[video] A beginners guide to Bayesian Cognitive Modelling

Specific Domains Probabilistic programming
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Just in case people here are interested, here is a video of a seminar talk I was invited to give to the Psychology department at the University of Leicester, UK. I go through some examples using Julia and Turing. As well as a simple linear regression example, I give examples of two Bayesian cognitive models:

  1. Delay discounting in a decision making experiment
  2. A Bayesian optimal observer model of a visual attention experiment

Video: A beginners guide to Bayesian Cognitive Modelling - YouTube [45 mins]
GitHub repo: GitHub - drbenvincent/2021-Leicester-seminar: Code for a seminar talk at University of Leicester, UK

PS: If you like this kind of thing, then you can retweet this :slight_smile: https://twitter.com/inferencelab/status/1364962838196977667?s=21

11 Likes
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Hi @drbenvincent, very cool talk!

One question: what is @.? I looked in turing and distributions for macros but didn’t see anything matching. Thanks!

1 Like
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Its a convenience macro that broadcasts every operation to its right, i.e. @. a = b + c * d becomes a .= b .+ c .* d.

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@. is @__dot__ which is searchable in the documentation.
The search for @. or “@.” was not helpful or productive.

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@carstenbauer @devel-chm thanks both! I guessed it was related to the normal . usage but it’s very handy to know for sure and also where to find it!

So, it seems like __dot__ is handled as an exceptional case by the parser here and this is unique case (I cannot find any other dunders in there).