An empirical study of spatial and transpatial social networks using Bluetooth and Facebook (2009)
This study provides insights into the quantitative similarities, differences and relationships between users' spatial, face-to-face, urban social networks and their transpatial, online counterparts....
Is the crowd's wisdom biased? A quantitative asessment of three online communities (2009)
This paper presents a study of user voting on three websites: Imdb, Amazon and BookCrossings. It reports on an expert evaluation of the voting mechanisms of each website and a quantitative data...
Can we do without GUIs? Gesture and speech interaction with a patient information system (2009)
Manasawee Kaenampornpan, Vassilis Kostakos, Andrew Warr, Dawn Woodgate, Bath Ba Ay
We have developed a gesture input system that provides a common interaction technique across mobile, wearable and ubiquitous computing devices of diverse form factors. In this paper, we combine our...
Understanding and measuring the urban pervasive infrastructure (2009)
Kostakos, Vassilis, Nicolai, T., Yoneki, E., O'Neill, Eamonn, Kenn, H., Crowcroft, J.
The increasing popularity of mobile computing devices has allowed for new research and application areas. Specifically, urban areas exhibit an elevated concentration of such devices enabling...
A conceptual framework for designing and analyzing pervasive systems describes three aspects of these systems in the urban environment—architectural space, interaction space, and information...
Manasawee Kaenampornpan, Vassilis Kostakos, Andy Warr, Benerecetti Et Al
In a mobile and ubiquitous computing environment, the interfaces become smaller to disappearing. Moreover, the user’s attention may be divided between several activities and devices. Context...
A Novel Approach for Identification and Authentication of Users in a (2008)
Pervasive Environment Stavros, Stavros Garzonis, Vassilis Kostakos, Manasawee Kaenampornpan, Andy Warr
this paper as Garzonis, S., O'Neill, E., Kostakos, V., Kaenampornpan, M., and Warr, A. (2004)
Interacting With Mobile and Pervasive Computer (2008)
Systems Vassilis Kostakos, Vassilis Kostakos
this paper we present existing and ongoing research within the Human-Computer Interaction group at the University of Bath into the development of novel interaction techniques. With our research we...
Th Of October, Vassilis Kostakos
this paper consisted of three students, ours consisting of Ioannis Christaras, Vassilis Kostakos, and Panagiotis Fournarakis
Easing the Wait in the Emergency Room: Building a (2008)
Theory Of Public, Dawn Woodgate, Vassilis Kostakos
In this paper we discuss a real world problem encountered during recent fieldwork: that of providing information in public settings when the information has both public and private components. We...
M. Hazas, J. Krumm, and T. Strang (Eds.): LoCA 2006, LNCS 3987, pp. 222 -- 238, 2006. (2008)
Vassilis Kostakos, Anuroop Shahi
We describe an application used to share context and build common ground between nearby users. Our application runs on mobile devices and allows users securely to exchange the contents of their...
Capturing and visualising Bluetooth encounters (2008)
Vassilis Kostakos, Eamonn O’Neill
In this paper we describe the development of a platform that enables us to systematically study online social networks alongside their real-world counterparts. Our system, entitled Cityware, merges...
RFID in Pervasive Computing: State-of-the-art and Outlook (2008)
George Roussos, Vassilis Kostakos
rfid has already found its way into a variety of large scale applications and arguably it is already one of the most successful technologies in the history of computing. Beyond doubt, rfid is an...
Vassilis Kostakos, Tim Kindberg, Alan Penn, Danaë Stanton Fraser, Tim Jones
Abstract. We approach the design of ubiquitous computing systems in the urban environment as integral to urban design. To understand the city as a system encompassing physical and digital forms and...
A Space Oriented Approach to Designing Pervasive Systems (2005)
Vassilis Kostakos And, Vassilis Kostakos
As part of a broader design framework for pervasive systems, we present here our ideas on how pervasive technologies may be integrated into the built environment. The essence of our approach is the...
A Novel Approach for Identification and Authentication of Users in a (2004)
Pervasive Environment Stavros, Stavros Garzonis, Vassilis Kostakos, Manasawee Kaenampornpan, Andy Warr
number of usernames and passwords that must be remembered would become a problem [1]. This is considered a major usability problem, with password problems representing 30% of helpdesk calls and up to...
Extending Traditional Design Approaches for Pervasive Computing (2004)
Vassilis Kostakos And, Vassilis Kostakos
this paper as Kostakos, V. and O'Neill, E. (2004) Extending Traditional Design approaches for Pervasive Computing
A Directional Stroke Recognition Technique (2003)
For Mobile Interaction, Vassilis Kostakos
This paper presents a common gestural interface to mobile and pervasive computing devices. We report our development of a novel technique for recognizing input strokes on a range of mobile and...
Vassilis Kostakos, Candidate Kostakos V, Supervisor Russell Bradford
The problem of integer factorisation has been around for a very long time. This report describes a number of algorithms and methods for performing factorisation. Particularly, the Trial Divisions and...