Sam Cohen

Mathematician; Christian; beer, beards and silly hats aficionado

[Sam Cohen @SamCMaths]

My latest pseudo-mathematical project....

[Sam Cohen @SamCMaths]

@viditnanda I will make sure my next negative review highlights the work of V Nanda.

[Sam Cohen @SamCMaths]

@viditnanda Sounds like you’ve not been paying enough attention to opportunities for ninja in the modern academic world.

[Sam Cohen @SamCMaths]

Thing that would make me happy in 2025: @RockstarGames announces a Red Dead spinoff set in Australia. With inspiration from the stories of Ned Kelly, Truganini, the man from Snowy River, On our Selection, the Eureka Stockade, … there’s plenty of source material!

[Sam Cohen @SamCMaths]

@viditnanda And the only sum of cubes below some n.

[Sam Cohen @SamCMaths]

@keenanisalive Of course this works until you have an asymmetry which means your chain isn’t reversible… then you have to think a bit more to describe equilibrium…

[Sam Cohen @SamCMaths]

Hey @BBCNews I know NZ is regularly left off maps, but why do you call it part of Asia?

[Sam Cohen @SamCMaths]

@miniapeur Jan Obloj and Johannes Wiesel have some projects in this direction

[Oxford Statistics @OxfordStats]

📝Admissions for our STATML are now open!

⏱️Deadline: 8th Jan '25

STATML is an @EPSRC funded CDT in Statistics & Machine Learning. Studentships are fully funded for a 4-year PhD/DPhil research programme.

🔗For more info, visit: https://t.co/qxuMeq84re

[Sam Cohen @SamCMaths]

@roydanroy I’m unsurprised. My general take is that these methods are only worth it for high dimensional equations, where there are few classical competitors.

[Sam Cohen @SamCMaths]

@keenanisalive This is important as there's no guarantee that the transition matrix is diagonalizable (a usual assumption for power iteration). That's where the slightly weird Hilbert metric allows you to say things very precisely, even without that assumption!

[Sam Cohen @SamCMaths]

@keenanisalive To be careful, you need to say what metric it's a contraction in - https://t.co/QWbpNtvHd0

[Sam Cohen @SamCMaths]

@mraginsky @SimonsInstitute Very nice. Slight typo on p20 (C_P vs C_T).
If I was to argue, I'd point out that in practice we often use falsifiable models (cf Box's adage) so something beyond simple falsifiability is needed as a criterion.

[Sam Cohen @SamCMaths]

@NewCollegeLib @NewCollegeOx Wearing multiple crowns, and writing your name on your leg, also seem surprising fashion choices.

[Sam Cohen @SamCMaths]

@sp_monte_carlo Then ignore my earlier comment - I was thinking of Amari-type geodesics...

[Sam Cohen @SamCMaths]

@sp_monte_carlo Feels like it would be true in exponential families - what geodesic are you thinking of though?

[Sam Cohen @SamCMaths]

@ChristophHeilig @ClairedeLuned @eerdmansbooks A full Bayesian analysis would also include an assessment of the reliability of SBF as a literary critic…

[Sam Cohen @SamCMaths]

@ChristophHeilig @eerdmansbooks Can I infer it's principally for those of us who do like mathematics?

[Joseph Conlon @JosephPConlon]

5-year positions for early career researchers (here = PhD viva after 1st Aug 2022) in Theoretical Physics (or Mathematics, or Archaeology, Classics, Modern Languages, Politics -- 1 for each subject).

Deadline 6th September

https://t.co/Cj3cDPEgpd

[Gholamali Aminian @gh_aminian]

Tomorrow, Thurs 25, 11:30 a.m. CEST — 1 p.m. CEST, presenting our work at #ICML2024,
"Generalization Error of Graph Neural Networks in the Mean-field Regime"
Location: Hall C 4-9, Poster 508,

[Sam Cohen @SamCMaths]

@sp_monte_carlo Fair point

[Sam Cohen @SamCMaths]

@sp_monte_carlo The law X=0 (identically) also works, no?