Matt McDonnell
@drmattmcd.bsky.social
Geek Code: GS/E d s: a+ C(++++) U W++ N+ w M PS+ PE Y+ X+ !tv b+++ DI+ D e++++ r++ y?
Data Scientist / Physicist / Quant / Sci-Fi fan
Cambridge UK
Data Scientist / Physicist / Quant / Sci-Fi fan
Cambridge UK
I may be missing something but isn't the fraud to purchase of high value fungible items just the first step in the money laundering process to funnel into the layer above the smishers?
Based on Rinsed by Geoff White and Lying for Money by @dsquareddigest.bsky.social www.bbc.co.uk/news/article...
Based on Rinsed by Geoff White and Lying for Money by @dsquareddigest.bsky.social www.bbc.co.uk/news/article...
Sim farms to Gucci shoes: How smishing scammers fund their lavish lifestyles
The tactics and spoils of smishing - scam texts that trick people into disclosing data - are revealed.
www.bbc.co.uk
November 29, 2025 at 3:59 PM
I may be missing something but isn't the fraud to purchase of high value fungible items just the first step in the money laundering process to funnel into the layer above the smishers?
Based on Rinsed by Geoff White and Lying for Money by @dsquareddigest.bsky.social www.bbc.co.uk/news/article...
Based on Rinsed by Geoff White and Lying for Money by @dsquareddigest.bsky.social www.bbc.co.uk/news/article...
x-post of some thoughts on how to use convolutions to model user growth www.linkedin.com/posts/drmatt...
I realised recently that you can use the convolution of the new user acquisition rate and a survival function to give the total daily users and other properties such as mean user age.
This is… | Ma...
I realised recently that you can use the convolution of the new user acquisition rate and a survival function to give the total daily users and other properties such as mean user age.
This is comin...
www.linkedin.com
November 16, 2025 at 9:50 AM
x-post of some thoughts on how to use convolutions to model user growth www.linkedin.com/posts/drmatt...
I've mainly been playing with survival analysis this morning lifelines.readthedocs.io/en/latest/in...
Pretty sure the number of users you have after time t can be phrased as the convolution of the survival function and the user acquisition rate. Now to explain Laplace transforms to marketing dept
Pretty sure the number of users you have after time t can be phrased as the convolution of the survival function and the user acquisition rate. Now to explain Laplace transforms to marketing dept
lifelines — lifelines 0.30.0 documentation
lifelines.readthedocs.io
November 10, 2025 at 2:04 PM
I've mainly been playing with survival analysis this morning lifelines.readthedocs.io/en/latest/in...
Pretty sure the number of users you have after time t can be phrased as the convolution of the survival function and the user acquisition rate. Now to explain Laplace transforms to marketing dept
Pretty sure the number of users you have after time t can be phrased as the convolution of the survival function and the user acquisition rate. Now to explain Laplace transforms to marketing dept
Well done the OSA for saving me from the dangers of _checks notes_ python data modelling libraries header icons (left). Briefly at least (right via VPN)
October 10, 2025 at 7:32 AM
Well done the OSA for saving me from the dangers of _checks notes_ python data modelling libraries header icons (left). Briefly at least (right via VPN)
Reposted by Matt McDonnell
in which, I continue to plead for systems thinking in planning, reprising last night's bluesky rant, so people who read that can be excused. backofmind.substack.com/p/canaries-a...
canaries and islands
the indicator species in the system
backofmind.substack.com
October 8, 2025 at 2:06 PM
in which, I continue to plead for systems thinking in planning, reprising last night's bluesky rant, so people who read that can be excused. backofmind.substack.com/p/canaries-a...
I'm really interested in Bayesian modelling and causal inference for uncovering the underlying mechanisms and performance of a system, so really enjoyied this episode of the Learning Bayes podcast with Sam Witty on Causal Probabilistic Modelling in ChiRho learnbayesstats.com/episode/141-...
Learning Bayesian Statistics – Laplace to be for new & veteran Bayesians alike!
Laplace to be for new & veteran Bayesians alike!
learnbayesstats.com
October 8, 2025 at 11:03 AM
I'm really interested in Bayesian modelling and causal inference for uncovering the underlying mechanisms and performance of a system, so really enjoyied this episode of the Learning Bayes podcast with Sam Witty on Causal Probabilistic Modelling in ChiRho learnbayesstats.com/episode/141-...
Reposted by Matt McDonnell
It's up! I try to liven up one of the most tedious subjects imaginable by using it as a metaphor to talk about risk management regulation
www.ft.com/content/ce26...
www.ft.com/content/ce26...
The grimdark future of credit risk models
It’s a model and it’s looking good; you want regulatory approval, that’s understood
www.ft.com
September 24, 2025 at 8:30 AM
It's up! I try to liven up one of the most tedious subjects imaginable by using it as a metaphor to talk about risk management regulation
www.ft.com/content/ce26...
www.ft.com/content/ce26...
Reposted by Matt McDonnell
An actual quote from the Secretary of State for Business and Trade
Too often people go to university to ‘explore research and knowledge’
Look forward to Wes S saying 'too often people go to hospital to have operations' or Heidi Alexander saying 'too often people go to the station to catch a train'
Too often people go to university to ‘explore research and knowledge’
Look forward to Wes S saying 'too often people go to hospital to have operations' or Heidi Alexander saying 'too often people go to the station to catch a train'
September 19, 2025 at 10:25 AM
An actual quote from the Secretary of State for Business and Trade
Too often people go to university to ‘explore research and knowledge’
Look forward to Wes S saying 'too often people go to hospital to have operations' or Heidi Alexander saying 'too often people go to the station to catch a train'
Too often people go to university to ‘explore research and knowledge’
Look forward to Wes S saying 'too often people go to hospital to have operations' or Heidi Alexander saying 'too often people go to the station to catch a train'
Reposted by Matt McDonnell
haven't got any work done for an hour because I can't stop chuckling at my own intro: "Risk management is a lot like Warhammer 40K. Partly because it’s a nightmarish dystopia dominated by mutant cyborgs, but mainly because in order to play, you have to have a lot of expensive models"
September 19, 2025 at 12:51 PM
haven't got any work done for an hour because I can't stop chuckling at my own intro: "Risk management is a lot like Warhammer 40K. Partly because it’s a nightmarish dystopia dominated by mutant cyborgs, but mainly because in order to play, you have to have a lot of expensive models"
Reposted by Matt McDonnell
Is category theory being co-opted, its revolutionary potential subverted by the status quo? This essay gets some things right and some wrong. I should write my own article about this.
estebanandthecollective.substack.com/p/we-are-get...
estebanandthecollective.substack.com/p/we-are-get...
Category Theory is Being Co-opted
How Our World Shapes the Meaning of Mathematics While Mathematics Has the Potential to Reshape our World
estebanandthecollective.substack.com
September 8, 2025 at 4:19 PM
Is category theory being co-opted, its revolutionary potential subverted by the status quo? This essay gets some things right and some wrong. I should write my own article about this.
estebanandthecollective.substack.com/p/we-are-get...
estebanandthecollective.substack.com/p/we-are-get...
Reposted by Matt McDonnell
this came to me in a dream
August 22, 2025 at 5:31 AM
this came to me in a dream
Reposted by Matt McDonnell
Sometimes you want a book that's just "One and done", and we've got you covered!
From award-winners and nominees, to contemporary classics and future stars, there's a Solaris standalone for every reader of SciFi, Fantasy, Horror and Speculative Fiction!
From award-winners and nominees, to contemporary classics and future stars, there's a Solaris standalone for every reader of SciFi, Fantasy, Horror and Speculative Fiction!
August 19, 2025 at 4:53 PM
Sometimes you want a book that's just "One and done", and we've got you covered!
From award-winners and nominees, to contemporary classics and future stars, there's a Solaris standalone for every reader of SciFi, Fantasy, Horror and Speculative Fiction!
From award-winners and nominees, to contemporary classics and future stars, there's a Solaris standalone for every reader of SciFi, Fantasy, Horror and Speculative Fiction!
Reposted by Matt McDonnell
Oh so it does have phd level intelligence
Google Gemini doesn’t appear to be doing too well:
‘"I am a disgrace to this planet. I am a disgrace to this universe. I am a disgrace to all universes . . . I am a disgrace to all possible and impossible universes and all that is not a universe," the bot continued.’
‘"I am a disgrace to this planet. I am a disgrace to this universe. I am a disgrace to all universes . . . I am a disgrace to all possible and impossible universes and all that is not a universe," the bot continued.’
Google says it's working on a fix for Gemini's self-loathing 'I am a failure' comments
Google Gemini users said the bot is sharing self-loathing messages while attempting to solve tasks, including "I am a disgrace to this universe."
www.businessinsider.com
August 8, 2025 at 8:42 AM
Oh so it does have phd level intelligence
Reposted by Matt McDonnell
BATS FOR THE BAT GOD
Bat find stops march of Warhammer development
A tiny visitor holds up work at the company famous for making fantasy wargaming miniatures.
www.bbc.co.uk
July 31, 2025 at 11:36 AM
BATS FOR THE BAT GOD
Reposted by Matt McDonnell
If it's the Fisherman from John Langan's novel that would make sense
i love the image that the uk has only one fisherman left and all the brexit shenanigans and other policy changes were just for him
Fascinated by how inept the Tory party's 'we are celebrating five years of Brexit' is. Fronted by their most unpopular frontbencher. Suggests the EU-UK security pact is bad. Has a typo in the press release.
February 1, 2025 at 6:05 PM
If it's the Fisherman from John Langan's novel that would make sense
Reposted by Matt McDonnell
Interested in machine learning in science?
Timo and I recently published a book, and even if you are not a scientist, you'll find useful overviews of topics like causality and robustness.
The best part is that you can read it for free: ml-science-book.com
Timo and I recently published a book, and even if you are not a scientist, you'll find useful overviews of topics like causality and robustness.
The best part is that you can read it for free: ml-science-book.com
November 15, 2024 at 9:46 AM
Interested in machine learning in science?
Timo and I recently published a book, and even if you are not a scientist, you'll find useful overviews of topics like causality and robustness.
The best part is that you can read it for free: ml-science-book.com
Timo and I recently published a book, and even if you are not a scientist, you'll find useful overviews of topics like causality and robustness.
The best part is that you can read it for free: ml-science-book.com
Christmas holiday in Knaresborough
December 27, 2024 at 7:23 AM
Christmas holiday in Knaresborough
Reposted by Matt McDonnell
A #map of the world in the #Spilhaus projection with the global #ocean as the main focus. It includes arrows of the global currents (@oceanandice.bsky.social) and sea surface temperature & velocity (Niklas Röber).
It shows the interconnectedness of the world's oceans with #Antarctica at the centre!
It shows the interconnectedness of the world's oceans with #Antarctica at the centre!
November 27, 2024 at 10:04 AM
A #map of the world in the #Spilhaus projection with the global #ocean as the main focus. It includes arrows of the global currents (@oceanandice.bsky.social) and sea surface temperature & velocity (Niklas Röber).
It shows the interconnectedness of the world's oceans with #Antarctica at the centre!
It shows the interconnectedness of the world's oceans with #Antarctica at the centre!
Visiting Perth for a couple of weeks - some local birbs around Quinns Rocks area
April 7, 2024 at 11:55 PM
Visiting Perth for a couple of weeks - some local birbs around Quinns Rocks area
Tadpoles at Logan's Meadow 🐸🐸🐸
March 31, 2024 at 7:36 AM
Tadpoles at Logan's Meadow 🐸🐸🐸
Saturday Cambridge wanderings - Logan's Meadow frogs have spawned! 🐸🐸🐸
March 9, 2024 at 7:47 PM
Saturday Cambridge wanderings - Logan's Meadow frogs have spawned! 🐸🐸🐸
Frogs are back at Logan's Meadow!
February 18, 2024 at 6:40 PM
Frogs are back at Logan's Meadow!
