Giles HarperDonnelly

@WiringTheBrain @BenSteventon2 Precisely. And to make things more complicated their solutions to this problem need to be coordinated across the embryo. It’s seems likely that it’s better for everyone to be a little off the mark together than for 95% to get it right but 5% to be stubbornly wrong.

@GilesHD @BenSteventon2 Yes, developing cells have to solve a cognitive problem - what is out in my environment and what should I do about it?

Brilliant to see Marr getting some love in Developmental Biology! I firmly believe that levels of analysis have a really important role to play in our understanding of developmental systems. So much so that I dedicate 2 chapters of my thesis to the topic repository.cam.ac.uk/items/57eb40c3…

The trilogy is complete! My "Advanced Topics" book is officially released today. Buy it on Amazon, or get it for free at probml.github.io/pml-book/book2….

I am delighted to announce the release of “dynamax”, an open source library for dynamic state space models in JAX. It supports inference and learning in HMMs, Linear Gaussian SSMs, as well as non-linear and non-Gaussian SSMs. See github.com/probml/dynamax

I am delighted to announce that the camera-ready version of my new book, "Machine Learning: Advanced Topics", is finally available online for free at probml.github.io/book2 (@mitpress will publish the hard copy in 2023.)

@CambridgeMLG is launching a blog, featuring a first two-part post about what keeps a Bayesian awake at night by Richard E. Turner and me. 🧵 mlg-blog.com

As today, Nov. 20th, is his birthday it's a great opportunity for my favourite math joke: What does the 'B' in Benoit B. Mandelbrot stand for? ... Benoit B. Mandelbrot

One can only hope.

@theosysbio Sorry it's chapter VIII (The Partial Differential Equation of Hamilton-Jacobi).

@theosysbio From the intro of chapter VII of Variational Principles of Mechanics. He even opens the chapter with the quote: "Put off thy shoes from off thy feet, for the place whereon thou standest is holy ground" Exodus III, 5. 🔥🔥🔥

Finally understanding a mathematical concept feels a bit like reaching a mountain top and seeing a vast landscape in front of you: suddenly it all makes sense, you see connections & relationships previously hidden. Fantastic moments.

@jdenavascues @lmgtfy Great teaching opportunity. Very valuable to learn that, particularly when it comes to software, everyone googles everything all the time! It is easy early in your journey to worry that googling is somehow "not the proper way" to find these things out. Quite the opposite!

Is it very bad to send a @lmgtfy link to a MSc candidate that cannot bother look into software documentation? (Not digging deep, really, just format requirements for input files)

I wrote an article about what I’ve been working on for years! Please have a read! @ConversationUK #polarbears theconversation.com/searching-for-…

@anishmadan23 @YugeTen For me chrome doesn't load the equations and complains about trying to load mathjax over http rather than https. Firefox works fine though so maybe give that a try :)

@YugeTen My browser is not able to render the math equations in the blog :( Have you posted this blog on any other platform?

New blog post: How I learned to stop worrying and write ELBO in a billion ways. I talk about a list of interesting approaches including IWAE and DReG that are important to the evolution of ELBO over the past few years. Have fun reading, RT if like! yugeten.github.io/posts/2020/06/…

@nmoris @OatesLab @ELS_CellBiology @ZebrafishRock @Sundar_Ram_07 @AOates1 Seems to work for me. sciencedirect.com/science/articl…

@OatesLab @ELS_CellBiology @ZebrafishRock @Sundar_Ram_07 @AOates1 This sounds really interesting! Unfortunately, the link doesn't seem to be working for me...

📢Latest review from our lab discussing signalling pre-patterns & mechanics underlying boundary formation in #zebrafish somites @ELS_CellBiology @ZebrafishRock shorturl.at/cFQY2

@da40cambs I don't have anything to compare it to, but I find it great!

Anyone use Zotero on a Mac? Any good?

@swairshah @rc_reding @JuliaLanguage Such a shame this isn't more widely advertised! The beginner experience experience is really harmed by to have to discover it by googling "Why is my Julia start up time so slow?".

@rc_reding @JuliaLanguage PackageCompiler.jl to the rescue!

I wish more people would consider using @JuliaLanguage. Its less than 15 lines to recreate this example. Next two tweets..

@robert_stagg @_mvdm The uncertainty surrounding numbers like this is one of many good reasons not to be too hasty when interpreting these daily numbers. It is considerably too early to be trying to determine whether a social-distancing effect started 2 or 2.5 weeks ago.

@_mvdm Imperial study suggested more like 2 weeks; the CMO and Dep CMO have said 3 weeks at various press confs (hence the length of the review periods). We could assume for sake of argument that it’s 2.5 wks and the pre-shutdown social distancing would still have likely had big effect.

An argument, which I have considerable sympathy for: The coronavirus data from this week suggests that the UK did not need to enter a shutdown. I’d be interested to know your thoughts (reasoned, please!) once you’ve read these tweets. Here’s how the argument proceeds. [Thread]

The evidence feeding into the Scientific Advisory Group for Emergencies #SAGE is now live. This is supporting the government response to #COVID19 gov.uk/government/new…

@davisjmcc A Mathematician's Apology is wonderful and surprisingly poignant.