: Computing, Networking and Services(MobiQuitous 2014) , December 2–5, 2014 London, Great Britain

Students' Project Demos

Some project demos from students of mine

  • "Are You in a Good Mood or Bad Mood? Sensing Emotions via Your Smart Phone", Master Research Project by Guangyang Qi, 2016.

    Today, mental health becomes a serious obsession due to stress work and study environment. It is necessary to use some technology to measure people's mental status. Fortunately, smart phones equipped with built-in power sensors can be utilized as monitoring users' activities and environment information. In this project, a machine learning based application is deployed, aiming at helping people to track their mental status. Now, your smart phone helps you to know are you happy or sad.


  • "Trust-based Social Recommendation", Master Research Project by Zhen Zhu, 2015.

    Traditional social recommendation systems have a major weakness: these recommendation systems can be easily affected or cheated from malicious users who create ad hoc user profiles and provide fake ratings and reviews. In such a situation, the recommendation systems cannot be reliable. For example, astroturfers are hired by some movie companies to distort certain movie’s ratings on IMDB. This project aims at exploring novel ways on how to prevent this situation and provide more trustworthy recommendations by systematically exploiting the multi-layer trust relationships in social media.


  • "Building Harry Potter's Marauders Map via Internet of Things", Bachelor CS (Advanced) Research Project by Jack Gerrits, 2015

    “The Marauder's Map is a magical document that reveals all of Hogwarts School of Witchcraft and Wizardry. Not only does it show every classroom, every hallway, and every corner of the castle, but it also shows every inch of the grounds, as well as all the secret passages that are hidden within its walls and the location of every person in the grounds, portrayed by a dot….—— Harry Potter’s Wiki”

    This project aims at developing a Web-based application built upon Internet of Things, through which we will not only know where everyone is but we will also know what they are doing.


  • "Activity Recognition Using Embedded Sensors in Smartphones", Bachelor CS (Advanced) Research Project by Leon Chea, 2015.

    This project explores the process of developing an Android system that utilises the embedded sensors in a smartphone to recognise a number of common human actions and postures (Standing, Sitting, Walking, Lying,...). Smartphones are a widely available commercial device and using it as a basis for this project creates the possibility of future widespread usage and potential applications. The sensors used include the accelerometer, gyroscope and magnetometer, all of which are commonly found in modern smartphones.


  • "Automatically Recognize Unhealthy Use of Smartphones", Bachelor CS (Advanced) Research Project by Yuchieh (Henry) Yang, 2015.

    This project explores an automated, objective and repeatable approach for assessing problematic usage via collecting a wide range of phone usage data from smartphones, identify a number of usage features that are relevant to this assessment, and build detection models automatically detecting problematic use. For example, using phones in the darkness.