## Design is my passion: sparse matrices part four

Just some harmeless notes. Like the ones Judy Dench took in that movie.

## Sparse matrices part 3: Failing at JAX

_Takes a long drag on cigarette._ JAX? Where was he when I had my cancer?

## An invitation to a sparse Cholesky factorisation

Come for the details, stay for the shitty Python, leave with disappointment. Not unlike the experience of dating me.

## The linear algebra of linear mixed effects models and their generalisations

Hubris. Just hubris. But before the fall comes the statement of purpose. This is that statement.

## Barry Gibb came fourth in a Barry Gibb look alike contest (Repost)

A repost from Andrew's blog about comparing computational methods for performing a task. (Lightly edited.) Original posted 20 October, 2017.

## Why won't you cheat with me? (Repost)

A repost from Andrew's blog about how design information infects multivariate priors.
(Lightly edited. Well, a bit more than lightly because the last version didn't
fully make sense. But whatever. Blogs, eh.) Original posted 5 November, 2017.

## The king must die (repost)

A repost (with edits, revisions, and footnotes) from Andrew's blog about how much I hate the Bayesian Lasso. Originally published 2nd November, 2017.

## Getting into the subspace; or what happens when you approximate a Gaussian process

Fuck man, I don't know about this one. A lot of stuff happens. At some point there's a lot of PDEs. There are proofs. Back away.

## Yes but what is a Gaussian process? or, Once, twice, three times a definition; or A descent into madness

Gaussian processes. As narrated by an increasingly deranged man during a day of torrential rain.

## Priors: Fire With Fire (Track 3)

Objective priors? In finite dimensions? A confidence trick? Yes.

## Priors: Whole New Way (Track 2)

Conjugate Priors? The crystal deoderant of Bayesian statistics

## $(n-1)$-sane in the membrane

Windmills? Tilted. Topic? Boring. (n-1)? No.

## Priors: Night work (Track 1)

Priors? Defined. Questions? Outlined. Purpose? Declared.