Sign in

Rodrigo A. Vargas-Hdz

@rovargash.bsky.social
127 followers 184 following 41 posts

PhysChem + ML | Assistant Prof. at McMasterU | 🇲🇽 emigrant living in 🇨🇦 | Amateur cyclist on weekends | views my own chemai-lab.com

PostsRepliesMedia
Reposted by Rodrigo A. Vargas-Hdz
Dulwich Quantum Computing @dulwichquantum.bsky.social · 10/09/2026
Personal advice: Now that everyone uses LLMs, you should be more ambitious and go for harder problems!* * But don't be too ambitious. If solving the problem would actually be a big deal then be aware that OpenAI might throw millions of dollars and infinite compute to scoop you the last minute.
2161 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 10/09/2026
New preprint 🚨! I’m really excited about this work led by @ishume.bsky.social :) We introduce Grinch, a framework that uses GFlowNets to construct quantum optical circuit graphs from the bottom up, edge-by-edge. 📜: arxiv.org/abs/2609.08073 #AIForScience #ML4Phys
020 0
Reposted by Rodrigo A. Vargas-Hdz
Vianey Leos Barajas @vianeylb.bsky.social · 31/07/2026
I have a project for this AI for science postdoc application: schmidtfellows.utoronto.ca To work on videos of migrating fish (eg salmon), for classification, segmentation, uncertainty quantification. Don’t need to be AI expert, but demonstrate high potential. Reach out if interested.
schmidtfellows.utoronto.ca
179 0
Reposted by Rodrigo A. Vargas-Hdz
Jan H. Jensen @janhjensen.bsky.social · 28/07/2026
Axel Dieter Becke: Not just the "B" in "B3LYP" arxiv.org/abs/2607.21465 #compchem
arxiv.org
Axel Dieter Becke: Not just the "B" in "B3LYP"
There is hardly anyone doing electronic structure calculations on molecules who has not used the famous B3LYP functional. Many will even know that the "B" in B3LYP stands for Becke, but how many know ...
061 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 07/07/2026
Achievement Unlocked 🎉🎊🎆 The work lead by @ishume.bsky.social, was shared by @hilbertspacepost.bsky.social !!!
020 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 07/07/2026
Agreed but still to be better we have to face better opponents. It’s the problem with CONCACAF
100 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 07/07/2026
This shows the real level of CONCACAF :/
100 0
Reposted by Rodrigo A. Vargas-Hdz
Dr. Paulette Vincent-Ruz @stemxicaned.latinsky.app · 06/07/2026
I want to make clear we made the mistake that allowed that second goal. If we lose we lose. But I am fucking proud of my country because they are playing with everything
061 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 13/05/2026
Such a timing tag :) (thanks @aspuru.bsky.social ) Within the next month we will post a chemarxiv paper on our retrosynthesis model :) Is there anything in particular that you would like to chat about? I can loop my student who is the main driver of this project.
000 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 24/04/2026
@ishume.bsky.social
010 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 22/01/2026
Thanks to Asma's hard work, molpipx is now pip-installable and has a comprehensive documentation website! 🎉 pip install molpipx 📖 Docs: lnkd.in/em6NTsNr 🔗 GitHub: lnkd.in/gHeNnCqg @compchem.bsky.social
lnkd.in
LinkedIn
This link will take you to a page that’s not on LinkedIn
000 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 20/01/2026
🚀 Call for Students & Postdocs 🗓 Deadline: Feb 3 I’m scouting talented students & postdocs interested in ML for Materials and ML for Quantum Science for potential training & research opportunities under CIRTA at @McMasterCCB Interest form: forms.gle/uV7fLhokmTCs... #compchem
forms.gle
000 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 12/12/2025
Congrats to Carlos for getting his paper accepted at JCTC @pubs.acs.org #compchem #bayesopt arxiv.org/abs/2506.22533
arxiv.org
Scalable Bayesian Optimization for High-Dimensional Coarse-Grained Model Parameterization
Coarse-grained (CG) force field models are extensively utilised in material simulations due to their scalability. Traditionally, these models are parameterized using hybrid strategies that integrate t...
020 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 18/10/2025
Carbonic café around the corner is a super coffee shop!
010 0
Reposted by Rodrigo A. Vargas-Hdz
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 17/10/2025
🔥 Fresh out of the arXiv oven — new work from the ChemAI-Lab! “Spectral Analysis of Molecular Kernels: When Richer Features Do Not Guarantee Better Generalization” 👉 arxiv.org/abs/2510.14217 #compchem @mcmasteruniversity.bsky.social @bimr-mcmaster.bsky.social
arxiv.org
Spectral Analysis of Molecular Kernels: When Richer Features Do Not Guarantee Better Generalization
Understanding the spectral properties of kernels offers a principled perspective on generalization and representation quality. While deep models achieve state-of-the-art accuracy in molecular property...
021 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 17/10/2025
🔥 Fresh out of the arXiv oven — new work from the ChemAI-Lab! “Spectral Analysis of Molecular Kernels: When Richer Features Do Not Guarantee Better Generalization” 👉 arxiv.org/abs/2510.14217 #compchem @mcmasteruniversity.bsky.social @bimr-mcmaster.bsky.social
arxiv.org
Spectral Analysis of Molecular Kernels: When Richer Features Do Not Guarantee Better Generalization
Understanding the spectral properties of kernels offers a principled perspective on generalization and representation quality. While deep models achieve state-of-the-art accuracy in molecular property...
021 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 30/09/2025
🚨 New paper accepted at #NeurIPS2025 #ML4Phys! We propose Meta-Learning Fourier Neural Operators to approximate inverse Hessians for variational data assimilation.
arxiv.org
Meta-Learning Fourier Neural Operators for Hessian Inversion and Enhanced Variational Data Assimilation
Data assimilation (DA) is crucial for enhancing solutions to partial differential equations (PDEs), such as those in numerical weather prediction, by optimizing initial conditions using observational ...
020 0
Reposted by Rodrigo A. Vargas-Hdz
arxiv quant-ph @arxiv-quant-ph.bsky.social · 22/09/2025
Isaac L. Huidobro-Meezs, Jun Dai, Rodrigo A. Vargas-Hern\'andez Discrete Flow-Based Generative Models for Measurement Optimization in Quantum Computing arxiv.org/abs/2509.15486
031 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 22/09/2025
🚨 New on arXiv! We adapt GFlowNets for measurement optimization in quantum computing Generative, diverse, & hardware-aware groupings → fewer shots, flexible trade-offs. 📄 arxiv.org/abs/2509.15486 @ishume.bsky.social #compchem #chemsky
041 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 11/08/2025
Exciting news! 🎉 My student, @ishume.bsky.social , has been selected as one of the 2025 @sandboxaq.bsky.social Scholarship Recipients! We can’t wait to show you what GenAI can do for quantum computing, stay tuned!! www.sandboxaq.com/company/scho... @mcmasteruniversity.bsky.social
sandboxaq.com
SandboxAQ Scholarship Program
SandboxAQ is proud to announce the launch of two exciting initiatives designed to support PhD students pursuing cutting-edge research in AQ (AI and Quantum) technology.
051 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 03/07/2025
🚀BayesOpt for "large" Coarse-Grained Models! BayesOpt enabled the optimization of a 41-parameter CG model without traditional heuristics or task decomposition. arxiv.org/abs/2506.22533 #compchem #AI4Science #machinelearning
arxiv.org
Scalable Bayesian Optimization for High-Dimensional Coarse-Grained Model Parameterization
Coarse-grained (CG) force field models are extensively utilised in material simulations due to their scalability. Traditionally, these models are parameterized using hybrid strategies that integrate t...
061 0
Reposted by Rodrigo A. Vargas-Hdz
Brockhouse Institute for Materials Research @bimr-mcmaster.bsky.social · 09/06/2025
We’ve landed on BlueSky! Welcome to the Brockhouse Institute for Materials Research at McMaster University. On this account we will be sharing about upcoming events, recent work from our members, and all things related to the Institute. Follow along!
021 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 01/05/2025
I had fun :) Thanks for inviting me!
010 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 29/04/2025
Congratulations to the new PhD @guillemsimeon.bsky.social !! From a NEURIPS poster discussion to being invited to his PhD exam!!
140 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 24/04/2025
Thanks for inviting us :)
010 0
Reposted by Rodrigo A. Vargas-Hdz
Stijn De Baerdemacker @cortogantese.bsky.social · 24/04/2025
Wonderful talk and discussion by Alexandre de Camargo from @rovargash.bsky.social group at #QuNB group meeting this morning, sailing us through a #NormalizingFlow perspective of #Orbital-FreeDFT. More details at: dx.doi.org/10.1088/2632... #chemsky #theochem #ml4chem
Slide of Alexandre de Camargo's talk on normalizing flows for orbital free DFT.  Left panel shows a flow from a gaussian base distribution to a bimodal distribution for LiH at 10.0bohr.  Right panel shows three distributions at R = 0.7, 2.95 & 10.0bohr
121 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 14/04/2025
Happy Quantum Day??
010 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 28/03/2025
010 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 03/03/2025
:)
010 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 25/02/2025
Beer is better haha
000 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 21/02/2025
Claro que tengo un poco de nervios de mi plática mañana! Pero tmb ando bn emocionado!!! :)
000 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 14/02/2025
El próximo viernes en el Instituto de Física en mi amada UNAM!!
010 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 03/02/2025
Did you listen to DT’s new song???
100 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 01/02/2025
One of my former supervisors said that seminars should be between Tuesday and Thursday so no one travels during the weekend. I kind of agree with this too
010 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 31/01/2025
🎉🪅Congrats to Asma and Manuel for getting MOLPIPx accepted in JChemPhys!! 📜: arxiv.org/abs/2411.17011 🖥️: github.com/ChemAI-Lab/m... #compchem
arxiv.org
MOLPIPx: an end-to-end differentiable package for permutationally invariant polynomials in Python and Rust
In this work, we present MOLPIPx, a versatile library designed to seamlessly integrate Permutationally Invariant Polynomials (PIPs) with modern machine learning frameworks, enabling the efficient deve...
060 0
Reposted by Rodrigo A. Vargas-Hdz
Vianey Leos Barajas @vianeylb.bsky.social · 31/01/2025
The world is on 🔥 -- and here's my first publication in an astronomy journal: iopscience.iop.org/article/10.3... We combine Gaussian processes + hidden Markov models to efficiently detect stellar flares in one modelling step. 🧪
2399 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 21/01/2025
No table was burned during this demo :) #chemistry
030 0
Reposted by Rodrigo A. Vargas-Hdz
Patrick Kidger @patrickkidger.bsky.social · 21/01/2025
✨We're hiring for bio roles at Cradle! You can expect to work on a huge variety of problems (antibodies, enzymes, peptides, ...) across all modalities (therapeutics, agtech, biosynthesis, ...), as at this point (post series B) we work with pretty much the whole industry. [1/2]
jobs.ashbyhq.com
Bioinformatician - Protein Science
THIS IS CRADLE Proteins are the molecular machines of life, used for many therapeutic, diagnostic, chemical, agricultural and food applications. Designing and optimizing proteins takes a lot of exper...
1161 0
Reposted by Rodrigo A. Vargas-Hdz
Randall Munroe @xkcd.com · 21/01/2025
Chemical Formulas xkcd.com/3040
346255532044 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 17/01/2025
Hola :)
000 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 14/01/2025
Sometimes I’m allowed to blew up things in my job! #chemistry
070 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 06/01/2025
The first lecture in front of 300ish students is always a humbling experience!!
020 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 30/12/2024
I’m also interested in this JAX #jax #machinelearning
050 0
Reposted by Rodrigo A. Vargas-Hdz
Isaac Huidobro Meezs @ishume.bsky.social · 15/12/2024
Great week at @neuripsconf.bsky.social ! Excited to present my work on GFlowNets for Chemistry in Quantum Computers at the Machine Learning and the Physical Sciences workshop with @rovargash.bsky.social 😬 #NeurIPS2024 #ml4ps2024 #ml4phys #compchem
031 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 15/12/2024
🚨 if you are interested on GFlowNets for the electronic structure problem and NISQ, come chat with us at the #ml4ps2024 #NeurIPS2024 @ML4PhyS 📃 doi.org/10.48550/arXiv… @ishume94
000 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 14/12/2024
🚨Come chat with us about SPECTRA-to-MOLECULE !! Kudos to the team and @rudra_sondhi #AI4MAT at #nuerips2024 doi.org/10.26434/chemr…
040 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 10/12/2024
Poster 167: Stop by and chat with us @ishume.bsky.social about our GFlowNets approach for Hamiltonian decomposition :) arxiv.org/abs/2410.16041 #compchem
arxiv.org
GFlowNets for Hamiltonian decomposition in groups of compatible operators
Quantum computing presents a promising alternative for the direct simulation of quantum systems with the potential to explore chemical problems beyond the capabilities of classical methods. However, c...
150 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 10/12/2024
Seen at #Neurips2024 !
030 0
Rodrigo A. Vargas-Hdz @rovargash.bsky.social · 10/12/2024
I’ll be in #NeurIPS :) If you want to talk about quantum chemistry and AI/ML please let me know!
020 0
Reposted by Rodrigo A. Vargas-Hdz
Marta Skreta @martaowesyou.bsky.social · 09/12/2024
1/3 🧵Quantum conundrum: we want expressive circuits, but current hardware only allows short coherence times, and so more parameters = more problems. Check out our #NeurIPS2024 paper “Quantum Deep Equilibrium Models”.
1136 0