# Tagged Questions

The tag has no wiki summary.

204 views

### Having a conjugate prior: Deep property or mathematical accident?

Some distributions have conjugate priors and some do not. Is this distinction just an accident? That is, you do the math, and it works out one way or the other, but it does not really tell you ...
546 views

### Does the beta distribution have a conjugate prior?

I know that the beta distribution is conjugate to the binomial. But what is the conjugate prior of the beta? Thank you.
535 views

### Exponential Distribution - Rate - Bayesian Prior?

I have gone through WinBugs documentation (for example, http://www.mrc-bsu.cam.ac.uk/bugs/thebugsbook/examples/html/Chapter-11-Specialised/Example-11_7_2-leukaemia.html). And also through this book ...
2k views

### Why is the Dirichlet distribution the prior for the multinomial distribution?

In LDA topic model algorithm, I saw this assumption. But I don't know why chose Dirichlet distribution? I don't know if we can use Uniform distribution over Multinational as a pair?
93 views

### A re-formalization of a conjugate prior?

It is quite easy to prove that if $p(\theta)$ is a conjugate prior to some likelihood then the following: $$q(\theta') \propto p(\theta)I(\theta \in A)$$ where $A$ is a subset of the parameter space ...