Vassilis Kostakos

2023

Zhanna Sarsenbayeva, Niels van Berkel, Danula Hettiachchi, Benjamin Tag, Eduardo Velloso, Jorge Goncalves, Vassilis Kostakos. 2023. "Mapping 20 years of accessibility research in HCI: A co-word analysis", International Journal of Human-Computer Studies, vol. 175, article 103018, 15 pages. [Impact factor: 3.632] [Ranking: A]
[pdf] [doi] [bib]
Michelle H. Lim, Lily Thurston, Robert Eres, Thomas L. Rodebaugh, Mario Alvarez‐Jimenezv, David L. Penn, Vassilis Kostakos, John F. M. Gleeson. 2023. "A pilot randomised controlled trial of the Peer Tree digital intervention targeting loneliness in young people: a study protocol", Trials, vol. 24, article 77, 13 pages. [Impact factor: 2.728]
[pdf] [doi] [bib]
Weiwei Jiang, Difeng Yu, Chaofan Wang, Zhanna Sarsenbayeva, Niels van Berkel, Jorge Goncalves, Vassilis Kostakos. 2023. "Near-Infrared Imaging for Information Embedding and Extraction with Layered Structures", ACM Transactions on Graphics, vol. 42, no. 1, article 4, 26 pages. [Impact factor: 12.03] [Ranking: A*]
[pdf] [doi] [bib]

2022

Niels van Berkel, Simon D'Alfonso, Rio Kurnia Susanto, Denzil Ferreira, Vassilis Kostakos. 2022. "AWARE-Light: a smartphone tool for experience sampling and digital phenotyping", Personal and Ubiquitous Computing. [Impact factor: 3.006] [Ranking: B]
[pdf] [doi] [bib]
Jing Wei, Weiwei Jiang, Chaofan Wang, Difeng Yu, Jorge Goncalves, Tilman Dingler, Vassilis Kostakos. 2022. "Understanding How to Administer Voice Surveys through Smart Speakers", Proceedings of the ACM on Human-Computer Interaction, vol. 6, no. CSCW2, article 548, 32 pages. [Ranking: A]
[pdf] [doi] [bib] [Citations: 1]
Yaoxi Shi, Peter Koval, Vassilis Kostakos, Jorge Goncalves, Greg Wadley. 2022. "``Instant Happiness'': Smartphones as Tools for Everyday Emotion Regulation", International Journal of Human-Computer Studies, article 102958, pages. [Impact factor: 3.632] [Ranking: A]
[doi] [bib] [Citations: 2]
Benjamin Tag, Zhanna Sarsenbayeva, Anna Cox, Greg Wadley, Jorge Goncalves, Vassilis Kostakos. 2022. "Emotion trajectories in smartphone use: Towards recognizing emotion regulation in-the-wild", International Journal of Human-Computer Studies, vol. 166, article 102872, 14 pages. [Impact factor: 3.632] [Ranking: A]
[pdf] [doi] [bib] [Citations: 1]
Zhanna Sarsenbayeva, Niels van Berkel, Eduardo Velloso, Jorge Goncalves, Vassilis Kostakos. 2022. "Methodological Standards in Accessibility Research on Motor Impairments: A Survey", ACM Computing Surveys. [Impact factor: 10.282] [Ranking: A*]
[pdf] [doi] [bib] [Citations: 2]
Chaofan Wang, Weiwei Jiang, Kangin Yang, Zhanna Sarsenbayeva, Benjamin Tag, Jorge Goncalves, Vassilis Kostakos. 2022. "A System for Computational Assessment of Hand Hygiene Techniques", Journal of Medical Systems, vol. 46, article 32, 12 pages. [Impact factor: 4.460]
[pdf] [doi] [bib] [Citations: 1]
Benjamin Tag, Niels van Berkel, Andrew W. Vargo, Zhanna Sarsenbayeva, Tyler Colasante, Greg Wadley, Sarah Webber, Wally Smith, Peter Koval, Tom Hollenstein, Jorge Goncalves, Vassilis Kostakos. 2022. "Impact of the global pandemic upon young People's use of technology for emotion regulation", Computers in Human Behavior Reports, vol. 6, article 100192, 22 pages.
[pdf] [doi] [bib] [Citations: 4]
Florian Alt, Vassilis Kostakos, Nuria Olivier. 2022. "Out-of-the-Lab Pervasive Computing (Editorial)", IEEE Pervasive Computing, vol. 21, no. 1, pp. 7-8. [Impact factor: 3.175] [Ranking: A]
[pdf] [doi] [bib]
Samodha Pallewatta, Vassilis Kostakos, Rajkumar Buyya. 2022. "QoS-aware placement of microservices-based IoT applications in Fog computing environments", Future Generation Computer Systems, vol. 131, pp. 121-136. [Impact factor: 7.187] [Ranking: A]
[pdf] [doi] [bib] [Citations: 15]
Danula Hettiachchi, Vassilis Kostakos, Jorge Goncalves. 2022. "A Survey on Task Assignment in Crowdsourcing", ACM Computing Surveys, vol. 55, no. 3, article 49, 35 pages. [Impact factor: 10.282] [Ranking: A*]
[pdf] [doi] [bib] [Citations: 7]
Senuri Wijenayake, Niels van Berkel, Vassilis Kostakos, Jorge Goncalves. 2022. "Quantifying determinants of social conformity in an online debating website", International Journal of Human-Computer Studies, vol. 158, article 102743, 16 pages. [Impact factor: 3.632] [Ranking: A]
[pdf] [doi] [bib] [Citations: 1]
Benjamin Tag, Jorge Goncalves, Sarah Webber, Peter Koval, Vassilis Kostakos. 2022. "A Retrospective and a Look Forward: Lessons Learned From Researching Emotions In-the-Wild", IEEE Pervasive Computing, vol. 21, no. 1, pp. 28-36. [Impact factor: 3.175] [Ranking: A]
[pdf] [doi] [bib] [Citations: 5]

2021

Jing Wei, Tilman Dingler, Vassilis Kostakos. 2021. "Understanding User Perceptions of Proactive Smart Speakers", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 5, no. 3, article 185, 28 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 8]
Chaofan Wang, Weiwei Jiang, Kangning Yang, Difeng Yu, Joshua Newn, Zhanna Sarsenbayeva, Jorge Goncalves, Vassilis Kostakos. 2021. "Electronic Monitoring Systems for Hand Hygiene: Systematic Review of Technology", Journal of Medical Internet Research, vol. 23, no. 11, article e27880, 29 pages. [Impact factor: 5.43]
[pdf] [doi] [bib] [Citations: 7]
Danula Hettiachchi, Lachlan Hayes, Jorge Goncalves, Vassilis Kostakos. 2021. "Team Dynamics in Hospital Workflows: An Exploratory Study of a Smartphone Task Manager", JMIR Medical Informatics, vol. 9, no. 8, article e28245, 9 pages. [Impact factor: 2.96]
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Katerina Mangaroska, Boban Vesin, Vassilis Kostakos, Peter Brusilovsky, Michail Giannakos. 2021. "Architecting Analytics Across Multiple E-learning Systems to Enhance Learning Design", IEEE Transactions on Learning Technologies, vol. 14, no. 2, pp. 173-188. [Impact factor: 3.720]
[pdf] [doi] [bib] [Citations: 13]
Yunke Zhang, Fengli Xu, Tong Li, Vassilis Kostakos, Pan Hui, Yong Li. 2021. "Passive Health Monitoring Using Large Scale Mobility Data", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 5, no. 1, article 49, 23 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 10]
Aku Visuri, Niels van Berkel, Jorge Goncalves, Rezza Rawassizadeh, Denzil Ferreira, Vassilis Kostakos. 2021. "Understanding usage style transformation during long-term smartwatch use", Personal and Ubiquitous Computing, vol. 25, pp. 535-549. [Impact factor: 3.006] [Ranking: B]
[pdf] [doi] [bib] [Citations: 7]
Kshitij Sharma, Katerina Mangaroska, Niels van Berkel, Michail Giannakos, Vassilis Kostakos. 2021. "Information flow and cognition affect each other: Evidence from digital learning", International Journal of Human-Computer Studies, vol. 146, article 102549, 20 pages. [Impact factor: 3.632] [Ranking: A]
[pdf] [doi] [bib] [Citations: 10]
Niels van Berkel, Simon Dennis, Michael Zyphur, Jinjing Li, Andrew Heathcote, Vassilis Kostakos. 2021. "Modeling interaction as a complex system", Human-Computer Interaction, vol. 36, no. 4, pp. 279-305. [Impact factor: 4.750] [Ranking: A]
[pdf] [doi] [bib] [Citations: 23]
Hongzhi Shi, Yong Li, Hancheng Cao, Xiangxin Zhou, Chao Zhang, Vassilis Kostakos. 2021. "Semantics-Aware Hidden Markov Model for Human Mobility", IEEE Transactions on Knowledge and Data Engineering, vol. 33, no. 3, pp. 1183-1194. [Impact factor: 6.977] [Ranking: A*]
[pdf] [doi] [bib] [Citations: 27]

2020

Gabriele Marini, Benjamin Tag, Jorge Goncalves, Eduardo Velloso, Raja Jurdak, Daniel Capurro, Clare McCarthy, William Shearer, Vassilis Kostakos. 2020. "Measuring Mobility and Room Occupancy in Clinical Settings: System Development and Implementation", JMIR mHealth and uHealth, vol. 8, no. 10, article e19874, 17 pages. [Impact factor: 4.773]
[pdf] [doi] [bib] [Citations: 1]
Senuri Wijenayake, Danula Hettiachchi, Simo Hosio, Vassilis Kostakos, Jorge Goncalves. 2020. "Effect of Conformity on Perceived Trustworthiness of News in Social Media", IEEE Internet Computing, pp. 1-8. [Impact factor: 2.341] [Ranking: B]
[pdf] [doi] [bib] [Citations: 9]
Yitong Chen, Niels van Berkel, Chu Luo, Zhanna Sarsenbayeva, Vassilis Kostakos. 2020. "Application of miniaturized near-infrared spectroscopy in pharmaceutical identification", Smart Health, vol. 18, article 100126, 6 pages. [Impact factor: 1.4]
[pdf] [doi] [bib] [Citations: 3]
Zhilong Chen, Hancheng Cao, Huangdong Wang, Fengli Xu, Vassilis Kostakos, Yong Li. 2020. "Will You Come Back / Check-in Again? Understanding Characteristics Leading to Urban Revisitation and Re-Check-In", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 4, no. 3, article 76, 27 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 9]
Kshitij Sharma, Evangelos Niforatos, Michail Giannakos, Vassilis Kostakos. 2020. "Assessing Cognitive Performance Using Physiological and Facial Features: Generalizing across Contexts", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 4, no. 3, article 95, 41 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 25]
Danula Hettiachchi, Niels van Berkel, Vassilis Kostakos, Jorge Goncalves. 2020. "CrowdCog: A Cognitive Skill based System for Heterogeneous Task Assignment and Recommendation in Crowdsourcing", Proceedings of the ACM on Human-Computer Interaction, vol. 4, no. CSCW, article 110, 22 pages. [Ranking: A]
[pdf] [doi] [bib] [Citations: 24]
Oliver Amft, Jesus Favela, Stephen Intille, Mirco Musolesi, Vassilis Kostakos. 2020. "Personalized Pervasive Health (Editorial)", IEEE Pervasive Computing, vol. 19, no. 3, pp. 11-13. [Impact factor: 3.175] [Ranking: A]
[pdf] [doi] [bib] [Citations: 10]
Benjamin Tag, Tilman Dingler, Andrew W. Vargo, Vassilis Kostakos. 2020. "Inferring Circadian Rhythms of Cognitive Performance in Everyday Life", IEEE Pervasive Computing, vol. 19, no. 3, pp. 14-23. [Impact factor: 3.175] [Ranking: A]
[pdf] [doi] [bib] [Citations: 2]
Senuri Wijenayake, Niels van Berkel, Vassilis Kostakos, Jorge Goncalves. 2020. "Quantifying the Effect of Social Presence on Online Social Conformity", Proceedings of the ACM on Human-Computer Interaction, vol. 4, no. CSCW, article 55, 22 pages. [Ranking: A]
[pdf] [doi] [bib] [Citations: 8]
Theodoros Anagnostopoulos, Chu Luo, Jino Ramson, Klimis Ntalianis, Vassilis Kostakos, Christos Skourlas. 2020. "A multi-agent system for distributed smartphone sensing cycling in smart cities", Journal of Systems and Information Technology, vol. 22, no. 4, pp. 119-134. [Impact factor: 1.37] [Ranking: C]
[pdf] [doi] [bib] [Citations: 2]
Chaofan Wang, Zhanna Sarsenbayeva, Xiuge Chen, Tilman Dingler, Jorge Goncalves, Vassilis Kostakos. 2020. "Accurate Measurement of Handwash Quality Using Sensor Armbands: Instrument Validation Study", JMIR mHealth and uHealth, vol. 8, no. 3, article e17001, 18 pages. [Impact factor: 4.773]
[pdf] [doi] [bib] [Citations: 30]
Vassilis Kostakos, Bran Knowles, Panos Markopoulos, Koji Yatani. 2020. "Growing Up With Pervasive Computing (Editorial)", IEEE Pervasive Computing, vol. 19, no. 1, pp. 8-9. [Impact factor: 3.175] [Ranking: A]
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Senuri Wijenayake, Niels van Berkel, Vassilis Kostakos, Jorge Goncalves. 2020. "Impact of contextual and personal determinants on online social conformity", Computers in Human Behavior, vol. 108, article 106302, 11 pages. [Impact factor: 6.829]
[pdf] [doi] [bib] [Citations: 41]
Chu Luo, Jorge Goncalves, Eduardo Velloso, Vassilis Kostakos. 2020. "A Survey of Context Simulation for Testing Mobile Context-Aware Applications", ACM Computing Surveys, vol. 53, no. 1, article 21, 39 pages. [Impact factor: 10.282] [Ranking: A*]
[pdf] [doi] [bib] [Citations: 25]
Michail N. Giannakos, Sofia Papavlasopoulou, Vassilis Kostakos, Ilias Pappas, Kshitij Sharma. 2020. "Fitbit for Learning: Towards capturing the learning experience using wearable sensing", International Journal of Human-Computer Studies, vol. 136, article 102384, 14 pages. [Impact factor: 3.632] [Ranking: A]
[pdf] [doi] [bib] [Citations: 42]
Niels van Berkel, Jorge Goncalves, Simo Hosio, Zhanna Sarsenbayeva, Eduardo Velloso, Vassilis Kostakos. 2020. "Overcoming Compliance Bias in Self-Report Studies: A Cross-Study Analysis", International Journal of Human-Computer Studies, vol. 134, pp. 1-12. [Impact factor: 3.632] [Ranking: A]
[pdf] [doi] [bib] [Citations: 34]

2019

Weiwei Jiang, Gabriele Marini, Niels van Berkel, Zhanna Sarsenbayeva, Zheyu Tan, Chu Luo, Xin He, Tilman Dingler, Jorge Goncalves, Yoshihiro Kawahara, Vassilis Kostakos. 2019. "Probing Sucrose Contents in Everyday Drinks Using Miniaturized Near-Infrared Spectroscopy Scanners", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 3, no. 4, article 136, 25 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 16]
Niels van Berkel, Jorge Goncalves, Danula Hettiachchi, Senuri Wijenayake, Ryan M. Kelly, Vassilis Kostakos. 2019. "Crowdsourcing Perceptions of Fair Predictors for Machine Learning: A Recidivism Case Study", Proceedings of the ACM on Human-Computer Interaction, vol. 3, no. CSCW, article 28, 21 pages. [Ranking: A]
[pdf] [doi] [bib] [Citations: 50]
Chu Luo, Zewen Xu, Ruining Dong, Jorge Goncalves, Eduardo Velloso, Vassilis Kostakos. 2019. "CamTest: A laboratory testbed for camera-based mobile sensing applications", Pervasive and Mobile Computing, vol. 56, pp. 106-131. [Impact factor: 3.453] [Ranking: B]
[pdf] [doi] [bib] [Citations: 1]
Senuri Wijenayake, Niels van Berkel, Vassilis Kostakos, Jorge Goncalves. 2019. "Measuring the Effects of Gender on Online Social Conformity", Proceedings of the ACM on Human-Computer Interaction, vol. 3, no. CSCW, article 145, 24 pages. [Ranking: A]
[pdf] [doi] [bib] [Citations: 15]
Zhanna Sarsenbayeva, Niels van Berkel, Danula Hettiachchi, Weiwei Jiang, Tilman Dingler, Eduardo Velloso, Vassilis Kostakos, Jorge Goncalves. 2019. "Measuring the Effects of Stress on Mobile Interaction", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 3, no. 1, article 24, 18 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 27]
Aku Visuri, Niels van Berkel, Tadashi Okoshi, Jorge Goncalves, Vassilis Kostakos. 2019. "Understanding smartphone notifications' user interactions and content importance", International Journal of Human-Computer Studies, vol. 128, pp. 72-85. [Impact factor: 3.632] [Ranking: A]
[pdf] [doi] [bib] [Citations: 39]
Michail Giannakos, Kshitij Sharma, Ilias O. Pappas, Vassilis Kostakos, Eduardo Velloso. 2019. "Multimodal data as a means to understand the learning experience", International Journal of Information Management, vol. 48, pp. 108-119. [Impact factor: 14.098]
[pdf] [doi] [bib] [Citations: 118]
Chu Luo, Aku Visuri, Simon Klakegg, Niels van Berkel, Zhanna Sarsenbayeva, Antti Möttönen, Jorge Goncalves, Theodoros Anagnostopoulos, Denzil Ferreira, Huber Flores, Eduardo Velloso, Vassilis Kostakos. 2019. "Energy-efficient prediction of smartphone unlocking", Personal and Ubiquitous Computing, vol. 23, no. 1, pp. 159-177. [Impact factor: 3.006] [Ranking: B]
[pdf] [doi] [bib] [Citations: 4]
Niels van Berkel, Jorge Goncalves, Lauri Lovén, Denzil Ferreira, Simo Hosio, Vassilis Kostakos. 2019. "Effect Of Experience Sampling Schedules On Response Rate And Recall Accuracy Of Objective Self-Reports", International Journal of Human-Computer Studies, vol. 125, pp. 118-128. [Impact factor: 3.632] [Ranking: A]
[pdf] [doi] [bib] [Citations: 64]
Miguel Bordallo Lopez, Abdenour Hadid, Elhocine Boutellaa, Jorge Goncalves, Vassilis Kostakos, Simo Hosio. 2019. "Kinship Verification from Facial Images and Videos: Human vs. Machine", Machine Vision and Applications, vol. 29, no. 5, pp. 873-890. [Impact factor: 2.012] [Ranking: B]
[pdf] [doi] [bib] [Citations: 27]

2018

Simo Hosio, Jorge Goncalves, Niels van Berkel, Simon Klakegg, Vassilis Kostakos. 2018. "Facilitating Collocated Crowdsourcing on Situated Displays", Human-Computer Interaction, vol. 33, no. 5-6, pp. 335-371. [Impact factor: 4.750] [Ranking: A]
[pdf] [doi] [bib] [Citations: 14]
Huber Flores, Pan Hui, Petteri Nurmi, Eemil Lagerspetz, Sasu Tarkoma, Jukka Manner, Vassilis Kostakos, Yong Li, Xiang Su. 2018. "Evidence-aware Mobile Computational Offloading", IEEE Transactions on Mobile Computing, vol. 17, no. 8, pp. 1834-1850. [Impact factor: 5.577] [Ranking: A*]
[pdf] [doi] [bib] [Citations: 42]
Hancheng Cao, Zhilong Chen, Fengli Xu, Yong Li, Vassilis Kostakos. 2018. "Revisitation in Urban Space vs. Online: A Comparison across POIs, Websites, and Smartphone Apps", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 2, no. 4, article 156, 25 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 31]
Hancheng Cao, Jie Feng, Yong Li, Vassilis Kostakos. 2018. "Uniqueness in the City: Urban Morphology and Location Privacy", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 2, no. 2, pp. 1-20. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 17]
Simon Klakegg, Jorge Goncalves, Aku Visuri, Chu Luo, Alexander Popov, Niels van Berkel, Zhanna Sarsenbayeva, Vassilis Kostakos, Simo Hosio, Scott Savage, Alexander Bykov, Igor Meglinski, Denzil Ferreira. 2018. "Assisted Medication Management in Elderly Care Using Miniaturised Near-Infrared Spectroscopy", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 2, no. 2, article 69, 24 pages. [Ranking: A*. Distinguished Paper Award]
[pdf] [doi] [bib] [Citations: 22]
Zhanna Sarsenbayeva, Niels van Berkel, Eduardo Velloso, Vassilis Kostakos, Jorge Goncalves. 2018. "Effect of Distinct Ambient Noise Types on Mobile Interaction", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 2, no. 2, article 82, 23 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 27]
Donghan Yu, Yong Li, Fengli Xu, Pengyu Zhang, Vassilis Kostakos. 2018. "Smartphone App Usage Prediction Using Points of Interest", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 1, no. 4, article 174, 21 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 77]
Yu Zhang, Tao Gu, Chu Luo, Vassilis Kostakos, Aruna Seneviratne. 2018. "FinDroidHR: Smartwatch Gesture Input with Optical Heartrate Monitor", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 2, no. 1, article 56, 42 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 26]

2017

Niels van Berkel, Denzil Ferreira, Vassilis Kostakos. 2017. "The Experience Sampling Method on Mobile Devices", ACM Computing Surveys, vol. 50, no. 6, article 93, 40 pages. [Impact factor: 10.282] [Ranking: A*]
[pdf] [doi] [bib] [Citations: 392]
Jorge Goncalves, Simo Hosio, Vassilis Kostakos. 2017. "Eliciting Structured Knowledge from Situated Crowd Markets", ACM Transactions on Internet Technology, vol. 17, no. 2, article 14, 21 pages. [Impact factor: 3.135] [Ranking: B]
[pdf] [doi] [bib] [Citations: 7]
Anabela Berenguer, Jorge Goncalves, Simo Hosio, Denzil Ferreira, Theodoros Anagnostopoulos, Vassilis Kostakos. 2017. "Are Smartphones Ubiquitous? An In-depth Survey of Smartphone Adoption by Seniors", IEEE Consumer Electronics Magazine, vol. 6, no. 1, pp. 104-110. [Impact factor: 3.789]
[pdf] [doi] [bib] [Citations: 155]
Yong Liu, Jozsef Mezei, Vassilis Kostakos, Hongxiu Li. 2017. "Applying Configurational Analysis to IS Behavioural Research: a Methodological Alternative for Modelling Combinatorial Complexities", Information Systems Journal, vol. 27, no. 1, pp. 59-89. [Impact factor: 7.453] [Ranking: A*]
[pdf] [doi] [bib] [Citations: 158]
Andreas Komninos, Jeries Besharat, Denzil Ferreira, John Garofalakis, Vassilis Kostakos. 2017. "Where's everybody? Comparing the use of heatmaps to uncover cities' tacit social context in smartphones and pervasive displays", Information Technology & Tourism, vol. 17, no. 4, pp. 399-427. [Impact factor: 2.449]
[pdf] [doi] [bib] [Citations: 12]
Jorge Goncalves, Zhanna Sarsenbayeva, Niels van Berkel, Simo Hosio, Sirkka Rissanen, Hannu Rintamaki, Vassilis Kostakos. 2017. "Tapping Task Performance on Smartphones in Cold Temperature", Interacting with Computers, vol. 29, no. 3, pp. 355-367. [Impact factor: 1.174] [Ranking: B]
[pdf] [doi] [bib] [Citations: 24]
Yong Liu, Denzil Ferreira, Jorge Goncalves, Simo Hosio, Pratyush Pandab, Vassilis Kostakos. 2017. "Donating Context Data to Science: The Effects of Social Signals and Perceptions on Action-Taking", Interacting with Computers, vol. 29, no. 2, pp. 132-146. [Impact factor: 1.174] [Ranking: B]
[pdf] [doi] [bib] [Citations: 10]
Vassilis Kostakos, Mirco Musolesi. 2017. "Avoiding pitfalls when using machine learning in HCI studies", Interactions, vol. 24, no. 4, pp. 34-37.
[pdf] [doi] [bib] [Citations: 12]
Tomoyo Sasao, Shinichi Konomi, Vassilis Kostakos, Keisuke Kuribayashi, Jorge Goncalves. 2017. "Community Reminder: Participatory Contextual Reminder Environments for Local Communities", International Journal of Human-Computer Studies, vol. 102, pp. 41-53. [Impact factor: 3.632] [Ranking: A]
[pdf] [doi] [bib] [Citations: 15]
Theodoros Anagnostopoulos, Juan Camilo Garcia, Jorge Goncalves, Denzil Ferreira, Simo Hosio, Vassilis Kostakos. 2017. "Environmental exposure assessment using indoor/outdoor detection on smartphones", Personal and Ubiquitous Computing, vol. 21, no. 4, pp. 761-773. [Impact factor: 3.006] [Ranking: B]
[pdf] [doi] [bib] [Citations: 17]
Huber Flores, Rajesh Sharma, Denzil Ferreira, Vassilis Kostakos, Sasu Tarkoma, Pan Hui, Yong Li. 2017. "Social-aware Hybrid Mobile Offloading", Pervasive and Mobile Computing, vol. 36, pp. 25-43. [Impact factor: 3.453] [Ranking: B]
[pdf] [doi] [bib] [Citations: 54]
Gregory D. Abowd, Vassilis Kostakos, Silvia Santini, James Scott, Koji Yatani. 2017. "Editorial", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 1, no. 1, pp. 1.
[pdf] [doi] [bib]
Jorge Goncalves, Simo Hosio, Niels van Berkel, Furqan Ahmed, Vassilis Kostakos. 2017. "CrowdPickUp: Crowdsourcing Task Pickup in the Wild", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 1, no. 3, article 51, 22 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 20]
Chu Luo, Miikka Kuutila, Simon Klakegg, Denzil Ferreira, Jorge Goncalves, Mika Mantyla, Vassilis Kostakos. 2017. "TestAWARE: A Laboratory-Oriented Testing Tool for Mobile Context-Aware Applications", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 1, no. 3, article 80, 29 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 12]
Zhanna Sarsenbayeva, Niels van Berkel, Aku Visuri, Sirkka Rissanen, Hannu Rintamaki, Vassilis Kostakos, Jorge Goncalves. 2017. "Sensing Cold-Induced Situational Impairments in Mobile Interaction", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 1, no. 3, article 98, 10 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 18]
Niels van Berkel, Jorge Goncalves, Simo Hosio, Vassilis Kostakos. 2017. "Gamification of Mobile Experience Sampling Improves Data Quality and Quantity", Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies (IMWUT), vol. 1, no. 3, article 107, 21 pages. [Ranking: A*]
[pdf] [doi] [bib] [Citations: 79]

2016

Matti Pouke, Jorge Goncalves, Denzil Ferreira, Vassilis Kostakos. 2016. "Practical simulation for virtual crowds using points of interest", Computers, Environment and Urban Systems, vol. 57, pp. 118-129. [Impact factor: 5.324]
[pdf] [doi] [bib] [Citations: 22]
Yong Liu, Hongxiu Li, Jorge Goncalves, Vassilis Kostakos, Bin Xiao. 2016. "Fragmentation or Cohesion? Visualizing the Process and Consequences of Information System Diversity, 1993-2012", European Journal of Information Systems, vol. 25, no. 6, pp. 509-533. [Impact factor: 4.344] [Ranking: A*]
[pdf] [doi] [bib] [Citations: 27]
Simo Hosio, Hannu Kukka, Jorge Goncalves, Vassilis Kostakos, Timo Ojala. 2016. "Toward Meaningful Engagement with Pervasive Displays", IEEE Pervasive Computing, vol. 15, no. 3, pp. 24-31. [Impact factor: 3.175] [Ranking: A]
[pdf] [doi] [bib] [Citations: 20]
Yong Liu, H. Li, X. Xu, Vassilis Kostakos, J. Heikkila. 2016. "Modeling Consumer Switching Behavior in Social Network Games by Exploring Consumer Cognitive Dissonance and Change Experience", Industrial Management & Data Systems, vol. 116, no. 4, pp. 801-820. [Impact factor: 5.577]
[pdf] [doi] [bib] [Citations: 61]
Jorge Goncalves, Simo Hosio, Yong Liu, Vassilis Kostakos. 2016. "Worker performance in a situated crowdsourcing market", Interacting with Computers, vol. 28, no. 5, pp. 612-624. [Impact factor: 1.174] [Ranking: B]
[pdf] [doi] [bib] [Citations: 5]
Theodoros Anagnostopoulos, Denzil Ferreira, Alexander Samodelkin, Muzamil Ahmed, Vassilis Kostakos. 2016. "Cyclist-aware traffic lights through distributed smartphone sensing", Pervasive and Mobile Computing, vol. 31, pp. 22-36. [Impact factor: 3.453] [Ranking: B]
[pdf] [doi] [bib] [Citations: 24]

2015

Jorge Goncalves, Simo Hosio, Jacob Rogstadius, Evangelos Karapanos, Vassilis Kostakos. 2015. "Motivating Participation and Improving Quality of Contribution in Ubiquitous Crowdsourcing", Computer Networks, vol. 90, pp. 34-48. [Impact factor: 3.111] [Ranking: A]
[pdf] [doi] [bib] [Citations: 63]
Denzil Ferreira, Vassilis Kostakos, Anind K. Dey. 2015. "AWARE: mobile context instrumentation framework", Frontiers in ICT, vol. 2, no. 6, pp. 1-9. [Impact factor: 2.283]
[pdf] [doi] [bib] [Citations: 373]
Vassilis Kostakos, Denzil Ferreira. 2015. "The Rise Of Ubiquitous Instrumentation", Frontiers in ICT, vol. 2, no. 3, pp. 1-2. [Impact factor: 2.283]
[pdf] [doi] [bib] [Citations: 9]
Vassilis Kostakos. 2015. "The big hole in HCI research", Interactions, vol. 22, no. 2, pp. 48-51.
[pdf] [doi] [bib] [Citations: 53]
Mikko Perttunen, Vassilis Kostakos, Jukka Riekki, Timo Ojala. 2015. "Urban traffic analysis through multi-modal sensing", Personal and Ubiquitous Computing, vol. 19, no. 3, pp. 709-721. [Impact factor: 3.006] [Ranking: B]
[pdf] [doi] [bib] [Citations: 27]
Yong Liu, Vassilis Kostakos, Hongxiu Li. 2015. "Climatic Effects on Planning Behavior", PLoS ONE, vol. 10, no. 5, article e0126205, 9 pages. [Impact factor: 3.240]
[pdf] [doi] [bib] [Citations: 9]
Jorge Goncalves, Yong Liu, Bin Xiao, Saad Chaundhry, Simo Hosio, Vassilis Kostakos. 2015. "Increasing the Reach of Government Social Media: A Case Study in Modeling Government-Citizen Interaction on Facebook", Policy & Internet, vol. 7, no. 1, pp. 80-102. [Impact factor: 2.763]
[pdf] [doi] [bib] [Citations: 34]
Simo Hosio, Jorge Goncalves, Vassilis Kostakos, Jukka Riekki. 2015. "Crowdsourcing Public Opinion using Urban Pervasive Technologies: Lessons from Real-Life Experiments in Oulu", Policy & Internet, vol. 7, no. 2, pp. 203-222. [Impact factor: 2.763]
[pdf] [doi] [bib] [Citations: 67]

2014

Yong Liu, Jayant Venkatanathan, Jorge Goncalves, Evangelos Karapanos, Vassilis Kostakos. 2014. "Modeling what friendship patterns on Facebook reveal about personality and social capital", ACM Transactions on Computer-Human Interaction, vol. 21, no. 3, article 17, 20 pages. [Impact factor: 2.351] [Ranking: A*]
[pdf] [doi] [bib] [Citations: 36]
Mikko Perttunen, Vassilis Kostakos, Jukka Riekki, Timo Ojala. 2014. "Spatio-temporal patterns link your digital identities", Computers, Environment and Urban Systems, vol. 47, pp. 58-67. [Impact factor: 5.324]
[pdf] [doi] [bib] [Citations: 9]
Jorge Goncalves, Simo Hosio, Yong Liu, Vassilis Kostakos. 2014. "Eliciting Situated Feedback: A Comparison of Paper, Web Forms and Public Displays", Displays, vol. 35, no. 1, pp. 27-37. [Impact factor: 2.167] [Ranking: B]
[pdf] [doi] [bib] [Citations: 33]
Yong Liu, Hongxiu Li, Vassilis Kostakos, Jorge Goncalves, Simo Hosio, Feng Hu. 2014. "An Empirical Investigation of Mobile Government Adoption in Rural China: A Case Study in Zhejiang Province", Government Information Quarterly, vol. 31, no. 3, pp. 432-442. [Impact factor: 7.279] [Ranking: B]
[pdf] [doi] [bib] [Citations: 194]
Jorge Goncalves, Vassilis Kostakos, Evangelos Karapanos, Miguel Barreto, Tiago Camacho, Anthony Tomasic, John Zimmerman. 2014. "Citizen Motivation on the Go: The Role of Psychological Empowerment", Interacting with Computers, vol. 26, no. 3, pp. 196-207. [Impact factor: 1.174] [Ranking: B]
[pdf] [doi] [bib] [Citations: 54]
Jayant Venkatanathan, Vassilis Kostakos, Evangelos Karapanos, Jorge Goncalves. 2014. "Online Disclosure of Personally Identifiable Information with Strangers: Effects of Public and Private Sharing", Interacting with Computers, vol. 26, no. 6, pp. 614-626. [Impact factor: 1.174] [Ranking: B]
[pdf] [doi] [bib] [Citations: 17]
Christos Katsanos, Nikolaos Tselios, Jorge Goncalves, Tomi Juntunen, Vassilis Kostakos. 2014. "Multipurpose Public Displays: Can Automated Grouping of Applications and Services Enhance User Experience?", International Journal of Human-Computer Interaction, vol. 30, no. 3, pp. 237-249. [Impact factor: 3.353] [Ranking: B]
[pdf] [doi] [bib] [Citations: 12]
Hannu Kukka, Anna Luusua, Johanna Ylipulli, Tiina Suopajarvi, Vassilis Kostakos, Timo Ojala. 2014. "From cyberpunk to calm urban computing: Exploring the role of technology in the future cityscape", Technological Forecasting & Social Change, vol. 84, pp. 29-42. [Impact factor: 5.846]
[pdf] [doi] [bib] [Citations: 51]
Johanna Ylipulli, Tiina Suopajarvi, Timo Ojala, Vassilis Kostakos, Hannu Kukka. 2014. "Municipal WiFi and interactive displays: Appropriation of new technologies in public urban spaces", Technological Forecasting & Social Change, vol. 89, pp. 145-160. [Impact factor: 5.846]
[pdf] [doi] [bib] [Citations: 87]

2013

Jacob Rogstadius, Claudio Teixeira, Maja Vukovic, Vassilis Kostakos, Evangelos Karapanos, Jim Laredo. 2013. "CrisisTracker: Crowdsourced Social Media Curation for Disaster Awareness", IBM Journal of Research and Development, vol. 57, no. 5, article 4, 13 pages. [Impact factor: 1.889] [Ranking: B]
[pdf] [doi] [bib] [Citations: 248]
Vassilis Kostakos, Hannu Kukka, Jorge Goncalves, Nikolaos Tselios, Timo Ojala. 2013. "Multipurpose public displays: How shortcut menus affect usage", IEEE Computer Graphics and Applications, vol. 33, no. 2, pp. 50-57. [Impact factor: 2.088] [Ranking: B]
[pdf] [doi] [bib] [Citations: 29]
Vassilis Kostakos, Timo Ojala, Tomi Juntunen. 2013. "Traffic in the Smart City: Exploring City-Wide Sensing for Traffic Control Center Augmentation", IEEE Internet Computing, vol. 17, no. 6, pp. 22-29. [Impact factor: 2.341] [Ranking: B]
[pdf] [doi] [bib] [Citations: 89]
Vassilis Kostakos, Timo Ojala. 2013. "Public Displays Invade Urban Spaces", IEEE Pervasive Computing, vol. 12, no. 1, pp. 8-13. [Impact factor: 3.175] [Ranking: A]
[pdf] [doi] [bib] [Citations: 71]
Vassilis Kostakos, Mirco Musolesi. 2013. "Introduction to the special issue on social networks and ubiquitous interactions", International Journal of Human-Computer Studies, vol. 71, no. 9, pp. 859-861. [Impact factor: 3.632] [Ranking: A]
[pdf] [doi] [bib] [Citations: 2]
Vassilis Kostakos, Tiago Camacho, Claudio Mantero. 2013. "Towards proximity-based passenger sensing on public transport buses", Personal and Ubiquitous Computing, vol. 17, no. 8, pp. 1807-1816. [Impact factor: 3.006] [Ranking: B]
[pdf] [doi] [bib] [Citations: 41]
Hannu Kukka, Vassilis Kostakos, Timo Ojala, Johanna Ylipulli, Tiina Suopajarvi, Marko Jurmu, Simo Hosio. 2013. "This is not classified: everyday information seeking and encountering in smart urban spaces", Personal and Ubiquitous Computing, vol. 17, no. 1, pp. 15-27. [Impact factor: 3.006] [Ranking: B]
[pdf] [doi] [bib] [Citations: 55]
Vassilis Kostakos, Tomi Juntunen, Jorge Goncalves, Simo Hosio, Timo Ojala. 2013. "Where Am I? Location Archetype Keyword Extraction from Urban Mobility Patterns", PLoS ONE, vol. 8, no. 5, article e63980, 10 pages. [Impact factor: 3.240]
[pdf] [doi] [bib] [Citations: 16]

2012

Vassilis Kostakos. 2012. "Training users vs. training soldiers: experiences from the battlefield", Communications of the ACM, vol. 55, no. 3, pp. 33-35. [Impact factor: 4.654]
[pdf] [doi] [bib] [Citations: 1]
Timo Ojala, Vassilis Kostakos, Hannu Kukka, Tommi Heikkinen, Tomas Linden, Marko Jurmu, Simo Hosio, Fabio Kruger, Daniele Zanni. 2012. "Multipurpose Interactive Public Displays in the Wild: Three Years Later", Computer, vol. 45, no. 5, pp. 42-49. [Impact factor: 2.351] [Ranking: B]
[pdf] [doi] [bib] [Citations: 235]
Olga Lyra, Evangelos Karapanos, Vassilis Kostakos. 2012. "Measuring social inclusion in primary schools", IEEE Pervasive Computing, vol. 11, no. 3, pp. 43-45. [Impact factor: 3.175] [Ranking: A]
[pdf] [doi] [bib]
Denzil Ferreira, Vassilis Kostakos, Anind K. Dey. 2012. "Lessons Learned from Large-Scale User Studies: Using Android Market as a Source of Data", International Journal of Mobile Human Computer Interaction, vol. 4, no. 3, pp. 28-43. [Impact factor: 1.131]
[pdf] [doi] [bib] [Citations: 45]

2011

Vassilis Kostakos. 2011. "The challenges and opportunities of designing pervasive systems for deep-space colonies", Personal and Ubiquitous Computing, vol. 15, no. 5, pp. 479-486. [Impact factor: 3.006] [Ranking: B]
[pdf] [doi] [bib] [Citations: 2]

2010

Vassilis Kostakos, Eamonn O'Neill, Alan Penn, George Roussos, Dikaios Papadongonas. 2010. "Brief encounters: Sensing, modeling and visualizing urban mobility and copresence networks", ACM Transactions on Computer-Human Interaction, vol. 17, no. 1, article 2, 38 pages. [Impact factor: 2.351] [Ranking: A*]
[pdf] [doi] [bib] [Citations: 87]
Vassilis Kostakos, Panos Kostakos. 2010. "Inferring social networks from physical interactions: a feasibility study", International Journal of Pervasive Computing and Communications, vol. 6, no. 4, pp. 423-431. [Ranking: C]
[pdf] [doi] [bib] [Citations: 4]

2009

Vassilis Kostakos, Tom Nicolai, Eiko Yoneki, Eamonn O'Neill, Holger Kenn, Jon Crowcroft. 2009. "Understanding and measuring the urban pervasive infrastructure", Personal and Ubiquitous Computing, vol. 13, no. 5, pp. 355-364. [Impact factor: 3.006] [Ranking: B]
[pdf] [doi] [bib] [Citations: 64]
George Roussos, Vassilis Kostakos. 2009. "RFID in Pervasive Computing: State-of-the-art and Outlook", Pervasive and Mobile Computing, vol. 5, no. 1, pp. 110-131. [Impact factor: 3.453] [Ranking: B]
[pdf] [doi] [bib] [Citations: 181]
Vassilis Kostakos. 2009. "Temporal graphs", Physica A: Statistical Mechanics and its Applications, vol. 388, no. 6, pp. 1007-1023. [Impact factor: 3.263]
[pdf] [doi] [bib] [Citations: 378]

2007

Vassilis Kostakos, Panos Kostakos. 2007. "Social network analysis: Real world methodological challenges", ESRC Standing Group on Organised Crime Newsletter, vol. 6, no. 1, pp. 7-9.
[pdf] [bib]

2006

Vassilis Kostakos, Eamonn O'Neill, Alan Penn. 2006. "Designing urban pervasive systems", Computer, vol. 39, no. 9, pp. 52-59. [Impact factor: 2.351] [Ranking: B]
[pdf] [doi] [bib] [Citations: 66]
Vassilis Kostakos, Panos Kostakos. 2006. "Criminal group behaviour and operational environments", ESRC Standing Group on Organised Crime Newsletter, vol. 5, no. 2, pp. 6-7.
[pdf] [bib]
Eamonn O'Neill, Manasawee Kaenampornpan, Vassilis Kostakos, Andrew Warr, Dawn Woodgate. 2006. "Can we do without GUIs? Gesture and speech interaction with a patient information system", Personal and Ubiquitous Computing, vol. 10, no. 5, pp. 269-283. [Impact factor: 3.006] [Ranking: B]
[pdf] [doi] [bib] [Citations: 39]

2005

Vassilis Kostakos, Eamonn O'Neill, Linda Little, Elizabeth Sillence. 2005. "The social implications of emerging technologies", Interacting with Computers, vol. 17, no. 5, pp. 475-483. [Impact factor: 1.174] [Ranking: B]
[pdf] [doi] [bib] [Citations: 36]