BayesFlow

BayesFlow

@bayesflow.org

Amortized Bayesian Workflows in Python. 🎲 Post author sampled from a multinomial distribution, choices ⋅ @stefanradev.bsky.social ⋅ @paulbuerkner.com ⋅ @jerrymhuang.bsky.social 🔗 GitHub github.com/bayesflow-org/bayesflow 💬 Forum discuss.bayesflow.org

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BayesFlow is a library for amortized Bayesian inference with neural networks. ⋅ Multi-backend via Keras 3: Use PyTorch, TensorFlow, or JAX. ⋅ Modern nets: Flow matching, diffusion, consistency models, normalizing flows, transformers ⋅ Built-in diagnostics and plotting 🔗 github.com/bayesflow-or...

BayesFlow 2.1.0 is now live! 🚀 Our new major release includes lots of goodies: differentiable adapters, better inference network featuring Mean Flow, unified masking, redesigned multilevel inference, and much more! 🎉 The sky is the limit. And as always, keep rocking! 😎 github.com/bayesflow-or...

github.comGitHub - bayesflow-org/bayesflow: A Python library for simulation-based inference with deep learningA Python library for simulation-based inference with deep learning - bayesflow-org/bayesflow

Check out the new baygent skill @alex-andorra.bsky.social and I wrote to automate your amortized workflows! 🚀 learnbayesstats.com/blog-posts/a...

learnbayesstats.comTrain Once, Infer a Million Times: Bayesian Inference That's (Finally) Cheap at Query TimeMCMC re-runs from scratch on every new dataset. Amortized Bayesian inference pays the cost once -- then gives you a posterior in milliseconds, forever. Stefan Radev (BayesFlow creator) and I built an ...

BayesFlow reposted

psteinb.bsky.social

@psteinb.bsky.social

Had a blast running a workshop on “Open challenges in SBI” with @helmholtzai.bsky.social yesterday. #HAICON26 The great @deismic.bsky.social shared his views on the genesis of SBI & its future! Posters demoed breadth of SBI uses. Thanks to all who contributed! @sbi-devs.bsky.social @bayesflow.org

On Feb 9, Jonas Arruda and @alex-andorra.bsky.social will give a live demo on diffusion models for SBI using BayesFlow. Don't miss out! www.linkedin.com/feed/update/...

linkedin.comDiffusion Models in Python: Live Demo with Alexandre Andorra | Alexandre Andorra📢 Big News: We are going LIVE with code! Diffusion models aren't just for generating images -- they are a powerful tool for scientific inference. On Feb 9, I’m hosting Jonas Arruda on the Learning Ba...

Diffusion models & flow matching are reshaping simulation-based inference. Thus, we wrote the first tutorial review on diffusion-based SBI. For an overview or a deep dive, check it out and let us know what you think: arXiv: arxiv.org/abs/2512.20685 Web: bayesflow-org.github.io/diffusion-ex...

arxiv.orgDiffusion Models in Simulation-Based Inference: A Tutorial ReviewDiffusion models have recently emerged as powerful learners for simulation-based inference (SBI), enabling fast and accurate estimation of latent parameters from simulated and real data. Their score-b...

All diffusion models, hyperparameter settings, and samplers are available in bayesflow 2!

Simulations are no longer just “nice to have.” They’re reshaping how we do statistics. Care to learn more? Check out our paper arxiv.org/abs/2503.24011, accepted for publication in the upcoming theme issue of Philosophical Transactions A.

BayesFlow reposted

@numfocus.bsky.social

BayesFlow released version 2.0.4, presented numerous findings at the MathPsych/ICCM 2025 conference at Ohio State University, and expanded its contributor list to 25 active members! Congrats to BayesFlow on all these new huge accomplishments!

🧠 Check out the classic examples from Bayesian Cognitive Modeling: A Practical Course (Lee & Wagenmakers, 2013), translated into step-by-step tutorials with BayesFlow! Interactive version: kucharssim.github.io/bayesflow-co... PDF: osf.io/preprints/ps...

kucharssim.github.ioIntroduction – Amortized Bayesian Cognitive Modeling

Finite mixture models are useful when data comes from multiple latent processes. BayesFlow allows: • Approximating the joint posterior of model parameters and mixture indicators • Inferences for independent and dependent mixtures • Amortization for fast and accurate estimation 📄 Preprint 💻 Code

A study with 5M+ data points explores the link between cognitive parameters and socioeconomic outcomes: The stability of processing speed was the strongest predictor. BayesFlow facilitated efficient inference for complex decision-making models, scaling Bayesian workflows to big data. 🔗Paper

Join us this Thursday for a talk on efficient mixture and multilevel models with neural networks by @paulbuerkner.com at the new @approxbayesseminar.bsky.social!

Approximate Bayes Seminar@approxbayesseminar.bsky.social

A reminder of our talk this Thursday (30th Jan), at 11am GMT. Paul Bürkner (TU Dortmund University), will talk about "Amortized Mixture and Multilevel Models". Sign up at listserv.csv.warwick... to receive the link.

1️⃣ An agent-based model simulates a dynamic population of professional speed climbers. 2️⃣ BayesFlow handles amortized parameter estimation in the SBI setting. 📣 Shoutout to @masonyoungblood.bsky.social & @sampassmore.bsky.social 📄 Preprint: osf.io/preprints/ps... 💻 Code: github.com/masonyoungbl...

Kyle Cranmer@kylecranmer.bsky.social

One of the most surprising uses of simulation-based inference: agent based models of olympic speed climbers osf.io/preprints/ps...

Neural superstatistics are a framework for probabilistic models with time-varying parameters: ⋅ Joint estimation of stationary and time-varying parameters ⋅ Amortized parameter inference and model comparison ⋅ Multi-horizon predictions and leave-future-out CV 📄 Paper 1 📄 Paper 2 💻 BayesFlow Code

Any single analysis hides an iceberg of uncertainty. Sensitivity-aware amortized inference explores the iceberg: ⋅ Test alternative priors, likelihoods, and data perturbations ⋅ Deep ensembles flag misspecification issues ⋅ No model refits required during inference 🔗 openreview.net/forum?id=Kxt...

The paper was led by @elseml.bsky.social, with multiple high-impact applications: 🦠 Disease outbreak modeling 🌎 Global warming thresholds 🧠 Human decision-making ✨ Sensitivity-aware amortized inference increases the amortization scope by a lot. Another step towards a Bayesian foundation model!

The software implementation elegantly uses BayesFlow‘s modular data pipeline: - Observables are embedded by a summary network. - Context information (eg, prior and likelihood type) bypasses the summary net and enters the normalizing flow as direct conditions. 📀 Code: github.com/bayesflow-or...

github.comGitHub - bayesflow-org/SA-ABI: Contains the code accompanying the paper "Sensitivity-Aware Amortized Bayesian Inference".Contains the code accompanying the paper "Sensitivity-Aware Amortized Bayesian Inference". - bayesflow-org/SA-ABI

To celebrate the new beginnings on Bluesky, let's reminisce about one of our highlights from the old days: The unexpected shout-out by @fchollet.bsky.social that made everyone go crazy on the BayesFlow Slack server and led to a 15% increase in GitHub stars.

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