Easing the wait in the emergency room: building a theory of public information systems. - Eamonn O'Neill; Dawn Woodgate; Vassilis Kostakos (Conference on Designing Interactive Systems, 2004)

Pervasive Computing in Emergency Situations. - Vassilis Kostakos; Eamonn O'Neill (HICSS, 2004)

A design framework for pervasive computing systems. - Vassilis Kostakos (2004)

UbiSoc 2005: first international workshop on social implications of ubiquitous computing. - Vlad Coroama; Vassilis Kostakos; Carsten Magerkurth; Irene López de Vallejo (CHI Extended Abstracts, 2005)

The social implications of emerging technologies. - Vassilis Kostakos; Eamonn O'Neill; Linda Little; Elizabeth Sillence (Interact. Comput., 2005)

Instrumenting the City: Developing Methods for Observing and Understanding the Digital Cityscape. - Eamonn O'Neill; Vassilis Kostakos; Tim Kindberg; Ava Fatah gen. Schieck; Alan Penn 001; Danae Stanton Fraser; Tim Jones (UbiComp, 2006)

Building Common Ground for Face to Face Interactions by Sharing Mobile Device Context. - Vassilis Kostakos; Eamonn O'Neill; Anuroop Shahi (LoCA, 2006)

Designing Urban Pervasive Systems. - Vassilis Kostakos; Eamonn O'Neill; Alan Penn 001 (Computer, 2006)

Can we do without GUIs? Gesture and speech interaction with a patient information system. - Eamonn O'Neill; Manasawee Kaenampornpan; Vassilis Kostakos; Andrew Warr; Dawn Woodgate (Pers. Ubiquitous Comput., 2006)

NFC on Mobile Phones: Issues, Lessons and Future Research. - Vassilis Kostakos; Eamonn O'Neill (PerCom Workshops, 2007)

Brief encounter networks - Vassilis Kostakos; Eamonn O'Neill; Alan Penn 001 (CoRR, 2007)

Human-in-the-loop: rethinking security in mobile and pervasive systems. - Vassilis Kostakos (CHI Extended Abstracts, 2008)

Social networking 2.0. - Vassilis Kostakos (CHI Extended Abstracts, 2008)

Urban encounters: the game of real life. - Vassilis Kostakos (CHI Extended Abstracts, 2008)

Improving Emergency Response to Mass Casualty Incidents. - Marcus Lucas da Silva; Vassilis Kostakos; Mitsuji Matsumoto (PerCom, 2008)

Intelligence gathering by capturing the social processes within prisons - Vassilis Kostakos; Panos A. Kostakos 001 (CoRR, 2008)

Size matters: performance declines if your pixels are too big or too small - Vassilis Kostakos; Eamonn O'Neill (CoRR, 2008)

The privacy implications of Bluetooth - Vassilis Kostakos (CoRR, 2008)

Using Bluetooth to capture passenger trips on public transport buses - Vassilis Kostakos (CoRR, 2008)

Cityware. - Vassilis Kostakos; Eamonn O'Neill (Handbook of Research on Urban Informatics, 2009)

Designing trustworthy situated services: an implicit and explicit assessment of locative images-effect on trust. - Vassilis Kostakos; Ian Oakley (CHI, 2009)

Is the Crowd's Wisdom Biased? A Quantitative Analysis of Three Online Communities. - Vassilis Kostakos (CSE (4), 2009)

Is the crowd's wisdom biased? A quantitative asessment of three online communities - Vassilis Kostakos (CoRR, 2009)

An empirical study of spatial and transpatial social networks using Bluetooth and Facebook - Vassilis Kostakos (CoRR, 2009)

rfid in pervasive computing: State-of-the-art and outlook. - George Roussos; Vassilis Kostakos (Pervasive Mob. Comput., 2009)

Understanding and measuring the urban pervasive infrastructure. - Vassilis Kostakos; Tom Nicolai; Eiko Yoneki; Eamonn O'Neill; Holger Kenn; Jon Crowcroft (Pers. Ubiquitous Comput., 2009)

Running gestures: hands-free interaction during physical activity. - Boris Smus; Vassilis Kostakos (UbiComp (Adjunct Papers), 2010)

A wireless infrastructure for delivering contextual services and studying transport behavior. - Tiago Camacho; Vassilis Kostakos; Claudio Mantero (ITSC, 2010)

Wireless detection of end-to-end passenger trips on public transport buses. - Vassilis Kostakos; Tiago Camacho; Claudio Mantero (ITSC, 2010)

Hide and seek: location sharing practices with social media. - Daniel Wagner 003; Mariana Lopez; André Dória; Iryna Pavlyshak; Vassilis Kostakos; Ian Oakley; Tasos Spiliotopoulos (Mobile HCI, 2010)

Making Friends in Life and Online: Equivalence, Micro-Correlation and Value in Spatial and Transpatial Social Networks. - Vassilis Kostakos; Jayant Venkatanathan (SocialCom/PASSAT, 2010)

Inferring social networks from physical interactions: a feasibility study. - Vassilis Kostakos; Panos A. Kostakos 001 (Int. J. Pervasive Comput. Commun., 2010)

Brief encounters: Sensing, modeling and visualizing urban mobility and copresence networks. - Vassilis Kostakos; Eamonn O'Neill; Alan Penn 001; George Roussos; Dikaios Papadogkonas (ACM Trans. Comput. Hum. Interact., 2010)

Exploring Digital Encounters in the Public Arena. - Ava Fatah gen. Schieck; Vassilis Kostakos; Alan Penn 001 (Shared Encounters, 2010)

Who's your best friend?: targeted privacy attacks In location-sharing social networks. - Vassilis Kostakos; Jayant Venkatanathan; Bernardo Reynolds; Norman M. Sadeh; Eran Toch; Siraj A. Shaikh; Simon L. Jones (UbiComp, 2011)

An Assessment of Intrinsic and Extrinsic Motivation on Task Performance in Crowdsourcing Markets. - Jakob Rogstadius; Vassilis Kostakos; Aniket Kittur; Boris Smus; Jim Laredo; Maja Vukovic (ICWSM, 2011)

Information to Go: Exploring In-Situ Information Pick-Up "In the Wild". - Hannu Kukka; Fabio Kruger; Vassilis Kostakos; Timo Ojala; Marko Jurmu (INTERACT (2), 2011)

Intelligent Playgrounds: Measuring and Affecting Social Inclusion in Schools. - Olga Lyra; Evangelos Karapanos; Vassilis Kostakos (INTERACT (4), 2011)

Sharing Ephemeral Information in Online Social Networks: Privacy Perceptions and Behaviours. - Bernardo Reynolds; Jayant Venkatanathan; Jorge Gonçalves 001; Vassilis Kostakos (INTERACT (3), 2011)

Improving Users' Consistency When Recalling Location Sharing Preferences. - Jayant Venkatanathan; Denzil Ferreira; Michael Benisch; Jialiu Lin; Evangelos Karapanos; Vassilis Kostakos; Norman M. Sadeh; Eran Toch (INTERACT (1), 2011)

UBI challenge: research coopetition on real-world urban computing. - Timo Ojala; Vassilis Kostakos (MUM, 2011)

Understanding Human-Smartphone Concerns: A Study of Battery Life. - Denzil Ferreira; Anind K. Dey; Vassilis Kostakos (Pervasive, 2011)

The phone lock: audio and haptic shoulder-surfing resistant PIN entry methods for mobile devices. - Andrea Bianchi; Ian Oakley; Vassilis Kostakos; Dong-Soo Kwon (TEI, 2011)

Haptics for tangible interaction: a vibro-tactile prototype. - Andrea Bianchi; Ian Oakley; Jong Keun Lee; Dong-Soo Kwon; Vassilis Kostakos (TEI, 2011)

The challenges and opportunities of designing pervasive systems for deep-space colonies. - Vassilis Kostakos (Pers. Ubiquitous Comput., 2011)

A Scalable Sensor Middleware for Social End-User Programming. - Salvador Faria; Vassilis Kostakos (Mobile Context Awareness, 2012)

UbiMI: ubiquitous mobile instrumentation. - Denzil Ferreira; Emiliano Miluzzo; Jonna Häkkilä; Tom Lovett; Vassilis Kostakos (UbiComp, 2012)

Workshop on Computer Mediated Social Offline Interactions (SOFTec 2012). - Nemanja Memarovic; Marc Langheinrich; Vassilis Kostakos; Geraldine Fitzpatrick; Elaine M. Huang (UbiComp, 2012)

Web tool for traffic engineers: direct manipulation and visualization of vehicular traffic using Google maps. - Tomi Juntunen; Vassilis Kostakos; Mikko Perttunen; Denzil Ferreira (MindTrek, 2012)

Testdroid: automated remote UI testing on Android. - Jouko Kaasila; Denzil Ferreira; Vassilis Kostakos; Timo Ojala (MUM, 2012)

Two field trials on the efficiency of unsolicited Bluetooth proximity marketing. - Timo Ojala; Fabio Kruger; Vassilis Kostakos; Ville Valkama (MUM, 2012)

Keynote: From labs to cities: Mapping the social impact of ubiquitous technologies. - Vassilis Kostakos (PerCom Workshops, 2012)

Towards multi-application public interactive displays. - Tomas Lindén; Tommi Heikkinen; Vassilis Kostakos; Denzil Ferreira; Timo Ojala (PerDis, 2012)

From School Food to Skate Parks in a Few Clicks: Using Public Displays to Bootstrap Civic Engagement of the Young. - Simo Hosio; Vassilis Kostakos; Hannu Kukka; Marko Jurmu; Jukka Riekki; Timo Ojala (Pervasive, 2012)

Network, personality and social capital. - Jayant Venkatanathan; Evangelos Karapanos; Vassilis Kostakos; Jorge Gonçalves 001 (WebSci, 2012)

Training users vs. training soldiers: experiences from the battlefield. - Vassilis Kostakos (Commun. ACM, 2012)

Multipurpose Interactive Public Displays in the Wild: Three Years Later. - Timo Ojala; Vassilis Kostakos; Hannu Kukka; Tommi Heikkinen; Tomas Lindén; Marko Jurmu; Simo Hosio; Fabio Kruger; Daniele Zanni (Computer, 2012)

Correlating Pedestrian Flows and Search Engine Queries - Vassilis Kostakos; Simo Hosio; Jorge Gonçalves 001 (CoRR, 2012)

Lessons Learned from Large-Scale User Studies: Using Android Market as a Source of Data. - Denzil Ferreira; Vassilis Kostakos; Anind K. Dey (Int. J. Mob. Hum. Comput. Interact., 2012)

ICTD Work, Plus mFeel. - Jörg Dörflinger; Tom Gross; Olga Lyra; Evangelos Karapanos; Vassilis Kostakos; Ismael Cuadrado-Cordero; Luis Miguel Soria-Morillo; Luis González Abril; Juan Antonio Ortega-Ramírez; Iván Pau de la Cruz; Miguel Ángel Valero Duboy; Eiman Kanjo (IEEE Pervasive Comput., 2012)

IncluCity: using contextual cues to raise awareness on environmental accessibility. - Jorge Gonçalves 001; Vassilis Kostakos; Simo Hosio; Evangelos Karapanos; Olga Lyra (ASSETS, 2013)

Narrowcasting in social media: effects and perceptions. - Jorge Gonçalves 001; Vassilis Kostakos; Jayant Venkatanathan (ASONAM, 2013)

A network science approach to modelling and predicting empathy. - Jayant Venkatanathan; Evangelos Karapanos; Vassilis Kostakos; Jorge Gonçalves 001 (ASONAM, 2013)

What makes you click: exploring visual signals to entice interaction on public displays. - Hannu Kukka; Heidi Oja; Vassilis Kostakos; Jorge Gonçalves 001; Timo Ojala (CHI, 2013)

Time shifting patterns in browsing and search behavior for catch-up TV on the web. - Mika Rautiainen; Arto Heikkinen; Jouni Sarvanko; Konstantinos Chorianopoulos; Vassilis Kostakos; Mika Ylianttila (EuroITV, 2013)

Revisiting human-battery interaction with an interactive battery interface. - Denzil Ferreira; Eija Ferreira; Jorge Gonçalves 001; Vassilis Kostakos; Anind K. Dey (UbiComp, 2013)

Ubiquitous mobile instrumentation. - Denzil Ferreira; Christian Koehler 002; Evangelos Karapanos; Vassilis Kostakos (UbiComp (Adjunct Publication), 2013)

Crowdsourcing on the spot: altruistic use of public displays, feasibility, performance, and behaviours. - Jorge Gonçalves 001; Denzil Ferreira; Simo Hosio; Yong Liu 010; Jakob Rogstadius; Hannu Kukka; Vassilis Kostakos (UbiComp, 2013)

Human interfaces for civic and urban engagement: HiCUE '13. - Simo Hosio; Jorge Gonçalves 001; Vassilis Kostakos; Keith Cheverst; Yvonne Rogers (UbiComp (Adjunct Publication), 2013)

SOFTec 2013: second workshop on computer mediated social offline interactions. - Nemanja Memarovic; Vassilis Kostakos; Geraldine Fitzpatrick; Albrecht Schmidt 001 (UbiComp (Adjunct Publication), 2013)

Kuukkeli-TV: Online content-based services and applications for broadcast TV with long-term user experiments. - Mika Rautiainen; Arto Heikkinen; Jouni Sarvanko; Vassilis Kostakos; Mika Ylianttila (ICME Workshops, 2013)

An introduction for system developers to volunteer roles in crisis response and recovery. - Jakob Rogstadius; Claudio Teixeira; Evangelos Karapanos; Vassilis Kostakos (ISCRAM, 2013)

An online system with end-user services: mining novelty concepts from tv broadcast subtitles. - Mika Rautiainen; Jouni Sarvanko; Arto Heikkinen; Mika Ylianttila; Vassilis Kostakos (KDD, 2013)

Application discoverability on multipurpose public displays: popularity comes at a price. - Simo Hosio; Jorge Gonçalves 001; Vassilis Kostakos (PerDis, 2013)

Multipurpose Public Displays: How Shortcut Menus Affect Usage. - Vassilis Kostakos; Hannu Kukka; Jorge Gonçalves 001; Nikolaos K. Tselios; Timo Ojala (IEEE Computer Graphics and Applications, 2013)

CrisisTracker: Crowdsourced social media curation for disaster awareness. - Jakob Rogstadius; Maja Vukovic; C. A. Teixeira; Vassilis Kostakos; Evangelos Karapanos; Jim Laredo (IBM J. Res. Dev., 2013)

Introduction to the special issue on social networks and ubiquitous interactions. - Vassilis Kostakos; Mirco Musolesi (Int. J. Hum. Comput. Stud., 2013)

Traffic in the Smart City: Exploring City-Wide Sensing for Traffic Control Center Augmentation. - Vassilis Kostakos; Timo Ojala; Tomi Juntunen (IEEE Internet Comput., 2013)

Public Displays Invade Urban Spaces. - Vassilis Kostakos; Timo Ojala (IEEE Pervasive Comput., 2013)

Towards proximity-based passenger sensing on public transport buses. - Vassilis Kostakos; Tiago Camacho; Claudio Mantero (Pers. Ubiquitous Comput., 2013)

This is not classified: everyday information seeking and encountering in smart urban spaces. - Hannu Kukka; Vassilis Kostakos; Timo Ojala; Johanna Ylipulli; Tiina Suopajärvi; Marko Jurmu; Simo Hosio (Pers. Ubiquitous Comput., 2013)

Game of words: tagging places through crowdsourcing on public displays. - Jorge Gonçalves 001; Simo Hosio; Denzil Ferreira; Vassilis Kostakos (Conference on Designing Interactive Systems, 2014)

CHI 1994-2013: mapping two decades of intellectual progress through co-word analysis. - Yong Liu 010; Jorge Gonçalves 001; Denzil Ferreira; Bei Xiao; Simo Hosio; Vassilis Kostakos (CHI, 2014)

Projective testing of diurnal collective emotion. - Jorge Gonçalves 001; Pratyush Pandab; Denzil Ferreira; Mohammad Ghahramani; Guoying Zhao 001; Vassilis Kostakos (UbiComp, 2014)

Pulse: low bitrate wireless magnetic communication for smartphones. - Weiwei Jiang 001; Denzil Ferreira; Jani Ylioja; Jorge Gonçalves 001; Vassilis Kostakos (UbiComp, 2014)

Identity crisis of ubicomp?: mapping 15 years of the field's development and paradigm change. - Yong Liu 010; Jorge Gonçalves 001; Denzil Ferreira; Simo Hosio; Vassilis Kostakos (UbiComp, 2014)

Contextual experience sampling of mobile application micro-usage. - Denzil Ferreira; Jorge Gonçalves 001; Vassilis Kostakos; Louise Barkhuus; Anind K. Dey (Mobile HCI, 2014)

Mobile cloud storage: a contextual experience. - Karel Vandenbroucke; Denzil Ferreira; Jorge Gonçalves 001; Vassilis Kostakos; Katrien De Moor (Mobile HCI, 2014)

Tandem Browsing Toolkit: Distributed Multi-Display Interfaces with Web Technologies. - Tommi Heikkinen; Jorge Gonçalves 001; Vassilis Kostakos; Ivan Elhart; Timo Ojala (PerDis, 2014)

Situated crowdsourcing using a market model. - Simo Hosio; Jorge Gonçalves 001; Vili Lehdonvirta; Denzil Ferreira; Vassilis Kostakos (UIST, 2014)

Eliciting situated feedback: A comparison of paper, web forms and public displays. - Jorge Gonçalves 001; Simo Hosio; Yong Liu 010; Vassilis Kostakos (Displays, 2014)

An empirical investigation of mobile government adoption in rural China: A case study in Zhejiang province. - Yong Liu 010; Hongxiu Li; Vassilis Kostakos; Jorge Gonçalves 001; Simo Hosio; Feng Hu (Gov. Inf. Q., 2014)

Multipurpose Public Displays: Can Automated Grouping of Applications and Services Enhance User Experience? - Christos Katsanos; Nikolaos K. Tselios; Jorge Gonçalves 001; Tomi Juntunen; Vassilis Kostakos (Int. J. Hum. Comput. Interact., 2014)

Citizen Motivation on the Go: The Role of Psychological Empowerment. - Jorge Gonçalves 001; Vassilis Kostakos; Evangelos Karapanos; Mary Barreto; Tiago Camacho; Anthony Tomasic; John Zimmerman (Interact. Comput., 2014)

Online Disclosure of Personally Identifiable Information with Strangers: Effects of Public and Private Sharing. - Jayant Venkatanathan; Vassilis Kostakos; Evangelos Karapanos; Jorge Gonçalves 001 (Interact. Comput., 2014)

Modeling What Friendship Patterns on Facebook Reveal About Personality and Social Capital. - Yong Liu 010; Jayant Venkatanathan; Jorge Gonçalves 001; Evangelos Karapanos; Vassilis Kostakos (ACM Trans. Comput. Hum. Interact., 2014)

Spatio-temporal patterns link your digital identities. - Mikko Perttunen; Vassilis Kostakos; Jukka Riekki; Timo Ojala (Comput. Environ. Urban Syst., 2014)

Life through the lens: a qualitative investigation of human behaviour with an urban photography service. - Simo Hosio; Richard H. R. Harper; Kenton O'Hara; Jorge Gonçalves 001; Vassilis Kostakos (BCS HCI, 2015)

The curse of quantified-self: an endless quest for answers. - Niels van Berkel; Chu Luo; Denzil Ferreira; Jorge Gonçalves 001; Vassilis Kostakos (UbiComp/ISWC Adjunct, 2015)

Bazaar: a situated crowdsourcing market. - Jorge Gonçalves 001; Simo Hosio; Denzil Ferreira; Theodoros Anagnostopoulos; Vassilis Kostakos (UbiComp/ISWC Adjunct, 2015)

Workshop on mobile and situated crowdsourcing. - Jorge Gonçalves 001; Simo Hosio; Vassilis Kostakos; Maja Vukovic; Shin'ichi Konomi (UbiComp/ISWC Adjunct, 2015)

Revisitation analysis of smartphone app use. - Simon L. Jones; Denzil Ferreira; Simo Hosio; Jorge Gonçalves 001; Vassilis Kostakos (UbiComp, 2015)

Securacy: an empirical investigation of Android applications' network usage, privacy and security. - Denzil Ferreira; Vassilis Kostakos; Alastair R. Beresford; Janne Lindqvist; Anind K. Dey (WISEC, 2015)

Motivating participation and improving quality of contribution in ubiquitous crowdsourcing. - Jorge Gonçalves 001; Simo Hosio; Jakob Rogstadius; Evangelos Karapanos; Vassilis Kostakos (Comput. Networks, 2015)

AWARE: mobile context instrumentation framework. - Denzil Ferreira; Vassilis Kostakos; Anind K. Dey (Frontiers ICT, 2015)

The Rise of Ubiquitous Instrumentation. - Vassilis Kostakos; Denzil Ferreira (Frontiers ICT, 2015)

The big hole in HCI research. - Vassilis Kostakos (Interactions, 2015)

Urban traffic analysis through multi-modal sensing. - Mikko Perttunen; Vassilis Kostakos; Jukka Riekki; Timo Ojala (Pers. Ubiquitous Comput., 2015)

Leveraging Wisdom of the Crowd for Decision Support. - Simo Hosio; Jorge Gonçalves 001; Theodoros Anagnostopoulos; Vassilis Kostakos (BCS HCI, 2016)

A Systematic Assessment of Smartphone Usage Gaps. - Niels van Berkel; Chu Luo; Theodoros Anagnostopoulos; Denzil Ferreira; Jorge Gonçalves 001; Simo Hosio; Vassilis Kostakos (CHI, 2016)

Monetary Assessment of Battery Life on Smartphones. - Simo Hosio; Denzil Ferreira; Jorge Gonçalves 001; Niels van Berkel; Chu Luo; Muzamil Ahmed; Huber Flores; Vassilis Kostakos (CHI, 2016)

Mobile Phone Usage Cycles: A Torus Topology for Spherical Visualisation. - Julie R. Williamson; John Williamson 001; Vassilis Kostakos; Keith Hamilton; Jeremy Green (CHI Extended Abstracts, 2016)

Crowdsourcing Queue Estimations in Situ. - Jorge Gonçalves 001; Hannu Kukka; Iván Sánchez Milara; Vassilis Kostakos (CSCW, 2016)

Measuring group dynamics in an elementary school setting using mobile devices. - Niels van Berkel; Sergei Kopytin; Simo Hosio; Jonna Malmberg; Hanna Järvenoja; Vassilis Kostakos (UbiComp Adjunct, 2016)

Social-aware device-to-device communication: a contribution for edge and fog computing? - Huber Flores; Denzil Ferreira; Chu Luo; Vassilis Kostakos; Pan Hui 001; Rajesh Sharma; Sasu Tarkoma; Yong Li 008 (UbiComp Adjunct, 2016)

Instrumenting smartphones with portable NIRS. - Simon Klakegg; Chu Luo; Jorge Gonçalves 001; Simo Hosio; Vassilis Kostakos (UbiComp Adjunct, 2016)

Modelling smartphone usage: a markov state transition model. - Vassilis Kostakos; Denzil Ferreira; Jorge Gonçalves 001; Simo Hosio (UbiComp, 2016)

A data hiding approach for sensitive smartphone data. - Chu Luo; Angelos Fylakis; Juha Partala; Simon Klakegg; Jorge Gonçalves 001; Kaitai Liang; Tapio Seppänen; Vassilis Kostakos (UbiComp, 2016)

How to validate mobile crowdsourcing design? leveraging data integration in prototype testing. - Chu Luo; Miikka Kuutila; Simon Klakegg; Denzil Ferreira; Huber Flores; Jorge Gonçalves 001; Vassilis Kostakos; Mika Mäntylä (UbiComp Adjunct, 2016)

Situational impairments to mobile interaction in cold environments. - Zhanna Sarsenbayeva; Jorge Gonçalves 001; Juan Francisco García Navarro; Simon Klakegg; Sirkka Rissanen; Hannu Rintamäki; Jari Hannu; Vassilis Kostakos (UbiComp, 2016)

Indoor light scavenging on smartphones. - Denzil Ferreira; Christian Schuss; Chu Luo; Jorge Gonçalves 001; Vassilis Kostakos; Timo Rahkonen (MUM, 2016)

Fragmentation or cohesion? Visualizing the process and consequences of information system diversity, 1993-2012. - Yong Liu 010; Hongxiu Li; Jorge Gonçalves 001; Vassilis Kostakos; Bei Xiao (Eur. J. Inf. Syst., 2016)

Modeling consumer switching behavior in social network games by exploring consumer cognitive dissonance and change experience. - Yong Liu 010; Hongxiu Li; Xiaoyu Xu; Vassilis Kostakos; Jukka Heikkilä (Ind. Manag. Data Syst., 2016)

Worker Performance in a Situated Crowdsourcing Market. - Jorge Gonçalves 001; Simo Hosio; Yong Liu 010; Vassilis Kostakos (Interact. Comput., 2016)

Cyclist-aware traffic lights through distributed smartphone sensing. - Theodoros Anagnostopoulos; Denzil Ferreira; Alexander Samodelkin; Muzamil Ahmed; Vassilis Kostakos (Pervasive Mob. Comput., 2016)

Toward Meaningful Engagement with Pervasive Displays. - Simo Hosio; Hannu Kukka; Jorge Gonçalves 001; Vassilis Kostakos; Timo Ojala (IEEE Pervasive Comput., 2016)

Practical simulation of virtual crowds using points of interest. - Matti Pouke; Jorge Gonçalves 001; Denzil Ferreira; Vassilis Kostakos (Comput. Environ. Urban Syst., 2016)

Human Sensors on the Move. - Denzil Ferreira; Vassilis Kostakos; Immanuel Schweizer (Participatory Sensing, Opinions and Collective Awareness, 2017)

Erratum to: Observing Human Activity Through Sensing. - Sidharta Gautama; Martin Atzmueller; Vassilis Kostakos; Dominique Gillis; Simo Hosio (Participatory Sensing, Opinions and Collective Awareness, 2017)

Observing Human Activity Through Sensing. - Sidharta Gautama; Martin Atzmueller; Vassilis Kostakos; Dominique Gillis; Simo Hosio (Participatory Sensing, Opinions and Collective Awareness, 2017)

Human Sensors. - Vassilis Kostakos; Jakob Rogstadius; Denzil Ferreira; Simo Hosio; Jorge Gonçalves 001 (Participatory Sensing, Opinions and Collective Awareness, 2017)

Towards Commoditised Near Infrared Spectroscopy. - Simon Klakegg; Jorge Gonçalves 001; Niels van Berkel; Chu Luo; Simo Hosio; Vassilis Kostakos (Conference on Designing Interactive Systems, 2017)

Challenges of Quantified-Self: Encouraging Self-Reported Data Logging During Recurrent Smartphone Usage. - Aku Visuri; Niels van Berkel; Chu Luo; Jorge Gonçalves 001; Denzil Ferreira; Vassilis Kostakos (BCS HCI, 2017)

Quantifying Sources and Types of Smartwatch Usage Sessions. - Aku Visuri; Zhanna Sarsenbayeva; Niels van Berkel; Jorge Gonçalves 001; Reza Rawassizadeh; Vassilis Kostakos; Denzil Ferreira (CHI, 2017)

Rapid clock synchronisation for ubiquitous sensing services involving multiple smartphones. - Chu Luo; Henri Koski; Mikko Korhonen; Jorge Gonçalves 001; Theodoros Anagnostopoulos; Shin'ichi Konomi; Simon Klakegg; Vassilis Kostakos (UbiComp/ISWC Adjunct, 2017)

Vision-based happiness inference: a feasibility case-study. - Zhanna Sarsenbayeva; Denzil Ferreira; Niels van Berkel; Chu Luo; Mikko Vaisanen; Vassilis Kostakos; Jorge Gonçalves 001 (UbiComp/ISWC Adjunct, 2017)

UbiMI'17: ubiquitous mobile instrumentation. - Aku Visuri; Denzil Ferreira; Susanna Pirttikangas; Vassilis Kostakos; Kåre Synnes; Janne Lindqvist; Yuuki Nishiyama (UbiComp/ISWC Adjunct, 2017)

Smartphone detection of collapsed buildings during earthquakes. - Aku Visuri; Zeyun Zhu; Denzil Ferreira; Shin'ichi Konomi; Vassilis Kostakos (UbiComp/ISWC Adjunct, 2017)

Modeling Mobile Code Acceleration in the Cloud. - Huber Flores; Xiang Su; Vassilis Kostakos; Jukka Riekki; Eemil Lagerspetz; Sasu Tarkoma; Pan Hui 001; Yong Li 008; Jukka Manner (ICDCS, 2017)

Predicting interruptibility for manual data collection: a cluster-based user model. - Aku Visuri; Niels van Berkel; Chu Luo; Jorge Gonçalves 001; Denzil Ferreira; Vassilis Kostakos (MobileHCI, 2017)

Challenges of situational impairments during interaction with mobile devices. - Zhanna Sarsenbayeva; Niels van Berkel; Chu Luo; Vassilis Kostakos; Jorge Gonçalves 001 (OZCHI, 2017)

Large-scale offloading in the Internet of Things. - Huber Flores; Xiang Su; Vassilis Kostakos; Aaron Yi Ding; Petteri Nurmi; Sasu Tarkoma; Pan Hui 001; Yong Li 008 (PerCom Workshops, 2017)

Augmenting creative design thinking using networks of concepts. - Georgi V. Georgiev; Kaori Yamada; Toshiharu Taura; Vassilis Kostakos; Matti Pouke; Sylvia Tzvetanova Yung; Timo Ojala (VR, 2017)

Task Routing and Assignment in Crowdsourcing based on Cognitive Abilities. - Jorge Gonçalves 001; Michael Feldman 001; Subingqian Hu; Vassilis Kostakos; Abraham Bernstein (WWW (Companion Volume), 2017)

Are Smartphones Ubiquitous?: An in-depth survey of smartphone adoption by seniors. - Anabela Berenguer; Jorge Gonçalves 001; Simo Hosio; Denzil Ferreira; Theodoros Anagnostopoulos; Vassilis Kostakos (IEEE Consumer Electron. Mag., 2017)

Community Reminder: Participatory contextual reminder environments for local communities. - Tomoyo Sasao; Shin'ichi Konomi; Vassilis Kostakos; Keisuke Kuribayashi; Jorge Gonçalves 001 (Int. J. Hum. Comput. Stud., 2017)

Editorial. - Gregory D. Abowd; Vassilis Kostakos; Silvia Santini; James Scott; Koji Yatani (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2017)

Gamification of Mobile Experience Sampling Improves Data Quality and Quantity. - Niels van Berkel; Jorge Gonçalves 001; Simo Hosio; Vassilis Kostakos (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2017)

CrowdPickUp: Crowdsourcing Task Pickup in the Wild. - Jorge Gonçalves 001; Simo Hosio; Niels van Berkel; Furqan Ahmed; Vassilis Kostakos (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2017)

TestAWARE: A Laboratory-Oriented Testing Tool for Mobile Context-Aware Applications. - Chu Luo; Miikka Kuutila; Simon Klakegg; Denzil Ferreira; Huber Flores; Jorge Gonçalves 001; Mika Mäntylä; Vassilis Kostakos (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2017)

Sensing Cold-Induced Situational Impairments in Mobile Interaction Using Battery Temperature. - Zhanna Sarsenbayeva; Niels van Berkel; Aku Visuri; Sirkka Rissanen; Hannu Rintamäki; Vassilis Kostakos; Jorge Gonçalves 001 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2017)

Smartphone App Usage Prediction Using Points of Interest. - Donghan Yu; Yong Li 008; Fengli Xu; Pengyu Zhang; Vassilis Kostakos (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2017)

Avoiding pitfalls when using machine learning in HCI studies. - Vassilis Kostakos; Mirco Musolesi (Interactions, 2017)

Applying configurational analysis to IS behavioural research: a methodological alternative for modelling combinatorial complexities. - Yong Liu 010; József Mezei; Vassilis Kostakos; Hongxiu Li (Inf. Syst. J., 2017)

Tapping Task Performance on Smartphones in Cold Temperature. - Jorge Gonçalves 001; Zhanna Sarsenbayeva; Niels van Berkel; Chu Luo; Simo Hosio; Sirkka Risanen; Hannu Rintamäki; Vassilis Kostakos (Interact. Comput., 2017)

Donating Context Data to Science: The Effects of Social Signals and Perceptions on Action-Taking. - Yong Liu 010; Denzil Ferreira; Jorge Gonçalves 001; Simo Hosio; Pratyush Pandab; Vassilis Kostakos (Interact. Comput., 2017)

Where's everybody? Comparing the use of heatmaps to uncover cities' tacit social context in smartphones and pervasive displays. - Andreas Komninos; Jeries Besharat; Denzil Ferreira; John D. Garofalakis; Vassilis Kostakos (J. Inf. Technol. Tour., 2017)

Social-aware hybrid mobile offloading. - Huber Flores; Rajesh Sharma; Denzil Ferreira; Vassilis Kostakos; Jukka Manner; Sasu Tarkoma; Pan Hui 001; Yong Li 008 (Pervasive Mob. Comput., 2017)

Environmental exposure assessment using indoor/outdoor detection on smartphones. - Theodoros Anagnostopoulos; Juan Camilo Garcia; Jorge Gonçalves 001; Denzil Ferreira; Simo Hosio; Vassilis Kostakos (Pers. Ubiquitous Comput., 2017)

Eliciting Structured Knowledge from Situated Crowd Markets. - Jorge Gonçalves 001; Simo Hosio; Vassilis Kostakos (ACM Trans. Internet Techn., 2017)

Crowdsourcing Treatments for Low Back Pain. - Simo Johannes Hosio; Jaro Karppinen; Esa-Pekka Takala; Jani Takatalo; Jorge Gonçalves 001; Niels van Berkel; Shin'ichi Konomi; Vassilis Kostakos (CHI, 2018)

MHC '18: International Workshop on Mobile Human Contributions: Opportunities and Challenges. - Niels van Berkel; Simo Hosio; Jorge Gonçalves 001; Katarzyna Wac; Vassilis Kostakos; Anna L. Cox (UbiComp/ISWC Adjunct, 2018)

Biased Bots: Conversational Agents to Overcome Polarization. - Tilman Dingler; Ashris Choudhury; Vassilis Kostakos (UbiComp/ISWC Adjunct, 2018)

A Mobile Scanner for Probing Liquid Samples in Everyday Settings. - Weiwei Jiang 001; Gabriele Marini; Niels van Berkel; Zhanna Sarsenbayeva; Chu Luo; Xin He; Tilman Dingler; Yoshihiro Kawahara; Vassilis Kostakos (UbiComp/ISWC Adjunct, 2018)

Ubiquitous Mobile Sensing: Behaviour, Mood, and Environment. - Aku Visuri; Kennedy Opoku Asare; Elina Kuosmanen; Yuuki Nishiyama; Denzil Ferreira; Zhanna Sarsenbayeva; Jorge Gonçalves 001; Niels van Berkel; Greg Wadley; Vassilis Kostakos; Sarah Clinch; Oludamilare Matthews; et al. (UbiComp/ISWC Adjunct, 2018)

Correlating Refugee Border Crossings with Internet Search Data. - Panos Kostakos 001; Abhinay Pandya; Mourad Oussalah 002; Simo Hosio; Christoph F. Breidbach; Vassilis Kostakos; Niels van Berkel; Olga Kyriakouli; Arash Sattari (IRI, 2018)

Sensorclone: a framework for harnessing smart devices with virtual sensors. - Huber Flores; Pan Hui 001; Sasu Tarkoma; Yong Li 008; Theodoros Anagnostopoulos; Vassilis Kostakos; Chu Luo; Xiang Su (MMSys, 2018)

The Experience Sampling Method on Mobile Devices. - Niels van Berkel; Denzil Ferreira; Vassilis Kostakos (ACM Comput. Surv., 2018)

Facilitating Collocated Crowdsourcing on Situated Displays. - Simo Hosio; Jorge Gonçalves 001; Niels van Berkel; Simon Klakegg; Shin'ichi Konomi; Vassilis Kostakos (Hum. Comput. Interact., 2018)

Revisitation in Urban Space vs. Online: A Comparison across POIs, Websites, and Smartphone Apps. - Hancheng Cao; Zhilong Chen; Fengli Xu; Yong Li 008; Vassilis Kostakos (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2018)

Uniqueness in the City: Urban Morphology and Location Privacy. - Hancheng Cao; Jie Feng 002; Yong Li 008; Vassilis Kostakos (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2018)

Assisted Medication Management in Elderly Care Using Miniaturised Near-Infrared Spectroscopy. - Simon Klakegg; Jorge Gonçalves 001; Chu Luo; Aku Visuri; Alexey Popov; Niels van Berkel; Zhanna Sarsenbayeva; Vassilis Kostakos; Simo Hosio; Scott Savage; Alexander Bykov; Igor V. Meglinski; et al. (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2018)

Effect of Distinct Ambient Noise Types on Mobile Interaction. - Zhanna Sarsenbayeva; Niels van Berkel; Eduardo Velloso; Vassilis Kostakos; Jorge Gonçalves 001 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2018)

FinDroidHR: Smartwatch Gesture Input with Optical Heartrate Monitor. - Yu Zhang 093; Tao Gu 001; Chu Luo; Vassilis Kostakos; Aruna Seneviratne (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2018)

Kinship verification from facial images and videos: human versus machine. - Miguel Bordallo López; Abdenour Hadid; Elhocine Boutellaa; Jorge Gonçalves 001; Vassilis Kostakos; Simo Hosio (Mach. Vis. Appl., 2018)

Evidence-Aware Mobile Computational Offloading. - Huber Flores; Pan Hui 001; Petteri Nurmi; Eemil Lagerspetz; Sasu Tarkoma; Jukka Manner; Vassilis Kostakos; Yong Li 008; Xiang Su (IEEE Trans. Mob. Comput., 2018)

Evidence-Aware Mobile Cloud Architectures. - Huber Flores; Vassilis Kostakos; Sasu Tarkoma; Pan Hui 001; Yong Li 008 (Mobile Big Data, 2018)

Context-Informed Scheduling and Analysis: Improving Accuracy of Mobile Self-Reports. - Niels van Berkel; Jorge Gonçalves 001; Peter Koval; Simo Hosio; Tilman Dingler; Denzil Ferreira; Vassilis Kostakos (CHI, 2019)

Towards context-free semantic localisation. - Gabriele Marini; Jorge Gonçalves 001; Eduardo Velloso; Raja Jurdak; Vassilis Kostakos (UbiComp/ISWC Adjunct, 2019)

Improving wearable sensor data quality using context markers. - Chaofan Wang; Zhanna Sarsenbayeva; Chu Luo; Jorge Gonçalves 001; Vassilis Kostakos (UbiComp/ISWC Adjunct, 2019)

Effect of Cognitive Abilities on Crowdsourcing Task Performance. - Danula Hettiachchi; Niels van Berkel; Simo Hosio; Vassilis Kostakos; Jorge Gonçalves 001 (INTERACT (1), 2019)

Effect of Ambient Light on Mobile Interaction. - Zhanna Sarsenbayeva; Niels van Berkel; Weiwei Jiang 001; Danula Hettiachchi; Vassilis Kostakos; Jorge Gonçalves 001 (INTERACT (3), 2019)

Improving Experience Sampling with Multi-view User-driven Annotation Prediction. - Jonathan Liono; Flora D. Salim; Niels van Berkel; Vassilis Kostakos; A. Kai Qin (PerCom, 2019)

Semantics-Aware Hidden Markov Model for Human Mobility. - Hongzhi Shi; Hancheng Cao; Xiangxin Zhou; Yong Li 008; Chao Zhang 014; Vassilis Kostakos; Funing Sun; Fanchao Meng (SDM, 2019)

Microservices-based IoT Application Placement within Heterogeneous and Resource Constrained Fog Computing Environments. - Samodha Pallewatta; Vassilis Kostakos; Rajkumar Buyya (UCC, 2019)

Situationally-Induced Impairments and Disabilities Research. - Zhanna Sarsenbayeva; Vassilis Kostakos; Jorge Gonçalves 001 (CoRR, 2019)

Multimodal data as a means to understand the learning experience. - Michail N. Giannakos; Kshitij Sharma; Ilias O. Pappas; Vassilis Kostakos; Eduardo Velloso (Int. J. Inf. Manag., 2019)

Effect of experience sampling schedules on response rate and recall accuracy of objective self-reports. - Niels van Berkel; Jorge Gonçalves 001; Lauri Lovén; Denzil Ferreira; Simo Hosio; Vassilis Kostakos (Int. J. Hum. Comput. Stud., 2019)

Understanding smartphone notifications' user interactions and content importance. - Aku Visuri; Niels van Berkel; Tadashi Okoshi; Jorge Gonçalves 001; Vassilis Kostakos (Int. J. Hum. Comput. Stud., 2019)

Probing Sucrose Contents in Everyday Drinks Using Miniaturized Near-Infrared Spectroscopy Scanners. - Weiwei Jiang 001; Gabriele Marini; Niels van Berkel; Zhanna Sarsenbayeva; Zheyu Tan; Chu Luo; Xin He; Tilman Dingler; Jorge Gonçalves 001; Yoshihiro Kawahara; Vassilis Kostakos (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2019)

Measuring the Effects of Stress on Mobile Interaction. - Zhanna Sarsenbayeva; Niels van Berkel; Danula Hettiachchi; Weiwei Jiang 001; Tilman Dingler; Eduardo Velloso; Vassilis Kostakos; Jorge Gonçalves 001 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2019)

Crowdsourcing Perceptions of Fair Predictors for Machine Learning: A Recidivism Case Study. - Niels van Berkel; Jorge Gonçalves 001; Danula Hettiachchi; Senuri Wijenayake; Ryan M. Kelly 001; Vassilis Kostakos (Proc. ACM Hum. Comput. Interact., 2019)

Measuring the Effects of Gender on Online Social Conformity. - Senuri Wijenayake; Niels van Berkel; Vassilis Kostakos; Jorge Gonçalves 001 (Proc. ACM Hum. Comput. Interact., 2019)

CamTest: A laboratory testbed for camera-based mobile sensing applications. - Chu Luo; Zewen Xu; Ruining Dong; Jorge Gonçalves 001; Eduardo Velloso; Vassilis Kostakos (Pervasive Mob. Comput., 2019)

Energy-efficient prediction of smartphone unlocking. - Chu Luo; Aku Visuri; Simon Klakegg; Niels van Berkel; Zhanna Sarsenbayeva; Antti Möttönen; Jorge Gonçalves 001; Theodoros Anagnostopoulos; Denzil Ferreira; Huber Flores; Eduardo Velloso; Vassilis Kostakos (Pers. Ubiquitous Comput., 2019)

"Hi! I am the Crowd Tasker" Crowdsourcing through Digital Voice Assistants. - Danula Hettiachchi; Zhanna Sarsenbayeva; Fraser Allison; Niels van Berkel; Tilman Dingler; Gabriele Marini; Vassilis Kostakos; Jorge Gonçalves 001 (CHI, 2020)

Does Smartphone Use Drive our Emotions or vice versa? A Causal Analysis. - Zhanna Sarsenbayeva; Gabriele Marini; Niels van Berkel; Chu Luo; Weiwei Jiang 001; Kangning Yang; Greg Wadley; Tilman Dingler; Vassilis Kostakos; Jorge Gonçalves 001 (CHI, 2020)

How Context Influences Cross-Device Task Acceptance in Crowd Work. - Danula Hettiachchi; Senuri Wijenayake; Simo Hosio; Vassilis Kostakos; Jorge Gonçalves 001 (HCOMP, 2020)

Page-Turning Techniques for Reading Interfaces in Virtual Environments. - Tilman Dingler; Siran Li; Niels van Berkel; Vassilis Kostakos (OZCHI, 2020)

Using Video Games to Regulate Emotions. - Zhanna Sarsenbayeva; Benjamin Tag; Shu Yan; Vassilis Kostakos; Jorge Gonçalves 001 (OZCHI, 2020)

Augmenting Automated Kinship Verification with Targeted Human Input. - Danula Hettiachchi; Niels van Berkel; Simo Hosio; Miguel Bordallo López; Vassilis Kostakos; Jorge Gonçalves 001 (PACIS, 2020)

Impact of contextual and personal determinants on online social conformity. - Senuri Wijenayake; Niels van Berkel; Vassilis Kostakos; Jorge Gonçalves 001 (Comput. Hum. Behav., 2020)

Overcoming compliance bias in self-report studies: A cross-study analysis. - Niels van Berkel; Jorge Gonçalves 001; Simo Hosio; Zhanna Sarsenbayeva; Eduardo Velloso; Vassilis Kostakos (Int. J. Hum. Comput. Stud., 2020)

Fitbit for learning: Towards capturing the learning experience using wearable sensing. - Michail N. Giannakos; Kshitij Sharma; Sofia Papavlasopoulou; Ilias O. Pappas; Vassilis Kostakos (Int. J. Hum. Comput. Stud., 2020)

Will You Come Back / Check-in Again?: Understanding Characteristics Leading to Urban Revisitation and Re-check-in. - Zhilong Chen; Hancheng Cao; Huangdong Wang; Fengli Xu; Vassilis Kostakos; Yong Li 008 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2020)

Assessing Cognitive Performance Using Physiological and Facial Features: Generalizing across Contexts. - Kshitij Sharma; Evangelos Niforatos; Michail N. Giannakos; Vassilis Kostakos (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2020)

A multi-agent system for distributed smartphone sensing cycling in smart cities. - Theodoros Anagnostopoulos; Chu Luo; S. R. Jino Ramson; Klimis S. Ntalianis; Vassilis Kostakos; Christos Skourlas (J. Syst. Inf. Technol., 2020)

CrowdCog: A Cognitive Skill based System for Heterogeneous Task Assignment and Recommendation in Crowdsourcing. - Danula Hettiachchi; Niels van Berkel; Vassilis Kostakos; Jorge Gonçalves 001 (Proc. ACM Hum. Comput. Interact., 2020)

Quantifying the Effect of Social Presence on Online Social Conformity. - Senuri Wijenayake; Niels van Berkel; Vassilis Kostakos; Jorge Gonçalves 001 (Proc. ACM Hum. Comput. Interact., 2020)

Personalized Pervasive Health. - Oliver Amft; Jesús Favela; Stephen S. Intille; Mirco Musolesi; Vassilis Kostakos (IEEE Pervasive Comput., 2020)

Growing Up With Pervasive Computing. - Vassilis Kostakos; Bran Knowles; Panos Markopoulos 001; Koji Yatani (IEEE Pervasive Comput., 2020)

Inferring Circadian Rhythms of Cognitive Performance in Everyday Life. - Benjamin Tag; Tilman Dingler; Andrew W. Vargo; Vassilis Kostakos (IEEE Pervasive Comput., 2020)

User Trust in Assisted Decision-Making Using Miniaturized Near-Infrared Spectroscopy. - Weiwei Jiang 001; Zhanna Sarsenbayeva; Niels van Berkel; Chaofan Wang; Difeng Yu; Jing Wei 002; Jorge Gonçalves 001; Vassilis Kostakos (CHI, 2021)

Emergent Interaction: Complexity, Dynamics, and Enaction in HCI. - Dan Bennett; Alan J. Dix; Parisa Eslambolchilar; Feng Feng 004; Tom Froese; Vassilis Kostakos; Sébastien Lerique; Niels van Berkel (CHI Extended Abstracts, 2021)

Developing the Proactive Speaker Prototype Based on Google Home. - Jing Wei 002; Tilman Dingler; Vassilis Kostakos (CHI Extended Abstracts, 2021)

Making Sense of Emotion-Sensing: Workshop on Quantifying Human Emotions. - Benjamin Tag; Sarah Webber; Greg Wadley; Vanessa Bartlett; Jorge Gonçalves 001; Peter Koval; Petr Slovák; Wally Smith; Tom Hollenstein; Anna L. Cox; Vassilis Kostakos (UbiComp/ISWC Adjunct, 2021)

Quantifying the Effects of Age-Related Stereotypes on Online Social Conformity. - Senuri Wijenayake; Jolan Hu; Vassilis Kostakos; Jorge Gonçalves 001 (INTERACT (4), 2021)

InfoPrint: Embedding Information into 3D Printed Objects. - Weiwei Jiang 001; Chaofan Wang; Zhanna Sarsenbayeva; Andrew Irlitti; Jarrod Knibbe; Tilman Dingler; Jorge Gonçalves 001; Vassilis Kostakos (CoRR, 2021)

UbiNIRS: A Software Framework for Miniaturized NIRS-based Applications. - Weiwei Jiang 001; Zhanna Sarsenbayeva; Difeng Yu; Jing Wei 002; Niels van Berkel; Jorge Gonçalves 001; Vassilis Kostakos (CoRR, 2021)

A Survey of Context Simulation for Testing Mobile Context-Aware Applications. - Chu Luo; Jorge Gonçalves 001; Eduardo Velloso; Vassilis Kostakos (ACM Comput. Surv., 2021)

Modeling interaction as a complex system. - Niels van Berkel; Simon Dennis; Michael Zyphur; Jinjing Li; Andrew Heathcote; Vassilis Kostakos (Hum. Comput. Interact., 2021)

Information flow and cognition affect each other: Evidence from digital learning. - Kshitij Sharma; Katerina Mangaroska; Niels van Berkel; Michail N. Giannakos; Vassilis Kostakos (Int. J. Hum. Comput. Stud., 2021)

Understanding User Perceptions of Proactive Smart Speakers. - Jing Wei 002; Tilman Dingler; Vassilis Kostakos (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2021)

Passive Health Monitoring Using Large Scale Mobility Data. - Yunke Zhang; Fengli Xu; Tong Li 013; Vassilis Kostakos; Pan Hui 001; Yong Li 008 (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2021)

Effect of Conformity on Perceived Trustworthiness of News in Social Media. - Senuri Wijenayake; Danula Hettiachchi; Simo Hosio; Vassilis Kostakos; Jorge Gonçalves 001 (IEEE Internet Comput., 2021)

Understanding usage style transformation during long-term smartwatch use. - Aku Visuri; Niels van Berkel; Jorge Gonçalves 001; Reza Rawassizadeh; Denzil Ferreira; Vassilis Kostakos (Pers. Ubiquitous Comput., 2021)

Semantics-Aware Hidden Markov Model for Human Mobility. - Hongzhi Shi; Yong Li 008; Hancheng Cao; Xiangxin Zhou; Chao Zhang 014; Vassilis Kostakos (IEEE Trans. Knowl. Data Eng., 2021)

Architecting Analytics Across Multiple E-Learning Systems to Enhance Learning Design. - Katerina Mangaroska; Boban Vesin; Vassilis Kostakos; Peter Brusilovsky; Michail N. Giannakos (IEEE Trans. Learn. Technol., 2021)

Method for Appropriating the Brief Implicit Association Test to Elicit Biases in Users. - Tilman Dingler; Benjamin Tag; David A. Eccles; Niels van Berkel; Vassilis Kostakos (CHI, 2022)

Digital Emotion Regulation in Everyday Life. - Wally Smith; Greg Wadley; Sarah Webber; Benjamin Tag; Vassilis Kostakos; Peter Koval; James J. Gross (CHI, 2022)

The Future of Emotion in Human-Computer Interaction. - Greg Wadley; Vassilis Kostakos; Peter Koval; Wally Smith; Sarah Webber; Anna L. Cox; James J. Gross; Kristina Höök; Regan L. Mandryk; Petr Slovák (CHI Extended Abstracts, 2022)

What Could Possibly Go Wrong When Interacting with Proactive Smart Speakers? A Case Study Using an ESM Application. - Jing Wei 002; Benjamin Tag; Johanne R. Trippas; Tilman Dingler; Vassilis Kostakos (CHI, 2022)

Haptics in VR Using Origami-Augmented Drones. - Difeng Yu; Weiwei Jiang 001; Andrew Irlitti; Tilman Dingler; Eduardo Velloso; Jorge Gonçalves 001; Vassilis Kostakos (ISMAR Adjunct, 2022)

Hand Hygiene Quality Assessment Using Image-to-Image Translation. - Chaofan Wang; Kangning Yang; Weiwei Jiang 001; Jing Wei 002; Zhanna Sarsenbayeva; Jorge Gonçalves 001; Vassilis Kostakos (MICCAI (8), 2022)

Microservices-based IoT Applications Scheduling in Edge and Fog Computing: A Taxonomy and Future Directions. - Samodha Pallewatta; Vassilis Kostakos; Rajkumar Buyya (CoRR, 2022)

QoS-aware placement of microservices-based IoT applications in Fog computing environments. - Samodha Pallewatta; Vassilis Kostakos; Rajkumar Buyya (Future Gener. Comput. Syst., 2022)

Emotion trajectories in smartphone use: Towards recognizing emotion regulation in-the-wild. - Benjamin Tag; Zhanna Sarsenbayeva; Anna L. Cox; Greg Wadley; Jorge Gonçalves 001; Vassilis Kostakos (Int. J. Hum. Comput. Stud., 2022)

Quantifying determinants of social conformity in an online debating website. - Senuri Wijenayake; Niels van Berkel; Vassilis Kostakos; Jorge Gonçalves 001 (Int. J. Hum. Comput. Stud., 2022)

A System for Computational Assessment of Hand Hygiene Techniques. - Chaofan Wang; Weiwei Jiang 001; Kangning Yang; Zhanna Sarsenbayeva; Benjamin Tag; Tilman Dingler; Jorge Gonçalves 001; Vassilis Kostakos (J. Medical Syst., 2022)

Understanding How to Administer Voice Surveys through Smart Speakers. - Jing Wei 002; Weiwei Jiang 001; Chaofan Wang; Difeng Yu; Jorge Gonçalves 001; Tilman Dingler; Vassilis Kostakos (Proc. ACM Hum. Comput. Interact., 2022)

Out-of-the-Lab Pervasive Computing. - Florian Alt; Vassilis Kostakos; Nuria Oliver (IEEE Pervasive Comput., 2022)

A Retrospective and a Look Forward: Lessons Learned From Researching Emotions In-the-Wild. - Benjamin Tag; Jorge Gonçalves 001; Sarah Webber; Peter Koval; Vassilis Kostakos (IEEE Pervasive Comput., 2022)

Knock the Reality: Virtual Interface Registration in Mixed Reality. - Weiwei Jiang 001; Difeng Yu; Andrew Irlitti; Jorge Gonçalves 001; Vassilis Kostakos; Xin He (VR Workshops, 2023)

Using Thermal Imaging to Measure Hand Hygiene Quality. - Chaofan Wang; Weiwei Jiang 001; Kangning Yang; Zhanna Sarsenbayeva; Benjamin Tag; Tilman Dingler; Jorge Gonçalves 001; Vassilis Kostakos (CoRR, 2023)

Quality of Service (QoS)-driven Edge Computing and Smart Hospitals: A Vision, Architectural Elements, and Future Directions. - Rajkumar Buyya; Satish Narayana Srirama; Md. Redowan Mahmud; Mohammad Goudarzi; Leila Ismail; Vassilis Kostakos (CoRR, 2023)

Safeguarding Crowdsourcing Surveys from ChatGPT with Prompt Injection. - Chaofan Wang; Samuel Kernan Freire; Mo Zhang; Jing Wei 002; Jorge Gonçalves 001; Vassilis Kostakos; Zhanna Sarsenbayeva; Christina Schneegass; Alessandro Bozzon; Evangelos Niforatos (CoRR, 2023)

A Survey on Task Assignment in Crowdsourcing. - Danula Hettiachchi; Vassilis Kostakos; Jorge Gonçalves 001 (ACM Comput. Surv., 2023)

Placement of Microservices-based IoT Applications in Fog Computing: A Taxonomy and Future Directions. - Samodha Pallewatta; Vassilis Kostakos; Rajkumar Buyya (ACM Comput. Surv., 2023)

Methodological Standards in Accessibility Research-PLXBCCR- on Motor Impairments: A Survey. - Zhanna Sarsenbayeva; Niels van Berkel; Eduardo Velloso; Jorge Gonçalves 001; Vassilis Kostakos (ACM Comput. Surv., 2023)

"Instant Happiness": Smartphones as tools for everyday emotion regulation. - Yaoxi Shi; Peter Koval; Vassilis Kostakos; Jorge Gonçalves 001; Greg Wadley (Int. J. Hum. Comput. Stud., 2023)

DDoD: Dual Denial of Decision Attacks on Human-AI Teams. - Benjamin Tag; Niels van Berkel; Sunny Verma; Benjamin Zi Hao Zhao; Shlomo Berkovsky; Dali Kaafar; Vassilis Kostakos; Olga Ohrimenko (IEEE Pervasive Comput., 2023)

Near-infrared Imaging for Information Embedding and Extraction with Layered Structures. - Weiwei Jiang 001; Difeng Yu; Chaofan Wang; Zhanna Sarsenbayeva; Niels van Berkel; Jorge Gonçalves 001; Vassilis Kostakos (ACM Trans. Graph., 2023)

AWARE-Light: a smartphone tool for experience sampling and digital phenotyping. - Niels van Berkel; Simon D'Alfonso; Rio Kurnia Susanto; Denzil Ferreira; Vassilis Kostakos (Pers. Ubiquitous Comput., 2023)

Mapping 20 years of accessibility research in HCI: A co-word analysis. - Zhanna Sarsenbayeva; Niels van Berkel; Danula Hettiachchi; Benjamin Tag; Eduardo Velloso; Jorge Gonçalves 001; Vassilis Kostakos (Int. J. Hum. Comput. Stud., 2023)

InfoPrint: Embedding Interactive Information in 3D Prints Using Low-Cost Readily-Available Printers and Materials. - Weiwei Jiang 001; Chaofan Wang; Zhanna Sarsenbayeva; Andrew Irlitti; Jing Wei 002; Jarrod Knibbe; Tilman Dingler; Jorge Gonçalves 001; Vassilis Kostakos (Proc. ACM Interact. Mob. Wearable Ubiquitous Technol., 2023)

OOBKey: Key Exchange with Implantable Medical Devices Using Out-Of-Band Channels. - Mo Zhang; Eduard Marin; Mark Ryan 001; Vassilis Kostakos; Toby Murray; Benjamin Tag; David F. Oswald (ARES, 2024)

AI-Driven Mediation Strategies for Audience Depolarisation in Online Debates. - Jarod Govers; Eduardo Velloso; Vassilis Kostakos; Jorge Gonçalves 001 (CHI, 2024)

A Tool for Capturing Smartphone Screen Text. - Songyan Teng; Simon D'Alfonso; Vassilis Kostakos (CHI, 2024)

Efficient and Personalized Mobile Health Event Prediction via Small Language Models. - Xin Wang; Ting Dang; Vassilis Kostakos; Hong Jia (MobiCom, 2024)

AutoJournaling: A Context-Aware Journaling System Leveraging MLLMs on Smartphone Screenshots. - Tianyi Zhang; Shiquan Zhang; Le Fang; Hong Jia; Vassilis Kostakos; Simon D'Alfonso (MobiCom, 2024)

ScreenTK: Seamless Detection of Time-Killing Moments Using Continuous Mobile Screen Text and on-device LLM. - Le Fang; Shiquan Zhang; Hong Jia; Jorge Gonçalves 001; Vassilis Kostakos (CoRR, 2024)

Enabling On-Device LLMs Personalization with Smartphone Sensing. - Shiquan Zhang; Ying Ma; Le Fang; Hong Jia; Simon D'Alfonso; Vassilis Kostakos (CoRR, 2024)

Predicting Affective States from Screen Text Sentiment. - Songyan Teng; Tianyi Zhang; Simon D'Alfonso; Vassilis Kostakos (CoRR, 2024)

Unpacking Instagram use: The impact of upward social comparisons on usage patterns and affective experiences in the wild. - Jiwan Kim; Doyoung Lee; Mingyu Han; Jaeho Kim; Vassilis Kostakos; Ian Oakley (Int. J. Hum. Comput. Stud., 2024)

A toolkit for localisation queries. - Gabriele Marini; Jorge Gonçalves 001; Eduardo Velloso; Raja Jurdak; Vassilis Kostakos (Pervasive Mob. Comput., 2024)

MicroFog: A framework for scalable placement of microservices-based IoT applications in federated Fog environments. - Samodha Pallewatta; Vassilis Kostakos; Rajkumar Buyya (J. Syst. Softw., 2024)

Mobile Near-infrared Sensing - A Systematic Review on Devices, Data, Modeling, and Applications. - Weiwei Jiang 001; Jorge Gonçalves 001; Vassilis Kostakos (ACM Comput. Surv., 2024)

Reliability-Aware Proactive Placement of Microservices-Based IoT Applications in Fog Computing Environments. - Samodha Pallewatta; Vassilis Kostakos; Rajkumar Buyya (IEEE Trans. Mob. Comput., 2024)

Gazing at Failure: Investigating Human Gaze in Response to Robot Failure in Collaborative Tasks. - Ramtin Tabatabaei; Vassilis Kostakos; Wafa Johal (HRI, 2025)

Real-Time Detection of Robot Failures Using Gaze Dynamics in Collaborative Tasks. - Ramtin Tabatabaei; Vassilis Kostakos; Wafa Johal (HRI, 2025)

Beyond Scale: Small Language Models are Comparable to GPT-4 in Mental Health Understanding. - Hong Jia; Shiya Fu; Feng Xia; Vassilis Kostakos; Ting Dang (CoRR, 2025)