Pith. sign in

REVIEW 19 cited by

Learning Likelihoods with Conditional Normalizing Flows

Not yet reviewed by Pith; the record is open.

This paper has not been read by Pith yet. Machine review is queued; the pith claim, tier, and objections will appear here once it completes.

SPECIMEN: schema-true, not a live event

T0 review · schema-true

One-sentence machine reading of the paper's core claim.

pith:XXXXXXXX · record.json · timestamp

arxiv 1912.00042 v2 pith:GZ26LJB2 submitted 2019-11-29 cs.LG cs.CVstat.ML

Learning Likelihoods with Conditional Normalizing Flows

classification cs.LG cs.CVstat.ML
keywords cnfsflowsconditionalnormalizingbasecorrelationsdensitymodel
verification ladder T0 review T1 audit T2 compute T3 formal T4 reserved
0 comments
Share X Bluesky LinkedIn Reddit HN
read the original abstract

Normalizing Flows (NFs) are able to model complicated distributions p(y) with strong inter-dimensional correlations and high multimodality by transforming a simple base density p(z) through an invertible neural network under the change of variables formula. Such behavior is desirable in multivariate structured prediction tasks, where handcrafted per-pixel loss-based methods inadequately capture strong correlations between output dimensions. We present a study of conditional normalizing flows (CNFs), a class of NFs where the base density to output space mapping is conditioned on an input x, to model conditional densities p(y|x). CNFs are efficient in sampling and inference, they can be trained with a likelihood-based objective, and CNFs, being generative flows, do not suffer from mode collapse or training instabilities. We provide an effective method to train continuous CNFs for binary problems and in particular, we apply these CNFs to super-resolution and vessel segmentation tasks demonstrating competitive performance on standard benchmark datasets in terms of likelihood and conventional metrics.

discussion (0)

Sign in with ORCID, Apple, or X to comment. Anyone can read and Pith papers without signing in.

Forward citations

Cited by 19 Pith papers

Reviewed papers in the Pith corpus that reference this work. Sorted by Pith novelty score.

  1. One Generator, Any Process: LLM-Conditioning for the LHC

    hep-ph 2026-06 unverdicted novelty 7.0

    LLM embeddings condition generative networks for LHC events, yielding faster convergence, higher quality, and generalization to unseen processes.

  2. Generative Frontier Planning for Adaptive Peer-Referral Recruitment under Covariate-Dependent Arrivals

    cs.LG 2026-06 unverdicted novelty 7.0

    Generative Frontier Planning replaces Monte-Carlo sampling with a deterministic backup over a latent covariate-coverage surrogate to achieve tractable (1-1/e)-approximate per-round allocation in covariate-dependent pe...

  3. A Practical Upper Bound on Selection Bias Effects in Medical Prediction Models

    cs.LG 2026-05 unverdicted novelty 7.0

    A new upper bound is derived for the worst-case effect of selection bias on medical prediction model performance under partial observation of the selection process and target data.

  4. Non-Parametric Rehearsal Learning via Conditional Mean Embeddings

    cs.LG 2026-05 unverdicted novelty 7.0

    A non-parametric rehearsal learning framework using conditional mean embeddings and a Probit surrogate for avoiding undesired outcomes, with consistency guarantees.

  5. A Flow Matching Algorithm for Many-Shot Adaptation to Unseen Distributions

    cs.LG 2026-05 unverdicted novelty 7.0

    FP-FM adapts flow matching models to unseen distributions via least-squares projection onto basis functions spanning training velocity fields, yielding improved precision and recall without inference-time training.

  6. Order-based Rehearsal Learning

    cs.LG 2026-05 unverdicted novelty 7.0

    Order-based rehearsal learning learns sufficient order structures from observational data to make decisions avoiding undesired events, outperforming graph-based methods and matching oracle graph baselines in experiments.

  7. Data-Driven Predictions for Dark Photon and Millicharged Particle Production

    hep-ph 2025-12 unverdicted novelty 7.0

    A data-driven framework using normalizing flows predicts the rate and kinematic distributions of dark photon and millicharged particle production directly from measured dilepton events.

  8. Factored Classifier-Free Guidance

    cs.CV 2025-06 unverdicted novelty 7.0

    Factored Classifier-Free Guidance enables per-attribute control in classifier-free guidance for diffusion models to produce more sound counterfactuals.

  9. Inherited or produced? Inferring protein production kinetics when protein counts are shaped by a cell's division history

    q-bio.QM 2025-06 unverdicted novelty 7.0

    Conditional normalizing flows approximate intractable likelihoods arising from cell division history to conclude that glc3 is mostly inactive under nutrient stress in yeast, with brief transient expression.

  10. Lyman-$\alpha$ forest holography: 3D predictions from 1D measurements

    astro-ph.CO 2026-07 conditional novelty 6.0

    One-dimensional Lyman-α forest power spectrum measurements, propagated through the ForestFlow emulator, predict three-dimensional clustering that matches DESI BAO and ACCEL-2 simulation results.

  11. Flow-Based Surrogates for High-Dimensional Likelihoods in Experimental Neutrino Physics

    hep-ex 2026-07 accept novelty 6.0

    A hybrid coupling-plus-autoregressive normalizing flow trained on a 110-parameter T2K-like near-detector likelihood reaches 98% relative ESS versus 5% for the post-fit Gaussian and matches MCMC flux predictions.

  12. Flow-Based Surrogates for High-Dimensional Likelihoods in Experimental Neutrino Physics

    hep-ex 2026-07 accept novelty 6.0

    A hybrid coupling-plus-autoregressive normalizing flow reproduces a 110-parameter non-Gaussian near-detector likelihood at 98% relative ESS versus ~5% for the post-fit Gaussian, matching MCMC while remaining evaluable...

  13. One Generator, Any Process: LLM-Conditioning for the LHC

    hep-ph 2026-06 unverdicted novelty 6.0

    LLM embeddings condition a generative transformer to enable faster convergence, better performance, and generalization to unseen LHC processes using a single model.

  14. Uncertainty-aware Multi-fidelity Closure via Conditional Normalizing Flows

    cs.LG 2026-05 unverdicted novelty 6.0

    Conditional normalizing flows learn a probabilistic mapping from low-fidelity to high-fidelity ROM coefficients for closure correction in 2D Navier-Stokes vortex merging, with direct and residual strategies providing ...

  15. Non-Invasive Reconstruction of Intracranial EEG Across the Deep Temporal Lobe from Scalp EEG based on Conditional Normalizing Flow

    q-bio.NC 2026-02 conditional novelty 6.0

    A conditional normalizing flow reconstructs band-limited (0.5–50 Hz) intracranial EEG from scalp EEG across multiple medial temporal lobe subregions in three epilepsy patients, with held-out session results comparable...

  16. An invertible generative model for forward and inverse problems

    stat.ML 2025-09 conditional novelty 6.0

    A single invertible map constructed from two triangular normalizing flows can conditionally sample both the likelihood and the posterior in Bayesian inverse problems.

  17. Hierarchical RBF-KAN and RBF-SKAN Architectures for Multidimensional Function Approximation and Random Field Learning

    cs.LG 2026-06 unverdicted novelty 4.0

    Hierarchical radial-basis-function Kolmogorov-Arnold networks are introduced with proofs of universal approximation for functions and random fields under Wasserstein-2 distance.

  18. Context-Conditioned Generative Models Enable Subnational Refinement of Sparse Humanitarian Surveys

    cs.CY 2026-05 unverdicted novelty 4.0

    Context-conditioned normalizing flows refine subnational survey distributions under severe data scarcity when conditioning covariates capture local heterogeneity.

  19. Machine Learning Techniques for Astrophysics and Cosmology: Lyman-$\alpha$ forest

    astro-ph.CO 2026-05 unverdicted novelty 2.0

    Review of machine learning applications for analyzing Lyman-alpha forest observations to probe cosmology, reionization, and dark matter.