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arXiv research

A locally-built, LLM-digested index of recent arXiv papers in quant finance, geometry/topology, and statistical ML — keyword search served straight from SQLite on this machine.

168,657 papers · 148 categories

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200399599798 · Jun 202019922001200920172026
48 results for conditional distributions

A new method for learning conditional distributions using ODEs and neural networks.

problem Learning conditional distributions efficiently and accurately.
method Conditional Föllmer Flow, discretized with Euler's method, using nonparametric velocity estimation.
result Effective approximation of target conditional distributions, with convergence results for Wasserstein-2 distance.

A new method compresses conditional distributions of labelled data.

problem No existing method directly compresses the conditional distribution of labelled data.
method Introduce Average Maximum Conditional Mean Discrepancy (AMCMD), derive a closed form estimator, and extend Kernel Herding (KH) to Average Conditional Kernel Herding (ACKH).
result Directly compressing conditional distributions outperforms joint distribution compression and greedy selection.

Generative models learn distributions, new method finds inputs matching desired conditional distributions.

problem Designing inputs that produce specific conditional distributions, not just points.
method Conditional Distribution Matching (CDM) and MLGD-F algorithm.
result MLGD-F reliably recovers inputs matching diverse user-specified conditional distributions.

We extend probabilistic programming to handle conditioning on marginal distributions.

problem Conditioning probabilistic programs on marginal distributions of observable variables.
method We define and implement stochastic conditioning, allowing inference in probabilistic programs conditioned on marginal distributions.
result We demonstrate the effectiveness of stochastic conditioning in various real-life scenarios.

CSI method learns conditional distributions by estimating flow equations.

problem Learning conditional distributions in generative models.
method Estimates probability flow equations to transport reference to target distribution.
result Derives explicit expressions for conditional drift and score functions.

Unified probabilistic gradient boosting for entire conditional distribution modeling.

problem Creating accurate probabilistic forecasts from regression tasks.
method Unified probabilistic gradient boosting framework using XGBoost and LightGBM, modeling conditional moments or CDF via Normalizing Flows.
result Achieves state-of-the-art forecast accuracy.

We study 'meta-dependence' in conditional independence tests across different empirical distributions.

problem Understanding the breakdown of conditional independence properties in finite data.
method Geometric intuition and information projections to measure meta-dependence between conditional independences.
result We provide a measure of meta-dependence that consolidates findings across synthetic and real-world data.

Proposes a new method to analyze the distributional effects of treatments.

problem Analyzing the full distributional impact of treatments beyond just the mean.
method Uses kernel conditional mean embeddings and U-statistic regression to investigate the CoDiTE.
result Demonstrates the effectiveness of the proposed method through experiments.

A new method for conditional sampling using paired Wasserstein Autoencoders.

problem Conditional sampling from complex data distributions.
method Derive a novel loss function for Wasserstein Autoencoders to enable sampling from OT-type couplings.
result Learned cost-optimal transport maps and conditional sampling from an OT-type coupling.

The paper examines conditions for linearity in a conditional mean estimator under vector Poisson noise.

problem Conditions for linearity of the conditional mean estimator in vector Poisson noise.
method Analyzes prior distributions and their impact on the conditional mean estimator's linearity.
result The only prior distribution that induces linearity is a product gamma distribution, and non-zero dark current parameter prevents linearity.

This article reviews and compares various methods for estimating conditional distributions.

problem Inference of conditional distributions in statistics.
method Classical nonparametric methods and modern generative models.
result A systematic numerical comparison of methods using performance metrics.

We introduce the Neural Conditioner (NC), a self-supervised machine able to learn about all the conditional distributions of a random vector XX. The NC is a function NC(xa,a,r)NC(x \cdot a, a, r) that leverages adversarial training to match each conditional distribution P(XrXa=xa)P(X_r|X_a=x_a). After training, the NC generalizes to …

2019-02-22abs ↗pdf ↗

New method uses generative models to estimate aleatoric uncertainty without strict data restrictions.

problem Estimating aleatoric uncertainty with limited data distribution or dimensionality.
method Conditional generative models and two metrics for measuring distributional discrepancies.
result Metrics accurately measure conditional distributional discrepancies and train competitive models.

Generative adversarial networks sample unknown high-dimensional conditional distributions.

problem Sampling from unknown high-dimensional conditional distributions with limited data.
method Generative adversarial networks (GAN) for both sampling and distribution inference.
result GAN effectively samples target conditional distribution with minimal impact on sample quality.

Many machine learning tasks, such as learning with invariance and policy evaluation in reinforcement learning, can be characterized as problems of learning from conditional distributions. In such problems, each sample xx itself is associated with a conditional distribution p(zx)p(z|x) represented by samples $\{z_i\}_{i=1…

2016-07-15abs ↗pdf ↗

The paper calculates moments and conditional risks for skewed elliptical distributions.

problem Estimating moments and tail conditional risks for skewed elliptical distributions.
method Derives explicit expressions for multivariate doubly truncated moments and conditional risks for generalized skew-elliptical distributions.
result Explicit formulas for multivariate doubly truncated moments and conditional risks are derived for various skewed elliptical distributions.

DCMA uses generative models to analyze treatment effects on entire outcome distributions.

problem Traditional mediation analysis focuses on summary contrasts, missing complex distributional changes.
method DCMA learns conditional generative models for mediators and outcome, reconstructing interventional distributions via Monte Carlo simulation.
result DCMA captures both summary effects and rich distributional contrasts like energy distance and Wasserstein distance.

DCMA uses generative models to analyze complex treatment effects on outcome distributions.

problem Analyzing complex and nonlinear causal mechanisms through outcome-level summary contrasts.
method Generative learning framework for identifying and estimating treatment effects on entire outcome distributions.
result Reconstructs interventional outcome distributions via Monte Carlo forward simulation, capturing both summary and distributional contrasts.

DRF improves confidence and uncertainty assessment for multivariate conditional distributions.

problem Estimating multivariate conditional distributions with confidence and uncertainty.
method Developed a bootstrap approximation of the asymptotic distribution of DRF to derive inferential tools.
result Asymptotic coverage guarantees for confidence regions and hypothesis testing.

Unified approach for nonparametric regression and conditional distribution learning.

problem Nonparametric regression and conditional distribution learning problems.
method Generative learning framework with deep neural networks to estimate a conditional generator.
result The approach estimates a regression function and a conditional generator simultaneously, providing good prediction intervals.

New CPS model tackles conditional probability shift in machine learning.

problem Discrepancy between source and target distributions in machine learning.
method Conditional Probability Shift Model (CPSM) using multinomial regression and EM algorithm.
result Superior balanced classification accuracy on target data compared to existing methods.

A new framework CyGen models joint distributions using cyclic conditionals.

problem Modeling a joint distribution using only two conditional models without relying on an uninformative prior.
method Developed a general theory for operable equivalence criteria for compatibility and sufficient conditions for determinacy. Proposed CyGen framework and methods to achieve compatibility and determinacy.
result CyGen better fits data and captures more representative features compared to models using an uninformative prior.

MIRA scores assess conditional distribution accuracy using joint samples.

problem Assessing the accuracy of candidate conditional distributions.
method Analytic expression for Mira score based on equal probability mass regions.
result Mira enables Bayesian model comparison by quantifying alignment with true process.

Paper proposes a method for estimating tropical cyclone intensity distribution using deep learning.

problem Lack of full accounting of prediction variability in single-point forecasts.
method Smooth model over target and covariates, logistic transformation for conditional density, case-control sampling approximation.
result Method provides insights into predicted response behavior, improving decision-making and policy.

This work shows that Gaussian is the only prior for optimal linear estimation in L1L^1 loss.

problem Optimal linear estimation of a random variable from noisy observations under L1L^1 fidelity criterion.
method Analyzes the conditions under which the conditional median is a linear estimator and identifies the Gaussian distribution as the only prior that induces linearity.
result Gaussian is the only prior distribution that induces linearity in the conditional median for L1L^1 loss.

The paper addresses score-mismatched diffusion models and zero-shot conditional samplers.

problem Theoretical guarantees for score-mismatched diffusion models in zero-shot conditional sampling.
method Theoretical analysis of score-mismatched diffusion models and zero-shot conditional samplers.
result Theoretical performance guarantees with explicit dimensional dependencies for score-mismatched diffusion samplers.

As inductive inference and machine learning methods in computer science see continued success, researchers are aiming to describe ever more complex probabilistic models and inference algorithms. It is natural to ask whether there is a universal computational procedure for probabilistic inference. We investigate the com…

2010-05-17abs ↗pdf ↗

cCorrGAN approximates conditional correlation matrices using GANs.

problem Learning empirical conditional distributions in the elliptope of correlation matrices.
method Conditional Generative Adversarial Networks (GANs) applied to correlation matrices.
result Validated through Monte Carlo simulations in finance.

We introduce a new model for building conditional generative models in a semi-supervised setting to conditionally generate data given attributes by adapting the GAN framework. The proposed semi-supervised GAN (SS-GAN) model uses a pair of stacked discriminators to learn the marginal distribution of the data, and the co…

2017-08-19abs ↗pdf ↗

This paper uses multivariate probability models to assess financial system risks.

problem Assessing systemic risk in financial systems.
method Computes multivariate conditional probability distributions for elliptical distributions, focusing on Student-t and Normal models.
result Proposes measures of stress impact and systemic risk.

Paper reviews methods for conditional sampling in generative diffusion models.

problem Extending generative diffusion models to sample from conditional distributions.
method Review of existing computational approaches to conditional sampling.
result Highlight key methodologies for constructing conditional generative samplers.

Paper develops a unified framework for measuring differences between conditional distributions.

problem Comparing conditional distributions in a unified and theoretically sound manner.
method Kernel embeddings and conditional maximum mean discrepancy (CMMD) framework.
result Established a coherent framework for measuring divergence between conditional distributions.

CAN learns conditional and interventional distributions from unlabeled data.

problem Learning conditional and interventional distributions from unlabeled data.
method CAN framework with LGN and CIGN architectures, equipped with an intervention mechanism.
result CAN generates both interventional and conditional samples without needing the causal graph.

We realise the first and second Grushin distributions as symmetry reductions of the 3-dimensional Heisenberg distribution and 4-dimensional Engel distribution respectively. Similarly, we realise the Martinet distribution as an alternative symmetry reduction of the Engel distribution. These reductions allow us to derive…

2012-07-23abs ↗pdf ↗

New method uses CDMs to improve CI testing without distributional assumptions.

problem Testing conditional independence when the conditional distribution is unknown.
method Uses conditional diffusion models (CDMs) to approximate XZX|Z and a classifier-based CMI estimator.
result Proposed method performs better than GAN-based CI tests and controls type I and II errors.

Defines conformal submersion with horizontal distribution and provides necessary conditions for its existence.

problem Existence and conditions for conformal submersion with horizontal distribution.
method Definition and analysis of conformal submersion with horizontal distribution, dual connections, and necessary conditions.
result Necessary and sufficient conditions for conformal submersion with horizontal distribution and geodesics.

New model improves multimodal autoencoders by learning joint and conditional distributions.

problem Limitations in recent multimodal autoencoders restrict their quality on complex datasets.
method Proposes a multistage training process with variational inference and Normalizing Flows, leveraging shared modality information.
result Achieves state-of-the-art results on benchmark datasets.

We study likelihood-based methods for distribution regression with deep generative models.

problem Distribution regression with high-dimensional responses concentrated on a low-dimensional manifold.
method Likelihood-based approach using conditional deep generative models.
result Convergence rates for estimating conditional distributions in Hellinger and Wasserstein metrics.