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Breathing life into biomechanical user models

Title data

Ikkala, Aleksi ; Fischer, Florian ; Klar, Markus ; Bachinski, Miroslav ; Fleig, Arthur ; Howes, Andrew ; Hämäläinen, Perttu ; Müller, Jörg ; Murray-Smith, Roderick ; Ouslavirta, Antti:
Breathing life into biomechanical user models.
In: Proceedings of the 35th Annual ACM Symposium on User Interface Software and Technology. - New York : Association for Computing Machinery , 2022 . - 90
ISBN 978-1-4503-9320-1

Abstract in another language

Forward biomechanical simulation in HCI holds great promise as a tool for evaluation, design, and engineering of user interfaces. Although reinforcement learning (RL) has been used to simulate biomechanics in interaction, prior work has relied on unrealistic assumptions about the control problem involved, which limits the plausibility of emerging policies. These assumptions include direct torque actuation as opposed to muscle-based control; direct, privileged access to the external environment, instead of imperfect sensory observations; and lack of interaction with physical input devices. In this paper, we present a new approach for learning muscle-actuated control policies based on perceptual feedback in interaction tasks with physical input devices. This allows modelling of more realistic interaction tasks with cognitively plausible visuomotor control. We show that our simulated user model successfully learns a variety of tasks representing different interaction methods, and that the model exhibits characteristic movement regularities observed in studies of pointing. We provide an open-source implementation which can be extended with further biomechanical models, perception models, and interactive environments.

Further data

Item Type: Article in a book
Refereed: Yes
Institutions of the University: Faculties > Faculty of Mathematics, Physics und Computer Science > Department of Computer Science > Chair Applied Computer Science VIII > Chair Applied Computer Science VIII - Univ.-Prof. Dr. Jörg Müller
Result of work at the UBT: No
DDC Subjects: 000 Computer Science, information, general works
000 Computer Science, information, general works > 050 General serials and their indexes
Date Deposited: 30 Nov 2023 06:10
Last Modified: 30 Nov 2023 06:10