Cited by 96Explainable Artificial Intelligence (XAI)Data Visualization and AnalyticsVisual and Cognitive Learning Processes

COGAM: Measuring and Moderating Cognitive Load in Machine Learning Model Explanations

Abdul, Ashraf, von der Weth, Christian, Kankanhalli, Mohan, Lim, Brian Y.·2020·Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems

Abstract

Interpretable machine learning models trade -off accuracy for simplicity to make explanations more readable and easier to comprehend. Drawing from cognitive psychology theories in graph comprehension, we formalize readability as visual cognitive chunks to measure and moderate the cognitive load in explanation visualizations. We present Cognitive-GAM (COGAM) to generate explanations with desired cognitive load and accuracy by combining the expressive nonlinear generalized additive models (GAM) with simpler sparse linear models. We calibrated visual cognitive chunks with reading time in a user study, characterized the trade-off between cognitive load and accuracy for four datasets in simulation studies, and evaluated COGAM against baselines with users. We found that COGAM can decrease cognitive load without decreasing accuracy and/or increase accuracy without increasing cognitive load. Our framework and empirical measurement instruments for cognitive load will enable more rigorous assessment of the human interpretability of explainable AI.

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Crossref · 10.1145/3313831.3376615

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Authors
Abdul, A., von der Weth, C., Kankanhalli, M., & Lim, B. Y.
Affiliations
  • National University of Singapore (SG)
  • National University of Singapore, Singapore, Singapore
Venue
Proceedings of the 2020 CHI Conference on Human Factors in Computing Systems
Publisher
ACM
Published
2020-04-21
Pages
1-14
OpenAlex
W3028689275
Cited by
96
References
74
Citations by year
2026: 12 · 2025: 14 · 2024: 19 · 2023: 17 · 2022: 14 · 2021: 18 · 2020: 2
FWCI
4.87
Type
conference paper
Language
en
Open access
closed
Locations
  • CHI Conference on Human Factors in Computing Systems (publishedVersion)
  • National University of Singapore (submittedVersion)
Funders
National Research Foundation Prime Minister's Office Singapore
Topics
  • Physical Sciences › Computer Science › Artificial Intelligence › Explainable Artificial Intelligence (XAI)
  • Physical Sciences › Computer Science › Computer Vision and Pattern Recognition › Data Visualization and Analytics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Visual and Cognitive Learning Processes
Keywords
cognitive load, explainable AI, model explanation, generalized additive models, readability, graph interpretation, explanation visualization, sparse linear models, human interpretability

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