Journals

• Ferreira, D., Kostakos, V., Dey, A. (to appear). Lessons Learned From Large-Scale User Studies: Using Android Market As A Source Of Data. International Journal of Mobile HCI. [pdf]
• Ojala, T., Kostakos, V., Kukka, H., Heikkinen, T., Linden, T., Jurmu, M., Hosio, S., Kruger, F., Zanni, D. (2012). Multipurpose Interactive Public Displays in the Wild: Three Years Later. IEEE Computer 45(5):42-29. [pdf]
• Kukka, H., Kostakos, V., Ojala, T., Ylipulli, J., Suopajarvi, T., Jurmu, M., Hosio, S. (2011). This Is Not Classified: Everyday Information Seeking and Encountering in Smart Urban Spaces. Personal and Ubiquitous Computing (online first). [pdf]
• Kostakos, V. (2011). The challenges and opportunities of designing pervasive systems for deep-space colonies. Personal and Ubiquitous Computing, 15(5):479-486. [pdf]
• Kostakos, V., and Kostakos, P. (2010). Inferring social networks from physical interactions: a feasibility study. International Journal of Pervasive Computing and Communications, 6(4):423-431. [pdf]
• Kostakos, V., O'Neill, E., Penn, A., Roussos, G., Papadongonas, D. (2010). Brief encounters: sensing, modelling and visualizing urban mobility and copresence networks. ACM Transactions on Computer Human Interaction, 17(1):1-38. [pdf]
• Kostakos, V. (2009). Temporal graphs. Physica A: Statistical Mechanics and its Applications, 388(6):1007-1023. [pdf]
• Roussos, G. and Kostakos, V. (2009). RFID in Pervasive Computing: State-of-the-art and Outlook. Pervasive and Mobile Computing, 5:110-131. [pdf]
• Kostakos, V., Nicolai, T., Yoneki, E., O’Neill, E., Kenn, H. and Crowcroft, J. (2009). Understanding and measuring the urban pervasive infrastructure. Personal and Ubiquitous Computing, 13(5):355-364. [pdf]
• Kostakos, V., O'Neill, E. and Penn, A. (2006). Architectural Space, Interaction Space and Information Spheres: Designing Urban Pervasive Systems. IEEE Computer, 39(9):52-59. [pdf]
• O'Neill, E., Kaenampornpan, M., Kostakos, V., Warr, A. and Woodgate, D. (2005). Can we do without GUIs? Gesture and speech interaction with a patient information system. Personal and Ubiquitous Computing, 10(5):269-283. [pdf]
• Kostakos, V., O'Neill, E., Little, L., Sillence, E. (2005). The social implications of emerging technologies. Interacting with Computers, 17(5):475-483. [pdf]

Conference proceedings

• Linden, T., Heikkinen, T., Kostakos, V., Ferreira, D., Ojala, T. (2012). Towards Multi-Application Public Interactive Displays. In proceedings of the International Symposium on Public Displays. [pdf]
• Venkatanathan, J., Karapanos, E., Kostakos, V., Goncalves, J. (2012). Network, Personality and Social Capital. In proceedings of ACM Web Science. [pdf]
• Hosio, S., Kostakos, V., Kukka, H., Jurmu, M., Riekki, J., Ojala, T. (2012). From School Food to Skate Parks in a few Clicks: Using Public Displays to Bootstrap Civic Engagement of the Young. In Proceedings of Pervasive, Newcastle, UK. [pdf]
• Ojala, T. and Kostakos, V. (2011). UBI Challenge: Research Coopetition on Real-World Urban Computing. In proceedings of Mobile and Ubiquitous Multimedia 2011, Beijing, China, pp. 205-208. [pdf]
• Kostakos, V., Venkatanathan, J., Reynolds, B., Sadeh, N., Toch, E., Shaikh, S. A., Jones, S. (2011). Who's your best friend? Targeted privacy attacks in location-sharing social networks. In proceedings of Ubicomp 2011, Beijing, China, pp. 177-186. [pdf]
• Ferreira, D., Dey, A., Kostakos, V. (2011). Understanding Human-Smartphone Concerns: A Study of Battery Life. In proceedings of Pervasive, California, USA, pp. 19-33. [pdf]
• Rogstadius, J., Kostakos, V., Kittur, A., Smus, B., Laredo, J., and Vukovic, M. (2011). An Assessment of Intrinsic and Extrinsic Motivation on Task Performance in Crowdsourcing Markets. In proceedings of the AAAI Conference on Weblogs and Social Media, Barcelona, Spain, pp. 321-328. [pdf]
• Reynolds, B., Venkatanathan, J., Goncalves, J., and Kostakos, V. (2011). Sharing Ephemeral Information in Online Social Networks: privacy perceptions and behaviours. In proceedings of INTERACT, pp. 204-215. [pdf]
• Kukka, H., Kruger, F., Kostakos V., Ojala, T., and Jurmu, M. (2011). Information to Go: Exploring In-Situ Information Pick-up “In the Wild”. In proceedings of INTERACT, pp. 487-504. [pdf]
• Venkatanathan, J., Ferreira, D., Benisch, M., Lin, J., Karapanos, E., Kostakos, V., Sadeh, N., Toch, E. (2011). Improving users’ consistency when recalling location sharing preferences. In proceedings of INTERACT, pp. 380-387. [pdf]
• Lyra, O., Karapanos, E., Kostakos, V. (2011). Intelligent Playgrounds: Measuring and affecting social inclusion in schools. In proceedings of INTERACT, pp. 560-563. [pdf]
• Bianchi, A., Oakley, I., Kostakos, V., Kwon, D.S. (2011). The Phone Lock: Audio and Haptic shoulder-surfing resistant PIN entry methods. In proceedings of the ACM Tangible and Embedded Interaction, pp. 197-200. [pdf]
• Kostakos, V. (2011). Network science as a foundation for metrics, models and theories of large-scale pervasive systems. NSF workshop on Pervasive Computing at Scale (PeCS), Seattle, Washington, 27-28 January. [pdf]
• Kostakos, V., Camacho, T. and Mantero, C. (2010). Wireless detection of end-to-end passenger trips on public transport buses. In proceedings of the IEEE Conference on Intelligent Transportation Systems, Funchal, Portugal, pp. 1795-1800. [pdf]
• Camacho, T., Kostakos, V., and Mantero, C. (2010). A Wireless Infrastructure for Delivering Contextual Services and Studying Transport Behavior. In proceedings of the IEEE Conference on Intelligent Transportation Systems, Funchal, Portugal, pp. 943-948. [pdf]
• Kostakos, V. and Venkatanathan, J. (2010). Making friends in life and online: Equivalence, micro-correlation and value in spatial and transpatial social networks. In proceedings IEEE SocialCom, Minneapolis, USA, pp. 587-594. [pdf]
• Wagner, D., Lopez, M., Doria, A., Pavlyshak, I., Kostakos, V., Oakley, I., Spiliotopoulos, T. (2010). Hide And Seek: Location Sharing Practices With Social Media. In proceedings of MobileHCI, Lisbon, Portugal, pp. 55-58. [pdf]
• Kostakos, V. and Oakley, I. (2009). Designing Trustworthy Situated Services: an Implicit and Explicit Assessment of Locative Images’ Effect on Trust. In proceedings of Conference on Human factors in computing systems (CHI 2009), Boston, USA, pp. 329-332. [pdf]
• Kostakos, V. (2009). Is the crowd's wisdom biased? A quantitative analysis of three online communities. In proceedings of Computational Science and Engineering, August 29-31, Vancouver, Canada, 251-255. [pdf] [update]
• van Leeuwen, J.P., Oakley, I., Nunes, N.J., Nisi, V., and Kostakos, V. (2009). Sensory Social Networks to Motivate Sustainable Behaviour. In proceedings of the 12th International EuropIA Conference. Paris, France, March 18-20, pp. 45-55. [pdf]
• O'Neill, E. and Kostakos, V. (2008). Measuring urban mobility and encounter. In proceedings of Measuring Behavior 2008, Maastricht, The Netherlands, August 26-29, pp. 66-67. [pdf]
• Kindberg, T., O’Neill, E., Bevan, C., Kostakos, V., Stanton Fraser, D.S., Jay, T. (2008). Measuring Trust in Wi-Fi Hotspots. In proceedings of the conference on Human factors in computing systems (CHI 2008), Florence, Italy, pp. 173-182. [pdf]
• da Silva, M.L., Kostakos, V. and Matsumoto, M. (2008). Improving emergency response to mass casualty incidents. Percom 2008, 17-21 March, Hong Kong, pp. 256-259. [pdf]
• da Silva, M.L., Kostakos, V. and Matsumoto, M. (2007). Study on the Use of Pervasive Technology to Improve the Emergency Response to Mass Casualty Incidents.GITS GITI Forum, October 10, Tokyo, Japan. [pdf]
• Kostakos, V. and O’Neill, E. (2007). Quantifying the effects of space on encounter. In proceedings of Space Syntax Symposium 2007, Istanbul, pp. 9701-9709. [pdf]
• O'Neill, E., Kostakos, V., Kindberg, T., Fatah gen. Schiek, A., Penn, A., Stanton Fraser, D. and Jones, T. (2006). Instrumenting the city: developing methods for observing and understanding the digital cityscape. In proceedings of UbiComp 2006, Lecture notes in Computer Science 4206, Springer, pp. 315-332. [pdf]
• Fatah gen. Schieck, A., Penn, A., Kostakos, V., O'Neill, E., Kindberg, T., Stanton Fraser, D., Jones, T. (2006). Design tools for pervasive computing environments. In proceedings of Design and Decision Support Systems in Architecture and Urban Planning (DDSS 2006), 2-7 July 2006, Springer Netherlands, pp. 467-486. [pdf]
• Kostakos, V., O'Neill, E., Shahi, A. (2006). Building Common Ground for Face to Face Interactions by Sharing Mobile Device Context. In proceedings of the workshop on Location and Context Awareness (LOCA 2006), Dublin, Ireland. Lecture Notes in Computer Science 3987, Springer, pp. 222-238. [pdf]
• O'Neill, E., Woodgate, D., and Kostakos, V. (2004). Easing the wait in the Emergency Room: building a theory of public information systems. In proceedings of the ACM Desiging Interactive Systems 2004 (DIS 2004), Boston, MA., August 2004, pp. 17-25. [pdf]
• Kostakos, V. and O'Neill, E. (2004). Pervasive Computing in Emergency Situations. In proceedings of The Annual Hawaii International Conference on System Sciences (HICSS 2004), January 5-8, 2004, Computer Society Press, 2004. [pdf]
• Kostakos, V. and O'Neill, E. (2003). A directional Stroke Recognition Technique for Mobile Interaction in a Pervasive Computing World. In People and Computers XVII, proceedings of HCI 2003: Designing for Society. Bath, UK: Springer, pp. 197-206. [pdf]

Book chapters

• Salvador, F., Kostakos, V. (2012). A scalable sensor middleware for social end-user programming. In T. Lovett and E. O'Neill (Eds.), Mobile Context Awareness (pp. 115-132). Springer, London. [pdf]
• Kostakos, V. (2010). Space Syntax and pervasive systems. In B. Jiang and X. A. Yao (Eds.), Geospatial Analysis and Modeling of Urban Structure and Dynamics (pp. 31-52). Springer, New York. [pdf]
• Fatah gen. Schieck, A., Kostakos, V., Penn, A. (2009). Exploring the Digital Encounters in the Public Arena. In K. Willis, G. Roussos, K. Chorianopoulos, M. Struppek (Eds.), Shared Encounters (pp. 179-198). Springer, Germany. [pdf]
• Kostakos, V. and O’Neill E. (2008). Cityware: Urban Computing to Bridge Online and Real-world Social Networks. In M. Foth (Ed.), Handbook of Research on Urban Informatics: The Practice and Promise of the Real-Time City (pp. 195-204). Hershey, PA: Information Science Reference, IGI Global. [pdf]
• Kostakos, V. and O'Neill, E. (2006). Interacting with mobile and pervasive systems. In I. K. Ibrahim (Ed.), Handbook of research on mobile multimedia (pp. 71-85). Hershey: Idea Group Inc, ISBN 1591408660. [pdf]

Workshops and posters

• Rogstadius, J., Kostakos, V., Laredo, J. and Vukovic, M. (2011). A real-time social media aggregation tool: Reflections from five large-scale events. In ECSCW 2011, Workshop CSCWSmart? Collective Intelligence and CSCW in Crisis Situations, Aarhus, Denmark. [pdf]
• Rogstadius, J., Kostakos, V., Laredo, J. and Vukovic, M. (2011). Improving Situational Awareness in Emergencies through Crowd Supported Analysis of Social Media. Poster presented at ECSCW 2011, Aarhus, Denmark. [pdf]
• Ojala, T., and Kostakos, V. (2011). Driving Innovation in Urban Computing With a Community Testbed. In adjunct proceedings of Pervasive 2011, workshop on Pervasive Urban Applications (PURBA). California, USA. [pdf]
• Venkatanathan, J., and Kostakos, V. (2011). Privacy in a networked world: effects of reciprocity and imitation on location sharing. In adjunct proceedings of the conference on Human factors in computing systems (CHI 2011), workshop on Networked Privacy. Vancouver, Canada. [pdf]
• Rogstadius, J., Kostakos, V., Laredo, J., and Vukovic, M. (2011). Towards Real-time Emergency Response using Crowd Supported Analysis of Social Media. In adjunct proceedings of the conference on Human factors in computing systems (CHI 2011), Workshop on Crowdsourcing and Human Computation: Systems, Studies and Platforms. Vancouver, Canada. [pdf]
• Ojala, T., Kostakos, V., and Kukka, H. (2011). It’s a Jungle Out There: Fantasy and Reality of Evaluating Public Displays “in the Wild”. In adjunct proceedings of the conference on Human factors in computing systems (CHI 2011), Workshop on Large Displays in Urban Life: from Exhibition Halls to Media Facades. Vancouver, Canada. [pdf]
• Camacho, T., Quintal, F., Scott, M., Kostakos, V., and Oakley, I. (2011). Towards Egocentric Fuel Efficiency Feedback. In adjunct proceedings of the conference on Human factors in computing systems (CHI 2011), Workshop on Persuasion, Influence, Nudge & Coercion through mobile devices. Vancouver, Canada. [pdf]
• Bianchi, A., Oakley, I., Lee, J.K., Kwon, D.S., Kostakos, V. (2011). Haptics for Tangible Interaction: A Vibro-Tactile Prototype. ACM Tangible and Embedded Interaction, pp. 283-284. [pdf]
• Smus, B. and Kostakos, V. (2010). Running Gestures: Hands-free Interaction During Physical Activity. Adjunct proceedings of Ubicomp 2010, Copehnagen, Denmark, pp. 433-434. [pdf]
• Ferreira, D., Kostakos, V., Rogstadius, J. and Venkatanathan, J. (2010). Design, Prototyping and Evaluation of Ambient Media: Lessons Learned from the Ambient Notifier. Adjunct proceedings of MobileHCI, International Workshop on Tool-Support for Mobile and Pervasive Application Development (TSMPAD 2010), September 7-10, Lisbon, Portugal. [pdf]
• Catano, N., Kostakos, V., Oakley, I. (2009). Poporo: A Formal Framework for Social Networking. 3rd International Workshop on Formal Methods for Interactive Systems (FMIS). [pdf]
• Kostakos, V. and O’Neill, E. (2008). Human-in-the-loop: rethinking security in mobile and pervasive systems.In extended abstracts of the conference on Human factors in computing systems (CHI 2008), Florence, Italy, pp. 3075-3080. [pdf]
• Kostakos, V. and O’Neill, E. (2008). Urban encounters: the game of real life.In extended abstracts of the conference on Human factors in computing systems (CHI 2008), Florence, Italy, pp. 3381-3386. [pdf]
• Kostakos, V., O’Neill, E. and Jones, S. (2008). Social Networking 2.0. In extended abstracts of the conference on Human factors in computing systems (CHI 2008), Florence, Italy, pp. 3555-3560. [pdf]
• Kostakos, V. and O’Neill, E. (2008). Capturing and visualising Bluetooth encounters. In adjunct proceedings of the conference on Human factors in computing systems (CHI 2008), workshop on Social Data Analysis, Florence, Italy. [pdf]
• Fatah gen Schiek, A. and Kostakos, V. (2007). Exploring digital encounters in the city.In adjunct proceedings of the conference on Human factors in computing systems (CHI 2007), workshop on Shared Encounters, San Hose, CA, April 29. [pdf]
• Kostakos, V. and O’Neill, E. (2007). NFC on mobile phones: issues, lessons and future research.In adjunct proceedings of the Fifth IEEE International Conference on Pervasive Computing and Communications (Percom 2007), March 19-23, Pervasive RFID/NFC Technology and Applications Workshop (Pertec 2007). White Plains, NY, pp. 367-370. [pdf]
• Coroama, V., Kostakos, V., Magerkurth, C. and de Vallejo, I.L. (2005). UbiSoc 2005: first international workshop on social implications of ubiquitous computing. In adjunct proceedings of the conference on Human factors in computing systems (CHI 2005), ACM Press, pp. 2111-2112. [pdf]
• Kostakos, V. and O'Neill, E. (2005). A space oriented approach to designing pervasive systems. In proceedings of the 3rd Uk-UbiNet Workshop, 9-11 February 2005, University of Bath, UK. [pdf]
• Kaenampornpan, M., O'Neill, E., Kostakos, V. and Warr, A. (2004). Classifying Context Classifications: an Activity Theory Perspective. In proceedings of the 2nd UK-UbiNet Workshop, 5-7th May 2004, University of Cambridge, UK. [pdf]
• Garzonis, S., O'Neill, E., Kostakos, V., Kaenampornpan, M., and Warr, A. (2004). A Novel Approach for Identification and Authentication of Users in a Pervasive Environment. In proceedings of the 2nd UK-UbiNet Workshop, 5-7th May 2004, University of Cambridge, UK. [pdf]
• Kostakos, V. and O'Neill, E. (2004). Designing Pervasive Systems for Society. In adjunct proceedings of the Second International Conference on Pervasive Computing (Pervasive 2004), April 18-23, First International Workshop on Sustainable Pervasive Computing. Vienna, Austria. [pdf]
• Kostakos, V. and O'Neill, E. (2004). Extending Traditional Design approaches for Pervasive Computing. In adjunct proceedings of PREP2004, 5-7th April, University of Hertfordshire, UK. [pdf]
• Kostakos, V. and O'Neill, E. (2003). Introducing Pervasive Computing to Society. In proceedings of the 1st UK-UbiNet Workshop, 25-26th September 2003, Imperial College, London, UK. [pdf]

Others

• Kostakos, V. (2012). Training users vs. training soldiers: experiences from the battlefield. Communications of the ACM, 55(3):33-35. [pdf]
• Kostakos, V. (2009). An empirical study of spatial and transpatial social networks using Bluetooth and Facebook. arXiv:0910.4292. [pdf]
• Kostakos, V. (2009). Is the crowd's wisdom biased? A quantitative assessment of three online communities. arXiv:0909.0237. [pdf]
• Kostakos, V. (2008). Bluetooth monitoring can bring many benefits.The Guardian, July 21st, 2008. [html]
• Kostakos, V. (2008). Towards sustainable transport: wireless detection of passenger trips on public transport buses. arXiv:0806.0874. [pdf]
• Kostakos, V. and O’Neill, E. (2008). Size matters: performance declines if your pixels are too big or too small. arXiv:0804.3103. [pdf]
• Kostakos, V. (2008). The privacy implications of Bluetooth. arXiv:0804.3752. [pdf]
• Kostakos, V. and Kostakos, P. (2008). Intelligence gathering by capturing the social processes within prisons. arXiv:0804.3064. [pdf]
• Kostakos, V. and Kostakos, P. (2007). Social Network Analysis: Real world methodological challenges. ESRC Standing Group on Organised Crime Newsletter, 6(1):7-9. [pdf]
• Kostakos, V., O’Neill, E., Penn, A. (2007). Brief encounter networks. arXiv:0709.0223. [pdf]
• Kostakos, V. (2007). Prepare for Ubicomp’s judgement day. Communications of the ACM, 50(2):13. [pdf]
• Kostakos, P. and Kostakos, V. (2006). Criminal group behaviour and operational environments. ESRC Standing Group on Organised Crime Newsletter, 5(2):6-7. [pdf]
• Kostakos, V. (2005). A design framework for pervasive computing systems. PhD Thesis, University of Bath, UK. Technical Report CSBU2005-02, ISSN 1740-9497. [pdf]
• Kostakos, V. (2001). Implementation and comparison of factorisation algorithms. BSc Thesis, University of Bath, UK. [pdf]