Arto Thurlin · @joukahainen
1 followers · 58 posts · Server sigmoid.social

Trading the FX volatility risk premium with machine learning and alternative
data

Using news and market data as inputs to a random forest, we get
• outperformance
• a better understanding the model

sciencedirect.com/science/arti

#randomforest #machinelearning #option #fx

Last updated 2 years ago

Felix Schönbrodt · @nicebread
1578 followers · 260 posts · Server scicomm.xyz

Our paper about the comparison of and regression analysis in predicting reoffenses will be published in ""

Guess what? " Does Not Outperform Logistic Regression in the Prediction of Sexual Recidivism"

With Sonja Etzler, @MarRettenberger@twitter.com, @florianpargent

Preprint: psyarxiv.com/z6ky2

#psychology #preprint #ml #randomforest #assessment #sexual #machinelearning

Last updated 2 years ago

Arto Thurlin · @joukahainen
1 followers · 50 posts · Server sigmoid.social
Omid V. Ebrahimi · @OmidVEbrahimi
1235 followers · 80 posts · Server mastodon.social

Interesting new study estimating the of published research in over the past 20 years.

The paper includes *nearly all papers* published in six top psychology over last 2 decades.

pnas.org/doi/10.1073/pnas.2208

The researchers used a model ( & logistic regression ensemble) to estimate the replication likelihood of over 14,000 from 2000-2019 in six subfields of psychology.

#replicability #psychology #journals #machinelearning #randomforest #articles #science #academia #research #fediverse #openaccess

Last updated 2 years ago

Brendan Hayward · @bmjhayward
75 followers · 133 posts · Server fosstodon.org

Beautiful

```
struct RandomForest {
nodes: []Node
num_trees: i32
}

struct Node {
feature: i32
threshold: f64
left: *Node
right: *Node
}
```

#machinelearning #randomforest

Last updated 2 years ago

Why stop at one decision tree when you can have a whole random forest? 🌲 🎄 🌳 😄

On Monday Dec 5, we will learn all about random forests during our R-Ladies bookclub session ▶️ Ch 11 from the book Hands on Machine Learning with R by Bradley Boehmke & Brandon Greenwell

Anyone who's interested can join! Sign up via Meetup 👇
meetup.com/rladies-den-bosch/e

#utrecht #denbosch #randomforest #machinelearning #bookclub #rladies #rstats

Last updated 2 years ago

Dirk Van den Poel · @dirkvandenpoel
61 followers · 14 posts · Server mastodon.online

Today’s offline + online Zoom lecture of my (analytical customer relationship management) class is on using and for cross-sell modeling. Multiclass .

#randomforest #notebook #jupyter #dataanalytics #datascience #orms #machinelearning #classification #pandas #python #acrm

Last updated 2 years ago

Dirk Van den Poel · @dirkvandenpoel
61 followers · 14 posts · Server mastodon.online
Blas M. Benito · @blasbenito
382 followers · 35 posts · Server fosstodon.org

I am quite happy with how the new version of the package spatialRF is coming along.

Many new features are already implemented, like automatic model selection, improved performance scores, and several QOL changes.

Still lots of stuff on the to-do list though: full support for discrete predictors, quantile regression, prediction to raster, improved response curves, support for sf data frames, and much more is coming.

#rstats #ml #randomforest #code

Last updated 2 years ago

Phiala Sarah Goslee · @phiala
86 followers · 44 posts · Server wandering.shop

I'm just gonna say that if r2 went from 0.18 to 0.98 then I probably did something wrong.

#rstats #randomforest

Last updated 2 years ago

Dirk Van den Poel · @dirkvandenpoel
61 followers · 14 posts · Server mastodon.online