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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.

169,051 papers · 148 categories

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2805608391,119 · Jun 202019922001200920182026
48 results for binned data

Histogram binning method proven with guarantees without splitting data.

problem Proving theoretical guarantees for histogram binning without sample splitting.
method Using Markov property of order statistics to prove calibration guarantees for original method.
result Proves histogram binning has strong calibration guarantees without sample splitting.

Isotonic regression binning affects calibration statistics of machine learning models.

problem Isotonic regression binning introduces aleatoric uncertainty in calibration statistics.
method Calibration error statistics are recalibrated using isotonic regression, which produces stratified uncertainties.
result Stratified uncertainties lead to significant differences in bin-based calibration statistics.

New methods improve estimation of nonhomogeneous Poisson processes from limited data.

problem Estimating nonhomogeneous Poisson processes from limited data.
method Formulated as a learning generalization problem, proposed adaptive and data-driven binning methods.
result Improved estimation of nonhomogeneous Poisson processes with limited data.

Method infers causal direction using data discretization and complexity calculation.

problem Determining causal direction between continuous variables.
method MDL Binning technique for data discretization and complexity calculation.
result Captures the shape of the data to determine causal direction.

Improved binning technique boosts nUV measure performance.

problem Improving the performance of the nUV measure in real applications.
method Introduced the nUV measure, provided theoretical optimal binning techniques, and proposed algorithms for approximate solutions.
result Approximate binning techniques show 4-13% increase in AUC scores with statistical significance.

A method for non-parametric conditional distribution estimation using CRPS-optimal binning.

problem Non-parametric conditional distribution estimation.
method Partitioning covariate-sorted observations into bins to minimize LOO-CRPS, selecting K by K-fold cross-validation of test CRPS.
result Produces narrower prediction intervals with near-nominal coverage compared to split-conformal competitors.

This study examines how discretization improves neural forecasting models.

problem Improving predictive performance of neural forecasting models.
method Empirical investigation of data binning techniques on various neural forecasting architectures.
result Data binning almost always improves forecasting accuracy, but the type of binning is less important.

Study three types of uncertainty quantification for binary classification without distributional assumptions.

problem Uncertainty quantification for binary classification in a distribution-free setting.
method Established theorems connecting calibration, confidence intervals, and prediction sets for score-based classifiers.
result Distribution-free calibration is only possible using scoring functions that partition feature space into countably many sets.

Improved kernel ridge regression for large datasets using weighted random binning.

problem Efficiently approximating kernel matrices for large-scale datasets.
method Introduced weighted random binning features for locality sensitive hashing.
result Weighted random binning features generate Gaussian processes of any desired smoothness.

The objective of this work is to take advantage of deep neural networks in order to make next day crime count predictions in a fine-grain city partition. We make predictions using Chicago and Portland crime data, which is augmented with additional datasets covering weather, census data, and public transportation. The c…

2018-06-05abs ↗pdf ↗

Paper tackles noisy, biased object detection in cluttered environments.

problem Noisy and biased object detection in unknown cluttered environments.
method Incremental active semi-supervised learning (IASSL) combining batch-based active learning and bin-based semi-supervised learning.
result Superior performance compared to state-of-the-art object detection methods.

A new DP algorithm improves privacy in hashing and sampling for search and learning.

problem Improving privacy in hashing and sampling for large-scale applications.
method Combines differential privacy with one permutation hashing and bin-wise consistent weighted sampling.
result Proposes DP-OPH and DP-BCWS algorithms that enhance privacy while maintaining utility.

This paper improves multi-class calibration methods using mutual information maximization-based binning.

problem Calibration of deep neural network predictions, especially for small prior classes.
method I-Max concept for binning, shared class-wise calibration strategy.
result Improves multi-class ranking and calibration performance using a small calibration set.

This paper introduces minimum-risk recalibration for probabilistic classifiers, improving their reliability and accuracy.

problem Improving the reliability and accuracy of probabilistic classifiers.
method Minimum-risk recalibration within the MSE decomposition framework, analyzing UMB method and label shift adaptation.
result The optimal number of bins for UMB scales with n1/3n^{1/3}, resulting in a risk bound of approximately O(n2/3)O(n^{-2/3}).

A new method improves quantile regression for high-dimensional data.

problem Handling heteroscedastic, multimodal, or skewed data in quantile regression.
method Dynamic prototypes-based probability density estimation with conformalized high-density quantile regression.
result Enhanced prediction regions with valid coverage guarantees and scalability to higher dimensions.

New bin-wise scaling methods improve prediction uncertainty calibration for machine learning.

problem Improving prediction uncertainty calibration for machine learning regression.
method Adaptations of Binwise Variance Scaling (BVS) with alternative loss functions and feature-based binning.
result Improved adaptivity and consistency in prediction uncertainty calibration.

In subgroup discovery, also known as supervised pattern mining, discovering high quality one-dimensional subgroups and refinements of these is a crucial task. For nominal attributes, this is relatively straightforward, as we can consider individual attribute values as binary features. For numerical attributes, the task…

2015-10-28abs ↗pdf ↗

Efficient random binning features improve kernel methods for large datasets.

problem Kernel methods' quadratic complexity limits their scalability to large datasets.
method Proposes and analyzes Random Binning (RB) features, showing faster convergence and parallelizability.
result RB features achieve faster convergence rates and parallelizability advantages compared to other random features.

Solves online 3D bin packing with deep reinforcement learning under constraints.

problem Challenges of packing items immediately without information and constraints.
method Constrained deep reinforcement learning (DRL) with feasibility predictor.
result Significantly outperforms state-of-the-art methods in online 3D bin packing.

HFNO enhances interpretability of turbulent flows through parallel wavenumber bin processing.

problem Opaque inner workings of Fourier Neural Operators (FNOs) hinder physical interpretability.
method Introduces HFNO, a novel FNO-based architecture that processes wavenumber bins in parallel, enhancing interpretability.
result HFNO decomposes turbulent flows across various scales, enabling increased interpretability and multiscale modeling.

New method uses machine learning to estimate sensitivity without binning.

problem Estimating sensitivity of high-dimensional data sets without binning.
method Combines machine-learning classification with likelihood-based inference tests using Kernel Density Estimators.
result Significance estimation is not sensitive to non-smooth probability distributions.

OmniFold simultaneously unfolds all observables using machine learning.

problem Traditional unfolding methods are limited to individual observables and do not incorporate all detector information.
method OmniFold iteratively reweights a simulated dataset using machine learning to handle all available information.
result OmniFold enables the simultaneous measurement of all observables, including those not yet invented.

In this paper we perform a statistical analysis over the returns and relative prices of the CAC 4040 and the S\&P 500500 with the purpose of analyzing the intra-day seasonalities of single and cross-sectional stock dynamics. In order to do that, we characterized the dynamics of a stock (or a set of stocks) by the evolut…

2015-01-21abs ↗pdf ↗

The study evaluates different probability models for uncertainty visualization using entropy calculations.

problem Choosing the right probability model affects memory use, run time, and accuracy in uncertainty visualization.
method Entropy calculation on ensemble data to compare various probability models (uniform, Gaussian, histogram, quantile).
result Models matching the ensemble data distribution have the lowest entropy, indicating better accuracy.

Given discrete time observations over a fixed time interval, we study a nonparametric Bayesian approach to estimation of the volatility coefficient of a stochastic differential equation. We postulate a histogram-type prior on the volatility with piecewise constant realisations on bins forming a partition of the time in…

2018-01-30abs ↗pdf ↗

Paper introduces RPWithPrior for efficient label differential privacy in regression.

problem Protecting user privacy in regression tasks with minimal accuracy loss.
method Modeling responses as continuous random variables, avoiding discretization; estimating optimal intervals for randomized responses.
result RPWithPrior algorithm guarantees ε-label differential privacy and outperforms existing methods.