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Random forest regression models in ecology: Accounting for messy biological data and producing predictions with uncertainty
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2024
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Source: Fisheries Research, 280, 107161
[PDF-6.78 MB]
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Journal Title:Fisheries Research
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Description:Machine learning methods such as random forest regression models are useful tools in ecology when applied correctly, although features inherent to ecological data sets can lead to over-fitting or uncertain predictions. Here, a set of methods are outlined to account for temporal autocorrelation, and sparse, short, or missing data for random forest predictions. Methods are also provided for estimating prediction uncertainty due to the combination of inherent randomness in the random forest algorithm and sparse input data. This suite of methods was used to generate pre-season predictions of total catches with uncertainty for California market squid (Doryteuthis opalescens), the most valuable fishery in California (by ex-vessel value). The methodology presented in this analysis is not only robust, incorporating key cross-validation and hyperparameter tuning techniques from across disciplines, but is also flexible, making it applicable to various ecological and fisheries datasets beyond market squid.
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Source:Fisheries Research, 280, 107161
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DOI:
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ISSN:0165-7836
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Rights Information:CC0 Public Domain
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Compliance:Submitted
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