I am quite confused by this slide from a course I found on the internet from UCL on Graphical Models. Here is the slide:

enter image description here

I would like to confirm whether I have correct understanding:

In the following picture, the set of nodes $\mathcal{X,Y,C}$ are:

  • $\mathcal{X}=\{1\}$
  • $\mathcal{Y}=\{2\}$
  • $\mathcal{C}=\{4\}$

I coloured $4$ because it's in the conditioning set. So, is $1$ and $2$ blocked by $4$ and $1$ and $2$ are independent given $4$?

If anyone can give more examples that would help a lot

enter image description here


Your Answer

By clicking “Post Your Answer”, you agree to our terms of service, privacy policy and cookie policy

Browse other questions tagged or ask your own question.