School of Engineering and Digital Arts

Christos Efstratiou is a Lecturer at the School of Engineering and Digital Arts, University of Kent. He received his Ph.D. from Lancaster University, UK. He has been a Senior Research Associate at the University of Cambridge, a Research Associate at Lancaster University and a visiting researcher at Sony Electronics Distributed Systems Lab in San Jose. His early work focused on the support for adaptive and context-aware applications in mobile environments. More recently, he has been actively involved in research projects in the areas of pervasive computing, and mobile and embedded sensing. In his current work, he is targeting the areas of social and people-centric sensing and the challenges emerging by the fusion of mobile phone sensing, with sensing technologies embedded in the environment.

​Recent Professional Service

  • Organizing Committee Member for the Int. ACM Workshop on Mobile Computing Systems and Applications (HOTMOBILE 2014)
  • Program Committee Member for the IEEE Pervasive Computing and Communication Conference (PerCom 2014)
  • Program Committee Member for the Int. Workshop on Pervasive Urban Crowdsensing Architecture and Applications (PUCAA 2013)
  • Program Committee Member for the Int. ACM Workshop on Wireless Network Testbeds, Experimental evaluation and Characterization (WiNTEC 2013)
  • Program Committee Member for 5th ACM HotPlanet Workshop (HOTPLANET 2013)
  • Program Committee Member for the IEEE International Symposium on Mobile Cloud, Computing and Service Engineering (MobileCloud 2013)
  • Organizing Committee Member for the Int. ACM Workshop on Mobile Computing Systems and Applications (HOTMOBILE 2013)
  • Program Committee Member for the IEEE Pervasive Computing and Communication Conference (PerCom 2013)

Contact Information

Address

Room 1.49
Jennison Building
University of Kent
Canterbury
Kent
CT2 7NT

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Current Projects

Epilepsy Networks

One of the challenges in the delivery of high quality care to people with epilepsy is the accurate collection and analysis of information about their condition, and possible seizures, throughout their daily life. The aim of the project is to develop a platform for connecting patients, family, hospital teams and community staff around an innovative, shared digital record that includes input from the patients and their families. The objective is to link sources of information scattered through the community of health practitioners and family, along with new sources captured through smartphone sensing and social tracking, into a cohesive dataset which is secure but accessible at the point of care, wherever that is provided. The project will deliver a means for patients and their families to record important aspects of their condition electronically, using smartphones and wearable technologies, and prospectively share this with their doctors so that potential problems can be picked up before they escalate to an emergency. Moreover, the project aims to include a link to local guidelines and decision support tools to ensure that non-specialist healthcare professionals are supported in making care seamless. 

Fusion of mobile phone sensing and sensors in the environment

The availability of a wide range of sensing technologies in our everyday environment presents an opportunity to enrich mobile sensing applications with fine-grained real-world sensing. The fusion of both mobile and sensing in the environment offers opportunities to achieve better accuracy for people-centric applications, as well as new strategies for reducing energy consumption on mobile devices. However, the introduction of passive sensing into people-centric sensing applications disrupts the traditional, user-initiated input to sensing services, raising both privacy and acceptability concerns.

Social interactions in the workplace

In many work environments, serendipitous interactions between members of different groups may lead to enhanced productivity, collaboration and knowledge dissemination. In this work the aim is to explore the use of wireless sensing technologies to capture social interaction in workplaces. Further analysis of the real social network of face-to-face interactions can reveal new insights on how social ties are created in a working environment, and how teams and individuals can collaborate and influence each other.

Wireless Sensing in Construction

Exploring the technical challenges of building wireless sensor networks for structural monitoring. The aim is to desing a reliable system for wireless sensing, reliying on the use of open standards such as 6LoWPAN that can facilitate interoperability and integration of a diverce range of sensing devices. Current work involves the deployment of a 6LoWPAN based sensor network in an old Post-Office tunnel in London, monitoring the displacement of the rings of metal that constitute the tunnel.

FRESNEL: Federated Secure Sensor Network Laboratory

With FRESNEL we aim to build a large scale federated sensor network framework with multiple applications sharing the same resources. We want to guarantee a reliable intra-application communication as well as a scalable and distributed management infrastructure. Orthogonally, privacy and application security should also be maintained.

 

Past Projects

NEMO: Networked Embedded Models and Memories of Physical Work Activity

The NEMO project is an EPSRC-funded collaborative effort by the Departments of Computing, Management Science and Psychology at Lancaster University aimed at the inter-disciplinary investigation of ubiquitous computing technologies and embedded wireless systems for industrial workplaces. The focal point of the project is the development and use of 'smart artefacts', i.e. work-related objects such as tools and containers augmented with embedded computing, sensing and wireless communication capabilities.

e-Campus: A Research Network of Public Displays

The Lancaster University e-Campus project is developing a campus wide infrastructure of public displays designed to enhance campus life and to provide a research infrastructure for new applications on public networked displays. To date they have deployed over 50 displays ranging from small 'door plate' displays, through 40inch LCD panels up to 40foot wall displays on highly visible locations throughout the campus of the Lancaster University. Each display is equipped with at least one Bluetooth scanner and can be modified to support multiple sensing devices such as cameras or microphones. The system provides a software platform, which enables content creators to develop own applications and experiments.

GUIDE: Context-Aware Electronic Tourist Guide

The GUIDE project is developing hand-held computer based tourist GUIDEs for visitors to Lancaster. These GUIDEs are context-sensitive. In other words, they have knowledge of their physical location and their user's preferences. They can use this knowledge to display information and perform services specific to both a user and a location. For example, if a user is interested in history, the GUIDE unit is able to construct a walking tour which takes account of this interest. The unit gives the user directions on how to get from one location to the next. As the user arrives at each destination the unit describes what is being seen from a historical perspective.

Publications

View a full list in the Kent Academic Repository

Article:
Nawaz, Sarfraz, Efstratiou, Christos, Mascolo, Cecilia. 2016, Smart Sensing Systems for the Daily Drive. IEEE Pervasive Computing
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Efstratiou, Christos, Rachuri, Kiran, Das, Sajal. 2015, IEEE PerCom 2015. IEEE Pervasive Computing
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Rachuri, Kiran, Efstratiou, Christos, Leontiadis, Ilias, Mascolo, Cecilia, Rentfrow, Peter J.. 2014, Smartphone sensing offloading for efficiently supporting social sensing applications. Pervasive and Mobile Computing
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Friday, Adrian, Davies, Nigel, Efstratiou, Christos. 2012, Reflections on Long-Term Experiments with Public Displays. IEEE Computer
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Büscher, Monika, Coulton, Paul, Efstratiou, Christos, Gellersen, Hans, Hemment, Drew, Mehmood, Rashid, Sangiorgi, Daniela. 2009, Intelligent Mobility Systems: Some Socio-technical Challenges and Opportunities. Communications Infrastructure. Systems and Applications in Europe
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Cheverst, Keith, Davies, Nigel, Mitchell, Keith, Efstratiou, Christos. 2001, Using Context as a Crystal Ball: Rewards and Pitfalls. Personal and Ubiquitous Computing
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Costaridou, L., Panayiotakis, G., Efstratiou, Christos, Papnikolaou, C., Palikarakis, N.. 1997, A Layered Architecture for Computer-based simulation supporting skills learning: an X-ray imaging paradigm. Medical Informatics
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Conference item:
Lee, James Alexander, Efstratiou, Christos, Bai, Lu. 2016, OSN Mood Tracking: Exploring the Use of Online Social Network Activity as an Indicator of Mood Changes. Workshop on Mental Health Sensing and Intervention in conjunction with UBICOMP'16
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Bai, Lu, Efstratiou, Christos, Ang, Chee Siang. 2016, weSport: Utilising Wrist-Band Sensing to Detect Player Activities in Basketball Games. WristSense 2016: Workshop on Sensing Systems and Applications Using Wrist Worn Smart Devices (co-located with IEEE PerCom 2016)
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Brown, Chloë, Efstratiou, Christos, Leontiadis, Ilias, Quercia, Daniele, Mascolo, Cecilia, Scott, James, Key, Peter. 2014, The Architecture of Innovation: Tracking Face-to-Face Interactions with UbiComp Technologies. ACM International Joint Conference on Pervasive and Ubiquitous Computing (UbiComp 2014)
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Brown, Chloë, Efstratiou, Christos, Leontiadis, Ilias, Quercia, Daniele, Mascolo, Cecilia, Scott, James, Key, Peter. 2014, The architecture of innovation:Tracking Face-to-Face Interactions with UbiComp Technologies. UbiComp '14 Proceedings of the 2014 ACM International Joint Conference on Pervasive and Ubiquitous Computing
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Brown, Chloë, Efstratiou, Christos, Leontiadis, Ilias, Quercia, Daniele, Mascolo, Cecilia. 2014, Tracking serendipitous interactions: how individual cultures shape the office. 17th ACM conference on Computer supported cooperative work & social computing
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Nawaz, Sarfraz, Efstratiou, Christos, Mascolo, Cecilia. 2013, ParkSense: A Smartphone Based Sensing System For On-Street Parking. Proceedings of the 19th ACM International Conference on Mobile Computing and Networking (MOBICOM 2013)
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Rachuri, Kiran, Efstratiou, Christos, Leontiadis, Ilias, Mascolo, Cecilia, Rentfrow, Peter J.. 2013, METIS: Exploring mobile phone sensing offloading for efficiently supporting social sensing applications. Proceedings of the IEEE International Conference on Pervasive Computing and Communications (PERCOM 2013)
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Nawaz, Sarfraz, Efstratiou, Christos, Mascolo, Cecilia, Soga, Kenichi. 2012, Social sensing in the field: challenges in detecting social interactions in construction sites. MCSS '12 1st ACM workshop on Mobile systems for computational social science
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Hossmann, Theus, Efstratiou, Christos, Mascolo, Cecilia. 2012, Collecting big datasets of human activity one checkin at a time. HotPlanet '12, 4th ACM international workshop on Hot topics in planet-scale measurement
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Efstratiou, Christos, Leontiadis, Ilias, Picone, Marco, Rachuri, Kiran, Mascolo, Cecilia, Crowcroft, Jon. 2012, Sense and Sensibility in a Pervasive World. Proceedings of 10th International Conference on Pervasive Computing (PERVASIVE 2012)
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Leontiadis, Ilias, Efstratiou, Christos, Mascolo, Cecilia, Crowcroft, Jon. 2012, SenShare: Transforming Sensor Networks into Multi-application Sensing Infrastructures. Proceedings of the 9th European Conference on Wireless Sensor Networks (EWSN 2012).
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Leontiadis, Ilias, Efstratiou, Christos, Picone, Marco, Mascolo, Cecilia. 2012, Don't kill my ads! balancing privacy in an ad-supported mobile application market. Twelfth Workshop on Mobile Computing Systems & Applications
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Vallina-Rodriguez, Narseo, Efstratiou, Christos, Xie, Geoffrey, Crowcroft, Jon. 2011, Enabling opportunistic resources sharing on mobile operating systems: benefits and challenges. 3rd ACM workshop on Wireless of the students, by the students, for the students
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Clinch, Sarah, Davies, Nigel, Friday, Adrian, Efstratiou, Christos. 2011, Reflections on the long-term use of an experimental digital signage system. 13th ACM International Conference on Ubiquitous Computing (UBICOMP 2011)
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Efstratiou, Christos. 2010, Challenges in Supporting Federation of Sensor Networks. NSF/FIRE Workshop on Federating Computing Resources
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Efstratiou, Christos, Leontiadis, Ilias, Mascolo, Cecilia, Crowcroft, Jon. 2010, A shared sensor network infrastructure. SenSys '10, 8th ACM Conference on Embedded Networked Sensor Systems
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Kriegel, Johannes, Jehle, Franziska, Efstratiou, Christos, Zaad, Lambert, Heppner, Janina, Hupp, Jürgen. 2009, Smart Design for Human Performance in the Office of the Future "“ Requirements towards Services and Technical Advises for Tomorrows Office Work. AmI 2008 Workshops
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Fitton, Daniel, Sundramoorthy, Vasughi, Kortuem, Gerd, Brown, James L., Efstratiou, Christos, Finney, Joe, Davies, Nigel. 2008, Exploring the Design of Pay-Per-Use Objects in the Construction Domain. Proceedings of the Third European Conference on Smart Sensing and Context (EuroSSC 2008)
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Efstratiou, Christos, Davies, Nigel, Kortuem, Gerd, Finney, Joe, Hooper, Rob, Lowton, Mark. 2007, Experiences of Designing and Deploying Intellignent Sensor Nodes to Monitor Hand-Arm Vibrations in the Field. ACM MobiSys 2007
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Davies, Nigel, Efstratiou, Christos, Finney, Joe, Hooper, Rob, Kortuem, Gerd, Lowton, Mark. 2007, Sensing Danger - Challenges in Supporting Health and Safety Compliance in the Field. Eighth IEEE Workshop on Mobile Computing Systems and Applications, 2007. HotMobile 2007.
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Brown, James L., Finney, Joe, Efstratiou, Christos, Green, Ben, Davies, Nigel, Lowton, Mark, Kortuem, Gerd. 2007, Network interrupts: supporting delay sensitive applications in low power wireless control networks. CHANTS '07 The second ACM workshop on Challenged networks
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Davies, Nigel, Efstratiou, Christos, Finney, Joe, Hooper, Rob, Kortuem, Gerd, Lowton, Mark, Strohbach, M.. 2006, Health and Safety Compliance in the Field. MobiSys2006, 4th international conference on mobile systems, applications and services
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Efstratiou, Christos, Friday, Adrian, Davies, Nigel, Cheverst, Keith. 2002, Utilising the event calculus for policy driven adaptation on mobile systems. Third International Workshop on Policies for Distributed Systems and Networks
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Efstratiou, Christos, Friday, Adrian, Davies, Nigel, Cheverst, Keith. 2002, A platform supporting coordinated adaptation in mobile systems. Proceedings Fourth IEEE Workshop on Mobile Computing Systems and Applications, 2002.
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Davies, Nigel, Cheverst, Keith, Efstratiou, Christos, Friday, Adrian. 2001, The Rational for Infrastructure Support for Adaptive and Context-Aware Applications: A Position Paper. NSF Workshop on Infrastructure for Mobile and Wireless Systems
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Blair, Lynne, Blair, Gordon S., Pang, Jianxiong, Efstratiou, Christos. 2001, `Feature' Interactions outside a Telecom Domain. Workshop on Feature Interactions in Composed Systems, ECOOP2001
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Efstratiou, Christos, Cheverst, Keith, Davies, Nigel, Friday, Adrian. 2001, An Architecture for the Effective Support of Adaptive Context-Aware Applications. Mobile Data Management (MDM'01)
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Cheverst, Keith, Efstratiou, Christos, Davies, Nigel, Friday, Adrian. 2000, Architectural Ideas for the Support of Adaptive Context-Aware Applications. Proceedings of Workshop on Infrastructure for Smart Devices - How to Make Ubiquity an Actuality, HUC'00
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Efstratiou, Christos, Cheverst, Keith. 2000, Reflection: A Solution For Highly Adaptive Mobile Systems. Workshop on Reflective Middleware
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Cheverst, Keith, Davies, Nigel, Mitchell, Keith, Friday, Adrian, Efstratiou, Christos. 2000, Developing a context-aware electronic tourist guide. Proceedings of the SIGCHI conference on Human Factors in Computing Systems
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Costaridou, L., Panayiotakis, G., Efstratiou, Christos, Sakellaropoulos, P., Cavouras, D., Kalogeropoulos, C., Varakis, K., Giannakou, L., Dimopoulos, J.. 1997, PRONET Services for Distance Learning in Mammographic Image Processing. XIII International Congress of the European Federation for Medical Informatics (MIE'97)
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Costaridou, L., Papnikolaou, C., Efstratiou, Christos, Hatzis, K., Palikarakis, N., Panayiotakis, G.. 1996, Modelling X-Ray Imaging Procedures: A Tool for Generating Learning Tasks. XII International Congress of the European Federation for Medical Informatics (MIE'96)
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Other:
Buscher, M., Coulton, Paul, Efstratiou, Christos, Gellersen, Hans, Hemment, Drew. 2012, Connected, computed, collective: Smart Mobilities.
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Kortuem, Gerd, Alford, David, Ball, Linden, Busby, Jerry, Davies, Nigel, Efstratiou, Christos, Finney, Joe, White, Marian Iszatt, Kinder, Katharina. 2007, Sensor Networks or Smart Artifacts? An Exploration of Organizational Issues of an Industrial Health and Safety Monitoring System. UbiComp 2007: Ubiquitous Computing
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. 2008, Constructing Ambient Intelligence.
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Efstratiou, Christos, Cheverst, Keith, Davies, Nigel, Friday, Adrian. 2000, Architectural Requirements for the Effective Support of Adaptive Mobile Applications. Work in progress paper in Middleware2000
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Raverdy, PG, Davies, N., Storz, O, Efstratiou, Christos. 2009, System and method for effectively providing user information from a user device.
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Raverdy, PG, Davies, N., Storz, O, Efstratiou, Christos. 2005, System and method for selectively providing information to a user device.
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Raverdy, PG, Davies, N., Storz, O, Efstratiou, Christos. 2005, System and method to support gaming in an electronic network.
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Raverdy, PG, Davies, N., Storz, O, Efstratiou, Christos. 2001, System and method for streaming video information to a user device.
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Efstratiou, Christos. 2004, Coordinated Adaptation for Adaptive Context-aware Applications.
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Efstratiou, Christos. 1998, A Tool for Video and Audio Synchronisation Over the Internet.
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School of Engineering and Digital Arts, Jennison Building, University of Kent, Canterbury, Kent, CT2 7NT

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Last Updated: 23/01/2017