Dr Duncan Robertson Profile picture
Mar 15, 2020 7 tweets 4 min read Read on X
I need your help. I want to know from modellers in all areas what we need from a (any) Government #COVIDー19 model (which will predict numbers and timing of infections and will drive national policy). Please share and we will croudsource a requirements list
I'd like to crowd source our requirements for the model (parameters, validation, assumptions, code) - and I'd like to help from all #modelling ( #simulation / #economic / #policy / #epidemiological / #behavioral ) experts in putting together our requirements. I'll start.
I want to know what objective function is being maximized. @MattHancock
said on @BBCPolitics
#marr bbc.in/2QiyxdY this morning 'Herd immunity is not our policy, it is not our goal. Our goal is to protect life...'. My first question would be _whose_ life:
In the @cabinetofficeuk
#sage gov.uk/government/gro… model, what is the difference in weighting (if any) between a 90-year-old with 'underlying health conditions' and a 30-year-old parent?
Please retweet this thread widely (and add @[name] people ideally) as I'd like to get as many expert views in any field - they will hopefully self-organize (by likes and retweets) - and we can then look at who is authoring the tweet to ensure they are an expert in their own area
If this takes off, I will rank the croud-sourced requirements and let everyone know.
Please just reply to this tweet with your requirement, and Twitter will do the rest by liking / retweeting your request.

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More from @Dr_D_Robertson

Jul 18
The UK Covid Public Inquiry has published its first Report, on Resilience and Preparedness. It is the most urgent report, as we are still ill-prepared for the next pandemic.

🧵
This is the first of many reports, each reviewing a specific area, including healthcare systems; test, trace, and isolate; and the economic response to the pandemic.

The Module 1 Report sets out nine significant flaws from the Covid-19 pandemic: Image
The Report suggests 10 recommendations: Image
Read 11 tweets
Jun 9, 2023
Data thread from today's @IndependentSage briefing including a discussion on sick pay, the topic of today's discussion. 🧵 Image
Cases and tests. Relatively low.
Caveat that the ONS Covid infection survey has been paused ImageImageImageImage
Hospital admissions. Trend not upward.
Caveat that testing has changed in hospital. ImageImageImageImage
Read 14 tweets
Apr 21, 2023
Covid data presentation for the @IndependentSage briefing on 21 April 2023 🧵 Image
Testing has changed from 1 April 2023, so it is difficult to compare before and after this date.
gov.uk/government/new…
The ONS survey has been 'paused', so we can look at the (less recent, less representative) data on PCR positivity

coronavirus.data.gov.uk/details/testin… ImageImage
Read 11 tweets
Apr 20, 2023
Alright. Another maths thread. And why it's non-trivial to ask exam questions.
🧵
OK. So the 'exam question' is:

"Inflation is currently 10%. If inflation halves, how much will a £1 pint of milk cost".

Sounds easy. It's not. It's ambiguous. It's not a good question. Unless it's designed to be a bad question. In which case it's a good question.
1. It talks about 'inflation'. But *what* inflation? At the moment, we have overall inflation at roughly 10% but inflation of food at roughly 20%. So is the overall inflation rate the same as the inflation rate for milk? It's not clear. Bad question.
Read 9 tweets
Mar 24, 2023
Data thread from today's @IndependentSage briefing. 🧵
First, the @ONS Covid Infection Survey is being paused, and @CovidGenomicsUK is being retired. This will have implications for data reliability and availability going forward.
Read 17 tweets
Mar 20, 2023
OK, I'm going to write a response to this maths problem, published in @DailyMailUK, that has caused a lot of comment, some thinking the answer is 1 and some thinking the answer is 9.

A thread. 🧵

dailymail.co.uk/news/article-1…
So, what answer is correct? Is it 1 or is it 9?

Many of us would go straight to the answer 1. That's because we know (or our children know, and have taught us), that there is a 'rule' for how you deal with the order of doing the calculation - do you do + first or ÷, for example?
Enter BIDMAS (or BODMAS).

"It stands for Brackets, Indices [or Order], Division, Multiplication, Addition and Subtraction."

That's the conventional order. Forget about indices [or order] for now - that's not important for this one.
bbc.co.uk/bitesize/topic…
Read 12 tweets

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