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phkwacker.bsky.social
Senior Lecturer in Statistics, University of Canterbury (NZ). he/him Bayesian stats, Applied Math, filtering & sampling pls send me awesome vegan waffle recipes!
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Posts 16 Comments 34

Ominous. (Seen in Sydney)

submitted 2 hours ago • 0 comments

A friend included this anti-acknowledgement section on her PhD thesis. She also added the proposition: “Systematic bullying and undermining of girls and women in STEM starts early on and is the reason why they do not stay in science and related fields.” Absurd we still need to go through this 🧪👩‍🔬

submitted 6 days ago • 121 comments

Trying to be more mindful of violent language that I inadvertently use (and reduce it). In math we often write "with abuse of notation". I am on the fence about whether that's still an appropriate way to phrase this (and leaning towards "no"). #mathsky, what are your thoughts? Any alternatives?

submitted 7 days ago • 4 comments

@chadtopaz.bsky.social is going to talk about "Counting on Justice: Data, Race, and the Criminal Legal System" in the 1W-MINDS online seminar on 6 March! sites.google.com/view/minds-s...

submitted 8 days ago • 0 comments

Same energy

submitted 17 days ago • 0 comments

So much for free speech. Let's make this cartoon by @mluckovich.bsky.social go viral. I'm married to @tealcartoons.bsky.social so I might be biased, but cartoons have long played a vital role in shaping political debate - both past and present. This type of censorship is deeply troubling.

submitted 24 days ago • 27 comments

I (think I) finally figured out a Venn diagram for all these pesky set systems: sigma algebra, lambda-system, algebra, monotone class, pi-system!

submitted 35 days ago • 0 comments

Music is a great example for an affine space: There is no 0 (at least not on a piano), the points are the notes, and intervals are the translations. And it indeed makes no sense to add notes to get a new note (this would be a chord instead). But you can add a note and an interval to get a new note!

submitted 45 days ago • 1 comment

Don't look back, you'll trip over Michael Caine!

submitted 75 days ago • 0 comments

I can't get over how these cats are drawn. Pure nightmare fuel

submitted 85 days ago • 1 comment

RNZ reporting on the joint NZMS/AustMS/AMS meeting in Auckland: www.rnz.co.nz/news/nationa...

submitted 89 days ago • 1 comment

Who's going to be at the NZMS, AustMS and AMS meeting next week?

submitted 98 days ago • 0 comments

The NZ government just announced they won't be funding any humanities or social science research projects through the Marsden Fund (which is NZ's only pot of money for blue-sky research). Way to show they don't care about science or academia!

submitted 99 days ago • 0 comments

Look at this neat visualisation of the bias-variance trade-off in statistical learning I made: We look at a fixed dataset (black dots) and do 1000 independent "constant" regressions of type f(x) = b_0 using random subsamples of the data. Red dots are predictions for a fixed point (blue cross)

submitted 115 days ago • 1 comment

I really love it when students feel comfortable enough to tell me in person which things they did *not* like in my course.

submitted 121 days ago • 0 comments

Nice puzzle: Make the number 24 by using 1, 3, 4, 6 exactly once, and optional any of +, -, *, / and brackets. For example 4*6 does give 24 but is not allowed because you didn't use 1 and 3.

submitted 121 days ago • 0 comments