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Soccer goalkeeper expertise identification based on eye movements
Benedikt W Hosp1,2, Florian Schultz2, Oliver Höner2
1Human-Computer Interaction, University of Tübingen, Tübingen, Germany.
Plos One
|May 19, 2021
Summary
Soccer goalkeeper expertise can be accurately classified using eye movement analysis. Machine learning techniques applied to gaze behavior in virtual reality scenes reveal key perceptual skills for decision-making.
Area of Science:
- Sports Science
- Cognitive Psychology
- Human-Computer Interaction
Background:
- Perceptual skills are crucial for decision-making in soccer.
- Assessing expertise in athletes requires controlled and realistic environments.
- Virtual reality offers a novel platform for expertise assessment.
Purpose of the Study:
- To evaluate the effectiveness of eye tracking and machine learning in classifying soccer goalkeeper expertise.
- To identify informative features in gaze behavior for expertise differentiation.
- To explore the potential of these methods for perceptual-cognitive diagnosis and training.
Main Methods:
- Omnidirectional in-field soccer scenes were presented via virtual reality.
- Gaze behavior data was collected from elite youth, regional league, and novice goalkeepers.
- Machine learning algorithms were employed to classify player expertise based on eye movement patterns.
Main Results:
- Eye movements provide highly informative features for expertise assessment.
- A classification accuracy of 78.2% was achieved in differentiating between three expertise levels.
- The study highlights the link between gaze behavior and perceptual-cognitive abilities.
Conclusions:
- Eye tracking combined with machine learning is a viable method for assessing soccer goalkeeper expertise.
- This approach can inform the development of targeted training systems and diagnostic tools.
- Further research can refine these techniques for broader application in sports science.

