gully
@gully_
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Scientist and technologist at UT Austin Department of Astronomy. Previously with Kepler/K2 at NASA Ames, and KIAA in Beijing. From Boston.
Austin, TX
Joined October 2011
Profoundly awesome thing for computational science: You can automatically get chi-squared contours with jax and inverting the Fisher matrix, with ONE function evaluation. Jax: https://t.co/ObN2wQ5nEv Here is a paper explaining Fisher matrices. https://t.co/JQd0LLpYvC
arxiv.org
Fisher matrices are used frequently in the analysis of combining cosmological constraints from various data sets. They encode the Gaussian uncertainties of multiple variables. They are simple to...
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In case you haven't heard yet, I'm running for Mayor of Bremerton! I've been humbled by so many asking me to do so, and the support I've gotten from friends, family, neighbors, and so many current and former public servants in our city.
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Cowboy hat curve
For only the 2nd time ever, renewables met more than 75% of demand and carbon free sources (renewables & nuclear) made up 86% in ERCOT. Renewables could have provided more but were curtailed; note how the top of the cowboy hat curve is lopped off. More than enough for 100% today.
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A follow-up campaign is ongoing where citizen astronomers can observe the Gaia spacecraft. Interested? 👉 https://t.co/q2WHKnbKHx Shown below the Gaia spacecraft as observed from Germany by A. Wrede. Also interested to observe Gaia? More info here: https://t.co/VEQLM5kCYe
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This month we are thrilled to be hosting @andrewgwils in our Seminar Series for his talk entitled 'Machine Learning is Linear Algebra'. 13 February 2025 @ 16:00 GMT via Zoom, details: https://t.co/aBxCHlhJt6
@Cambridge_Uni @Cambridge_Eng @ELLISforEurope
#AI #MachineLearning
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Know Thy Star, Know Thy Planet 2 kicks off today! A follow-on to the successful Know Thy Star conference held in 2017, #KnowThyStar2 welcomes almost 200 registrants to @Caltech for some stellar discussion on exoplanet science. 💫🤩✨Talks will be posted to YouTube next week!
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PyTorch 2.6 is here! This release brings key improvements, including: 🔥 torch.compile support for Python 3.13 🔥 A new performance tuning knob: torch.compiler.set_stance 🔥 Enhancements to AOTInductor 🔥 FP16 support on X86 CPUs Learn more in our release blog:
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My annual decarbonization presentation is here. 200 slides, covering everything from water levels in Lake Gatún to sulfur dioxide emissions to ESG fund flows to Chinese auto exports to artificial intelligence. Link in reply
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Useful!
Google Cloud just recently released "The PyTorch developer's guide to JAX fundamentals". Contains a side-by-side implementation of a training loop in both Pytorch and JAX + Flax NNX sor those interested in exploring the JAX world in familiar terms.
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On the coldest day of the winter, solar nearly set an all-time record in Texas. (h/t @grid_status). #txlege #txenergy #energytwitter
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made a diagram to promote differentiable programming in astronomy (feel free to use it)
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Copilot is now free! Probably the biggest news for developers in 2024.
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A colleague inspired me to explore how programming languages have evolved in astronomy, especially since we've been curating astronomical literature. Fascinating.
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The papers and posters for our Machine Learning and Physical Sciences workshop at #NeurIPS2024 are online #ml4ps2024 @ML4PhyS
https://t.co/okEep7NcMF
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If there's a Uri-like storm this winter, outages would be less severe bc we have more solar + storage & weatherization of power plants is better but we'd still have outages bc we haven't made much progress on gas supply weatherization or energy efficiency. https://t.co/wwjRHKDjjw
fox7austin.com
With winter already here in Texas, how prepared is our power grid? FOX 7 Austin's John Krinjak spoke one-on-one with local energy expert Doug Lewin in this FOX 7 Focus.
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The graphic below is from the @FastCompany article @GovAbbott cited. Truly extraordinary what is happening here, particularly with the solar and storage buildout. One out of every 14 jobs posted in Texas this summer was in clean energy. #txlege #txenergy #energytwitter
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Looks like science+ML twitter is doing its great exodus. I'll stick around here too but come find me in the other place 🧪🦋 :) (Featuring: a beautiful cover photo I took a few weeks ago. Switzerland is a pretty awesome place to live!)
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The UK is one of a handful of countries on track to meet aggressive emissions reduction goals (at least if one extrapolates from recent rates of decarbonization). How has climate mitigation matinained such bipartisan continuity in the UK? Asking for some friends across the
The UK's 2035 climate pledge, announced at #COP29 yesterday, is to cut emissions to 81% below 1990 levels by 2035 Here's how that looks in context…
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