Dr. I. (Iulia) Lefter
Dr. I. (Iulia) Lefter
Research interests
Iulia Lefter is Associate Professor at Delft University of Technology. She has a background in affective computing, a field of AI looking into how machines can perceive and respond to human emotions and affect-related behaviours. Her research focuses on designing and developing Affect-Sensitive Systems: systems that are aware of and adapt to human affect, in order to better support them in achieving their goals. Application domains of interest include mental, social and physical well-being, human-media interaction, education, enhancing human-human interaction or human performance in specific tasks such as negotiation, and serious games.
In her work, Iulia is devising models that automatically sense affective states of people and other behaviours of interest depending on an application. She does that by analysing data from various cues, as for example verbal and non-vebal behaviour and bio-signals, and investigates how information from these signals can be best intepreted together in a meaningful way by multimodal fusion. Further, she explores design opportunities together with relevant stakeholders, studying how to ensures a meaningful interaction between the user and the system. This means that the system supports users in reaching their goals, it is useful and acceptable to them.
Background
Iulia Lefter is with the Multi-Actors Systems department at the faculty of Technology, Policy and Management (TPM) of TU Delft. Before joining TPM Iulia was a postdoctoral researcher (TUDelft, EEMCS), working on an interdisciplinary project to support psychiatric patients manage their aggressive tendencies using VR therapy, and on a European project aiming to help people who are physically apart feel more connected. Her PhD research (TUDelft, TNO, NLDA) focused on multimodal sensor fusion to better perceive human behaviour and affective states.
Publications
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2024
Buffer scheduling for improving on-time performance and connectivity with a multi-objective simulation–optimization model
A proof of concept for the airline industry
Isabelle M. van Schilt / Jonna van Kalker / Iulia Lefter / Jan H. Kwakkel / Alexander Verbraeck -
2024
Multimodal interaction technologies for mental well-being
Editorial
Iulia Lefter / Laurens Rook / Theodora Chaspari -
2024
The validity of simplifying gaming simulations
M. A. van Haaften / I. Lefter / O. van Kooten / F. M.T. Brazier
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2023
Affective Computing for Mental Wellbeing
Challenges, Opportunities, and Promising Synergies
I. Lefter / David D. Luxton / Alice Baird / Theodora Chaspari / Zakia Hammal / Marwa Mahmoud / Albert Ali Salah -
2023
On Head Motion for Recognizing Aggression and Negative Affect during Speaking and Listening
Siska Fitrianie / Iulia Lefter
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