Vassilis Kostakos

Team Dynamics in Hospital Workflows: An Exploratory Study of a Smartphone Task Manager

Danula Hettiachchi, Lachie Hayes, Jorge Goncalves, Vassilis Kostakos

Journal article  |  2021  |  JMIR MEDICAL INFORMATICS

BACKGROUND: Although convenient and reliable modern messaging apps like WhatsApp enable efficient communication among hospital sta..

Emergent Interaction: Complexity, Dynamics, and Enaction in HCI

D Bennett, A Dix, P Eslambolchilar, F Feng, T Froese, V Kostakos, S Lerique, N Van Berkel

Conference Proceedings  |  2021  |  Conference on Human Factors in Computing Systems - Proceedings

We propose a workshop on methods and theories for dealing with complex dynamical systems, and their application in HCI. Such metho..

Developing the Proactive Speaker Prototype Based on Google Home

J Wei, T Dingler, V Kostakos

Conference Proceedings  |  2021  |  Conference on Human Factors in Computing Systems - Proceedings

Smart speakers and conversational interfaces increasingly make it into consumer's homes. Listening to users' commands assigns them..

User trust in assisted decision-making using miniaturized near-infrared spectroscopy

W Jiang, Z Sarsenbayeva

Conference Proceedings  |  2021  |  Conference on Human Factors in Computing Systems - Proceedings

We investigate the use of a miniaturized Near-Infrared Spectroscopy (NIRS) device in an assisted decision-making task.We consider ..

Architecting Analytics Across Multiple E-Learning Systems to Enhance Learning Design

Katerina Mangaroska, Boban Vesin, Vassilis Kostakos, Peter Brusilovsky, Michail N Giannakos

Journal article  |  2021  |  IEEE TRANSACTIONS ON LEARNING TECHNOLOGIES

With the wide expansion of distributed learning environments the way we learn became more diverse than ever. This poses an opportu..

Passive Health Monitoring Using Large Scale Mobility Data

Y Zhang, F Xu, T Li, V Kostakos, P Hui, Y Li

Journal article  |  2021  |  Proceedings of the ACM on Interactive, Mobile, Wearable and Ubiquitous Technologies

In this paper, we investigate the feasibility of using mobility patterns and demographic data to predict hospital visits. We colle..

Semantics-Aware Hidden Markov Model for Human Mobility

Hongzhi Shi, Yong Li, Hancheng Cao, Xiangxin Zhou, Chao Zhang, Vassilis Kostakos

Journal article  |  2021  |  IEEE TRANSACTIONS ON KNOWLEDGE AND DATA ENGINEERING

Understanding human mobility benefits numerous applications such as urban planning, traffic control, and city management. Previous..

Information flow and cognition affect each other: Evidence from digital learning

Kshitij Sharma, Katerina Mangaroska, Niels van Berkel, Michail Giannakos, Vassilis Kostakos

Journal article  |  2021  |  INTERNATIONAL JOURNAL OF HUMAN-COMPUTER STUDIES

In the context of learning systems, identifying causal relationships among information presented to the user, their behavior and c..

Understanding usage style transformation during long-term smartwatch use

Aku Visuri, Niels van Berkel, Jorge Goncalves, Reza Rawassizadeh, Denzil Ferreira, Vassilis Kostakos

Journal article  |  2021  |  PERSONAL AND UBIQUITOUS COMPUTING

Despite large investments in smartwatch development, the market growth remains smaller than forecasted. The purpose of smartwatch ..

Recommendations for Conducting Longitudinal Experience Sampling Studies

Niels van Berkel, Vassilis Kostakos

Book Chapter  |  2021