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)
University of Kent
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.
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.