Sam Duffield Profile
Sam Duffield

@Sam_Duffield

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499
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1K
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11
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99

London, England
Joined January 2012
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@Sam_Duffield
Sam Duffield
1 year
So happy to release posteriors 𝞡. We've carefully designed the package to be easily extensible, come tell us about your favourite method or application!. Open source, scalable, uncertainty quantification FTW 🥳.
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github.com
Uncertainty quantification with PyTorch. Contribute to normal-computing/posteriors development by creating an account on GitHub.
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@Sam_Duffield
Sam Duffield
19 days
RT @MaxAifer: The era of Physics-based ASICs has arrived. On the surface, computing infrastructure seems unready to meet the demands of AI….
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@Sam_Duffield
Sam Duffield
1 month
RT @thomasahle: VerilogEval is an odd coding dataset - it gives the agent access to the golden testbench, which you will use to evaluate th….
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@Sam_Duffield
Sam Duffield
2 months
RT @GhugareRaj: Normalizing Flows (NFs) check all the boxes for RL: exact likelihoods (imitation learning), efficient sampling (real-time c….
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@Sam_Duffield
Sam Duffield
2 months
You may think it’s “I use AI” but really it’s “AI uses me”.
@dpkingma
Durk Kingma
2 months
It's already the case that people's free will gets hijacked by screens for hours a day, with lots of negative consequences. AI video can make this worse, since it's directly optimizable. AI video has positive uses, but most of it will be fast food for the mind.
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@Sam_Duffield
Sam Duffield
3 months
RT @jxbz: @LucaAmb @Cohere_Labs @ml_collective Hmm. To me it makes sense that first-order methods are ones that use first derivatives and a….
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@Sam_Duffield
Sam Duffield
3 months
RT @sp_monte_carlo: @xidulu Always a bit funny to me how the interpretation of "second-order optimisation" is not as narrowly-defined as on….
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@Sam_Duffield
Sam Duffield
3 months
RT @NormalComputing: posteriors 𝞡, our open source Python library for Bayesian computation, will be presented at #ICLR2025! posteriors prov….
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@Sam_Duffield
Sam Duffield
4 months
We've also updated the paper and made some cool updates to the library 😎. Paper: Repo:
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@Sam_Duffield
Sam Duffield
4 months
📃 Poster #419.🗓️ Sat 26th, 10:00–12:30.📍 #ICLR2025, Singapore. Swing by if you’re into probml, thermodynamic computing or just wanna say hi.
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@Sam_Duffield
Sam Duffield
4 months
posteriors 𝞡 published at ICLR!. I’ll be in Singapore next week, let’s chat all things scalable Bayesian learning! 🇸🇬👋.
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@Sam_Duffield
Sam Duffield
4 months
RT @FarisSbahi: Come out and join us, so we can talk about physical world AI and thermodynamic chips. Looking forward to hosting with @nath….
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@Sam_Duffield
Sam Duffield
4 months
RT @ColesThermoAI: Really exciting progress in silicon happening now at @NormalComputing. Check out Zach's blog post to read more about wha….
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@Sam_Duffield
Sam Duffield
4 months
RT @blip_tm: during NYC deep tech week, i gave a talk about how @NormalComputing is scaling our thermodynamic computing paradigm to tackle….
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@Sam_Duffield
Sam Duffield
4 months
So simple! . Normally, we order our minibatches like.a, b, c, . , [shuffle], new_a, new_b, new_c, . but instead, if we do.a, b, c, . , [reverse], . , c, b, a, [shuffle], new_a, new_b, . The RMSE of stochastic gradient descent reduces from O(h) to O(h²)
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@Sam_Duffield
Sam Duffield
6 months
RT @KaelanDon: Check out our new paper on thermodynamic optimization! 🔥. We show how K-FAC, a powerful and scalable second-order optimizer,….
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@Sam_Duffield
Sam Duffield
6 months
RT @LucaAmb: @docmilanfar @Magnyz I think that Kalman filters are one of the few things that are genuinely much easier to understand from a….
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@Sam_Duffield
Sam Duffield
6 months
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@Sam_Duffield
Sam Duffield
6 months
Thermo Matrix Exponentials has been published in Physical Review Research 🔥. On a thermodynamic computer, the matrix exponential occurs very naturally through the temporal covariance driven by the noise - a polynomial speedup over digital computers!.
journals.aps.org
Thermodynamic computing exploits fluctuations and dissipation in physical systems to efficiently solve various mathematical problems. It was recently shown that certain linear algebra problems can be...
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@Sam_Duffield
Sam Duffield
6 months
I somehow lost the markdown for this so I asked GPT-4o to recover it from the image. Not only did it do a perfect job of the latex, formatting etc it also silently corrected the error/typo in the definition of V.
@MaxAifer
Max Aifer
6 months
An equally brilliant solution comes to us from @Sam_Duffield, who deploys a kind of statistical voodoo to reach the goal
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@Sam_Duffield
Sam Duffield
6 months
RT @MaxAifer: An equally brilliant solution comes to us from @Sam_Duffield, who deploys a kind of statistical voodoo to reach the goal http….
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