Sebastian Weichwald Profile picture
Why? Causality, Statistics, Machine Learning, Interdisciplinarity @CLeaR_2022 #UAI2021 @ @science_ku @uni_copenhagen formerly @MPI_IS & @ETH_en
May 22, 2019 10 tweets 7 min read
What is a causal model and how is it different from a "common" statistical model?
👇
Thread on a mental picture and intuition how one may think about (a subclass of) causal models and the causal discovery problem.
1/

@bttyeo @eliasbareinboim @KordingLab @EpiEllie @causalinf A "common" statistical model models one joint distribution over variables X = {A, B, …}; a causal model models a set of joint distributions over X, one for each intervention.
Here line segments correspond to the modellable distributions for varying model parameters.
2/ Image
Apr 2, 2019 15 tweets 5 min read
Does the number of boxes loaded _cause_ the risk of a truck rolling over?

In what ways does confounding (or having access only to certain macro-variables) limit causal inference in neuroimaging?

How are these two questions related?

Check out the thread below 👇

1/ Bear with me, in an attempt to strip down the problem and to provide a starting point for a constructive discourse I am deliberately not using neuro lingo to begin with.
I hope the following idealised simplified toy example turns out to be instructive.

2/