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Maximilian Pichler

@maximilianpichler.bsky.social

#Ecology #Maschinelearnig #rstats

444 Followers  |  190 Following  |  4 Posts  |  Joined: 24.10.2023  |  1.4669

Latest posts by maximilianpichler.bsky.social on Bluesky

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Is there a robust effect of mainland mutualism rates on species richness of oceanic islands? In island biogeography, it is widely accepted that species richness on island depends on the area and isolation of the island as well as the species pool on the mainland. Delavaux et al. (2024) sugges...

In Nature, Delavaux et al., 2024 suggest that species richness on oceanic islands is reduced by mutualism rates on the mainland. In arxiv.org/abs/2411.15105, @maximilianpichler.bsky.social and I had another look at this question and conclude that this effect is likely a statistical artefact.

25.11.2024 08:04 โ€” ๐Ÿ‘ 27    ๐Ÿ” 16    ๐Ÿ’ฌ 2    ๐Ÿ“Œ 1

go.bsky.app/NiaWN5i

I'm happy to receive suggestions for this.

10.11.2024 19:56 โ€” ๐Ÿ‘ 93    ๐Ÿ” 56    ๐Ÿ’ฌ 51    ๐Ÿ“Œ 4

For more details and explanations on how to train and interpret DNNs, see our extensive documentation (including #SDM and #MSDM examples) that also covers advanced topics such as custom loss functions and residual checks (under articles on citoverse.github.io/cito/)!

11.04.2024 11:50 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 0    ๐Ÿ“Œ 0
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cito can now train DNNs for count data using Poisson or negative binomial distributions. In addition, deep joint species distribution models (#jsdm #sdm) based on the multivariate probit model can be fitted:

11.04.2024 11:50 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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An important new feature is hyperparameter tuning under cross-validation, which helps to train the #DNN. Hyperparameter tuning can be easily done by passing a "tune(...)" to the hyperparameters (cito also automatically returns the model with the best hyperparameters):

11.04.2024 11:50 โ€” ๐Ÿ‘ 0    ๐Ÿ” 0    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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cito v1.1 #rstats package for deep neural networks (#DL #DNN) (with formula syntax) is now available on #CRAN. New features include likelihoods such as the negative binomial distribution and easy hyperparameter tuning: cran.r-project.org/web/packages...

11.04.2024 11:49 โ€” ๐Ÿ‘ 4    ๐Ÿ” 2    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0
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Come work with us - I am looking to fill a 3-yr position for a statistical postdoc / scientific programmer to continue the development of the DHARMa #Rstats #CRAN package for #glmm residual diagnostics. Full job advertisement is here uni-regensburg.de/assets/biolo...

24.11.2023 12:01 โ€” ๐Ÿ‘ 10    ๐Ÿ” 3    ๐Ÿ’ฌ 1    ๐Ÿ“Œ 0

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