Article ID: CBB078857465

AIC and the challenge of complexity: A case study from ecology (2016)

unapi

Philosophers and scientists alike have suggested Akaike's Information Criterion (AIC), and other similar model selection methods, show predictive accuracy justifies a preference for simplicity in model selection. This epistemic justification of simplicity is limited by an assumption of AIC which requires that the same probability distribution must generate the data used to fit the model and the data about which predictions are made. This limitation has been previously noted but appears to often go unnoticed by philosophers and scientists and has not been analyzed in relation to complexity. If predictions are about future observations, we argue that this assumption is unlikely to hold for models of complex phenomena. That in turn creates a practical limitation for simplicity's AIC-based justification because scientists modeling such phenomena are often interested in predicting the future. We support our argument with an ecological case study concerning the reintroduction of wolves into Yellowstone National Park, U.S.A. We suggest that AIC might still lend epistemic support for simplicity by leading to better explanations of complex phenomena.

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Authors & Contributors
Nersessian, Nancy J.
Alexander Artikis
Nikos Katzouris
Boem, Federico
Ralf Klinkenberg
Eli I. Lichtenstein
Journals
Studies in History and Philosophy of Science
British Journal for the Philosophy of Science
Studies in History and Philosophy of Science Part C: Studies in History and Philosophy of Biological and Biomedical Sciences
Synthese
Science and Education
Philosophy of Science
Publishers
University of Western Ontario (Canada)
Springer
Oxford University Press
Mimesis
Kluwer Academic
Concepts
Philosophy of science
Models and modeling in science
Explanation; hypotheses; theories
Data analysis
Forecasting; prediction
Case studies
People
Rashevsky, Nicolas
Peirce, Charles Sanders
Herschel, John Frederick William
Galton, Francis
Time Periods
21st century
20th century
20th century, late
19th century
16th century
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