Aki Vehtari

@avehtari
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62 Following
14 Posts
Associate professor in computational Bayesian modeling at Aalto university, BDA3 and ROS co-author, Stan and ArviZ developer
https://users.aalto.fi/~ave/
Web pagehttps://users.aalto.fi/~ave/
Bayesian Data Analysis 3rd edhttps://www.stat.columbia.edu/~gelman/book/
Regression and Other Storieshttps://avehtari.github.io/ROS-Examples/
BDA coursehttps://avehtari.github.io/BDA_course_Aalto/
Hello fediverse, we are the Finnish Center for Artificial Intelligence ๐Ÿง  ๐Ÿค–, studying & developing AI for real people in the real world.
Some of our tooting researchers: @TeemuRoos, @avehtari, @AcerbiLuigi, @SimoSarkka, @HannuToivonen
๐Ÿ“ Read our newsletter: http://eepurl.com/ible99
๐Ÿ—“๏ธ Join AI Day online or on-site at Aalto University, November 16: https://fcai.fi/ai-day-2022
๐Ÿฆ We'll be cross-posting on Mastodon and Twitter
#introduction #finland #machinelearning #research #artificialintelligence
AI News & Events from Finland

An #introduction post! I'm Danielle, a data scientist and generative artist ๐ŸŽจ working in #rstats and #python. I'm a developer advocate at Voltron Data and help out with #ApacheArrow ๐Ÿน

These are me:

- Blog: https://blog.djnavarro.net/
- Art: https://art.djnavarro.net/
- Website: https://djnavarro.net/
- Art-only account: @djnavarro

Oh and so are these:

- Arrow: https://arrow-user2022.netlify.app/
- Art: https://art-from-code.netlify.app/
- R and stats: https://learningstatisticswithr.com/
- ggplot2: https://ggplot2-book.org/

Hi! ๐Ÿ’•

Notes from a data witch

A blog by Danielle Navarro

Notes from a data witch

... without flooding the timelines.

Begin by typing out your first message. Easy-peasy.

Next choose the privacy/visibility setting. If you want to broadcast this thread to the masses, choose the Public option.

Send it out.

Notice your post appear in the timeline(s). Click it, then reply to that post.

Type out the second part.

**Important Bit** Change the privacy/visibility of this post to Unlisted.

Now post your reply.

Repeat for all subsequent parts of your thread.

For anybody considering #migration between instances, I've found the guide at https://codingitwrong.com/2022/10/10/migrating-a-mastodon-account.html quite helpful. It has a few more steps than the Mastodon docs, which appear to be mostly optional, but helped me resolve an issue I had.

MORE #bayesian CONTENT. Finished my tidyverse / brms #rstats translation of *Bayes Rules!* ch. 16 on multilevel models.

They do a *masterful* job of explaining pooling, within/between variation, random offsets, and shrinkage.

READ THIS BOOK, PEOPLE! #statsodon #statTootstics https://bayesf22-notebook.classes.andrewheiss.com/bayes-rules/16-chapter.html

bayesf22 Notebook - Reading notes

Hi everyone ๐Ÿ‘‹๐Ÿฝ #introduction: Iโ€™m an Assistant #Professor of Statistical Sciences + School of the #Environment at the University of #Toronto. #Latina & very #gay ๐ŸŒˆ. Hoping to use this platform to talk #statistics and connect with other #researchers. #rstats #academic #LatinXstem #WomenInSTEM #SharkScience

Things are coming together for #ArviZ's InferenceData (https://github.com/arviz-devs/InferenceObjects.jl) to be a supported output type for #Turing and #JuliaLang's  #Stan interface, similarly to how it is for #PyMC.

For details, see https://github.com/TuringLang/MCMCChains.jl/issues/381 and https://github.com/StanJulia/StanSample.jl/issues/60

#statistics #mcmc_stan #bayesian

GitHub - arviz-devs/InferenceObjects.jl: Storage for results of Bayesian inference

Storage for results of Bayesian inference. Contribute to arviz-devs/InferenceObjects.jl development by creating an account on GitHub.

GitHub
The #bayesian learning party continues with my brms / tidyverse #rstats translation of Bayes Rules chapter 15 introducing hierarchical/multilevel models. Nothing too fancy in this chapterโ€”it does an excellent job comparing pooling/no pooling/partial pooling https://bayesf22-notebook.classes.andrewheiss.com/bayes-rules/15
My translation of the *Statistical Rethinking* videos into brms / tidyverse #rstats continues with video 11 on ordered categories! Fairly straightforward fun stuff with ordinal logistic regression, and now I finally better understand what the heck these cutpoints actually mean https://bayesf22-notebook.classes.andrewheiss.com/rethinking/10-video.html #stats #statsodon #statTootstics #bayesian
bayesf22 Notebook - Video #11 code

Text might be the most neglected part of #dataviz. We talk a lot about how the right chart type and colors can improve visualizations โ€“ but not enough about how to use words well.

So I wrote about that in my latest article: https://blog.datawrapper.de/text-in-data-visualizations/

What to consider when using text in data visualizations

How to make your data visualizations easier to read (and more interesting to look at!) with the right use of text.

Datawrapper Blog