Title
Predicting Mid-Air Interaction Movements and Fatigue Using Deep Reinforcement Learning
Abstract
A common problem of mid-air interaction is excessive arm fatigue, known as the "Gorilla arm" effect. To predict and prevent such problems at a low cost, we investigate user testing of mid-air interaction without real users, utilizing biomechanically simulated AI agents trained using deep Reinforcement Learning (RL). We implement this in a pointing task and four experimental conditions, demonstrating that the simulated fatigue data matches human fatigue data. We also compare two effort models: 1) instantaneous joint torques commonly used in computer animation and robotics, and 2) the recent Three Compartment Controller (3CC-) model from biomechanical literature. 3CC- yields movements that are both more efficient and relaxed, whereas with instantaneous joint torques, the RL agent can easily generate movements that are quickly tiring or only reach the targets slowly and inaccurately. Our work demonstrates that deep RL combined with the 3CC- provides a viable tool for predicting both interaction movements and user experiencein silico, without users.
Year
DOI
Venue
2020
10.1145/3313831.3376701
CHI '20: CHI Conference on Human Factors in Computing Systems Honolulu HI USA April, 2020
DocType
ISBN
Citations 
Conference
978-1-4503-6708-0
2
PageRank 
References 
Authors
0.36
0
6
Name
Order
Citations
PageRank
Noshaba Cheema123.75
Laura A. Frey-Law220.36
Kourosh Naderi3183.45
Jaakko Lehtinen4106342.31
Philipp Slusallek52420231.27
Perttu Hämäläinen650555.57