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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.

169,341 papers · 148 categories

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3106199291,238 · Jun 202019922001200920182026
48 results for Probabilistic methods

Paper introduces a new probabilistic model for class-specific discriminant analysis.

problem Lack of multi-modal structure consideration in existing class-specific methods.
method Formulates a probabilistic model that incorporates multi-modal negative class structure.
result Proposed model can be directly used for class-specific probabilistic classification.

Probabilistic method combines space and time uncertainties in PDEs.

problem Separate treatment of space and time in PDE solvers obscures interactions and error quantification.
method Gaussian process interpretation of finite difference methods interacting with probabilistic ODE solvers.
result Joint quantification of space- and time-uncertainty possible without sacrificing ODE solver performance.

Proposes a method to reconcile count time series forecasts.

problem No formal framework for probabilistic reconciliation of count time series.
method Generalizes Bayes' rule for reconciling real-valued and count variables.
result Improves forecast accuracy for count variables compared to Gaussian reconciliation.

Birch automates probabilistic modeling using a Turing-complete language.

problem Automating the matching of probabilistic models with inference methods.
method Formally describes models as programs, revealing structure and form dynamically.
result Probabilistic programming languages can tailor inference methods based on model structure and form.

New method extracts time series data structure for probabilistic programming.

problem Building probabilistic programs from time series data with unknown structure.
method Find descriptive covariance structure in nonparametric Gaussian process regression.
result Descriptive covariance structure efficiently derives accurate probabilistic program.

PGBM creates probabilistic predictions efficiently.

problem Creating probabilistic predictions for large-scale data.
method Approximates leaf weights as random variables, learns moments via stochastic tree ensemble update equations.
result PGBM offers significant speedup and accuracy improvements over existing methods.

New method reduces infinite variance in probabilistic programs with rejection sampling.

problem Infinite variance in naive importance sampling for programs with rejection sampling.
method Developed a new amortized importance sampling estimator with finite variance proof.
result Empirically demonstrated efficiency and correctness compared to existing alternatives.

The paper extends calibration to sets of probabilistic classifiers, finding many ensembles are poorly calibrated.

problem Evaluating the validity of epistemic uncertainty in sets of probabilistic classifiers.
method Proposed a novel nonparametric calibration test for sets of probabilistic classifiers.
result Ensembles of deep neural networks are often not well calibrated.

This work connects LLE, factor analysis, and probabilistic PCA through a stochastic perspective.

problem Exploring the theoretical connection between LLE, factor analysis, and probabilistic PCA.
method Solving the stochastic linear reconstruction of LLE using expectation maximization.
result LLE, factor analysis, and probabilistic PCA are shown to be connected through a stochastic perspective.

UM trains a neural network to approximate marginal distributions in probabilistic programs.

problem High computational cost and lack of theoretical guarantees in inference methods for probabilistic programs.
method Combining samples from a probabilistic program prior with an augmentation method to train a neural network for any conditional marginal distribution.
result UM trains a single neural network to approximate any conditional marginal distribution, amortizing inference costs.

The paper shows how to learn the geometric structure of data manifolds using probabilistic methods.

problem Learning the differential geometric structure of data manifolds embedded in high-dimensional spaces.
method Probabilistic methods with proper regularizations to recover the geometric structure.
result Probabilistic methods can recover the differential geometric structure of data manifolds.

We present a new algorithm for approximate inference in probabilistic programs, based on a stochastic gradient for variational programs. This method is efficient without restrictions on the probabilistic program; it is particularly practical for distributions which are not analytically tractable, including highly struc…

2013-01-07abs ↗pdf ↗

This paper tackles Bayesian system identification with probabilistic numerical methods.

problem Accurately modeling nonlinear dynamic systems from noisy data.
method Probabilistic Sequential Monte Carlo (SMC) combined with probabilistic numerical integration.
result Efficient identification of latent states and system parameters from noisy measurements.

ForGAN uses GANs for probabilistic forecasting of sensory data.

problem Challenges in traditional forecasting methods and difficulties in probabilistic methods.
method ForGAN combines GANs with conditional generative adversarial networks to learn data distributions and generate probabilistic forecasts.
result ForGAN outperforms traditional regression methods in probabilistic forecasting of sensory data.

A new probabilistic model for CCA reduces data complexity without vectorization.

problem Reducing data complexity for two-dimensional canonical correlation analysis.
method A latent variable model for matrix-variate data with two variational inference approaches.
result The proposed methods outperform existing probabilistic and non-probabilistic CCA approaches.

New probabilistic linear multistep methods derived from Gaussian processes.

problem Solving ordinary differential equations with probabilistic approaches.
method Adams-Bashforth and Adams-Moulton family of linear multistep methods derived from Gaussian process framework.
result Probabilistic versions of deterministic methods converge to the exact solution and local truncation error.

Discusses new probabilistic morphisms and geometric methods in machine and statistical learning.

problem Addressing challenges in statistical, machine, and manifold learning.
method Introduces category of probabilistic morphisms and geometric methods.
result New insights and applications in various learning fields.

Probabilistic programming allows specification of probabilistic models in a declarative manner. Recently, several new software systems and languages for probabilistic programming have been developed on the basis of newly developed and improved methods for approximate inference in probabilistic models. In this contribut…

2013-06-02abs ↗pdf ↗

Paper introduces probabilistic forecasting methods for cryptocurrency volatility.

problem Inadequate point forecasting methods for capturing full spectrum of volatility outcomes.
method Combines multiple base models (statistical and machine learning) to estimate conditional quantiles of cryptocurrency realized variance.
result QRS method outperforms sophisticated alternatives for Bitcoin volatility forecasting.

MPF method improves parameter estimation in probabilistic models.

problem Difficulty in fitting probabilistic models due to intractable partition function.
method Minimum Probability Flow (MPF) method for parameter estimation.
result MPF outperforms existing techniques in convergence time and accuracy.

New approach combines geometric and probabilistic methods to estimate manifold dimension in high-dimensional data.

problem Estimating the dimension of manifolds in high-dimensional data.
method Combines a modified box-counting algorithm (geometric) and a new probabilistic method (nearest neighbor distance analysis).
result The combined method is robust, fast, and effective in estimating manifold dimension.

Calibrated probabilistic solvers improve accuracy of ODE estimates.

problem Uncertainty in probabilistic ODE solutions is not well-calibrated for adaptive step sizes.
method Introduce and assess several calibration methods for probabilistic ODE solvers.
result Calibration methods interact efficiently with adaptive step-size selection, improving posteriors.

Proposes a probabilistic method for generating semantically-aware adversarial examples.

problem Generating adversarial examples that are difficult for humans to detect while preserving semantics.
method Embeds subjective understanding of semantics as a distribution into adversarial example generation.
result Achieves higher success rates in circumventing adversarial defense mechanisms.

Paper introduces CGPMs for probabilistic data analysis.

problem Difficulty in applying, combining, and comparing different probabilistic techniques.
method Composable generative population models (CGPMs) that extend graphical models and can describe and compose various probabilistic data analysis techniques.
result CGPMs enable efficient and accurate probabilistic data analysis tasks.

Paper quantifies uncertainty in probabilistic models using Gaussian Processes.

problem Assessing reliability of probabilistic machine learning predictions.
method Systematic framework for estimating epistemic and aleatoric uncertainty, using Gaussian Processes and Monte Carlo sampling.
result Effective approach for quantifying prediction confidence in probabilistic models.

Survey on probabilistic models and variational inference in deep RL.

problem Understanding and applying probabilistic models and variational inference in deep reinforcement learning.
method Detailed derivations and comparisons of recent advances in deep reinforcement learning.
result Comprehensive tutorial on probabilistic graphical models and variational inference in deep reinforcement learning.

A framework assesses the trustworthiness of probabilistic classifiers using local calibration error.

problem Assessing the trustworthiness of probabilistic classifiers beyond traditional metrics.
method I-trustworthy framework linking local calibration to trustworthiness; Kernel Local Calibration Error (KLCE) method for hypothesis testing.
result The effectiveness of the proposed test statistic demonstrated through simulated and real-world datasets.

Adaptive volatility method improves probabilistic financial forecasting.

problem Probabilistic forecasting in financial markets.
method Adapts classical time-varying volatility models with online stochastic optimization.
result Ranked 5th in M6 financial forecasting competition.

Develops inference combinators for probabilistic programs using neural networks.

problem Creating efficient proposals for probabilistic program inference.
method Inference combinators using neural network parameterization of proposals.
result Correct by construction variational methods tailored to specific models.