Research
On-device research index

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.

169,181 papers · 148 categories

Trend · papers per month

0.3%0.5%0.8%0.7% · Mar 202619922001200920182026
48 results for Miscalibration

Paper challenges the usefulness of cardinal scores without simplifying assumptions on miscalibration.

problem Handling arbitrary miscalibrations in ratings.
method Designing estimators for cardinal scores with arbitrary miscalibrations, consistent with induced ranking.
result Strict and uniform outperformance of estimators over all possible ranking-based estimators.

Bayesian consensus improves accuracy of forecasts from miscalibrated sources.

problem Aggregating predictions from miscalibrated and noisy sources.
method Bayesian approach to adjust for bias and noise, using hierarchical models.
result Bayesian consensus estimator is unbiased and more efficient than alternatives.

ECCIT improves conditional independence tests by calibrating for miscalibration.

problem Inaccurate frequentist guarantees in CITs, especially in small samples and misspecified models.
method Empirically Calibrated Conditional Independence Tests (ECCIT) that optimize and correct for miscalibration.
result ECCIT achieves valid FDR with higher power than existing calibration strategies.

The paper studies entropy calibration in language models and finds that miscalibration improves slowly with scale.

problem The problem is whether language model entropy calibration improves with scale and if it's possible to calibrate without reducing log loss.
method The authors study a simplified theoretical setting to characterize miscalibration scaling behavior and measure it empirically in language models ranging from 0.5B to 70B parameters.
result The observed scaling behavior of miscalibration is similar to theoretical predictions, indicating slow improvement with scale. The authors also prove theoretically that it is possible to reduce entropy while preserving log loss if access to a black box predicting future entropy is available.

Language models are miscalibrated, leading to overestimated entropy rates and memory usage.

problem Miscalibration of language models leading to overestimated entropy rates and memory usage.
method Calibration-based approach to measure discrepancies and improve models.
result State-of-the-art language models are miscalibrated, causing overestimated entropy rates and memory usage.

This paper calibrates uncertainty in dropout variational inference models.

problem Uncertainty in variational inference with dropout is poorly calibrated.
method Temperature scaling is extended to dropout variational inference.
result Temperature scaling reduces miscalibration of uncertainty.

Calibrated models can lead to miscalibrated aggregations in strategic interactions.

problem Miscalibration in aggregated predictions from multiple calibrated models.
method Analysis of strategic interactions between calibrated predictors, proving conditions for miscalibration and comparing VCG and Brier-score aggregation methods.
result VCG aggregation method outperforms Brier-score in strategic settings, providing robustness and comparable accuracy.

A new method eliminates miscalibration in Gaussian process models for dynamical systems.

problem Miscalibration and overestimation of transition function parameters in Gaussian process models.
method Explicitly models the dependence between state trajectories and Gaussian process posterior, eliminating factorization.
result Better predictive performance and more calibrated estimates of the transition function.

Hallucinations in models are mislinked estimates, not errors.

problem Hallucinations in generative models as failures to link estimates to plausible causes.
method Formalized hallucinations, showed even optimal estimators hallucinate, provided a general lower bound on hallucinate rate, reframed hallucination as structural misalignment, and experimentally supported theory.
result Hallucinations are structural misalignments between loss minimization and human-acceptable outputs, leading to estimation errors.

Proposes h-calibration for improving miscalibrated probability outputs of neural networks.

problem Improving reliability of probability outputs from neural networks.
method Probabilistic learning framework for calibration, including a simple yet effective post-hoc algorithm.
result Significantly better performance than traditional methods, validated by experiments.

New method calibrates confidence for object detection and segmentation models.

problem Intrinsically miscalibrated confidence estimates in object detection and segmentation models.
method Introduces multivariate confidence calibration for object detection and segmentation, extending ECE.
result Improves calibration, positively impacts segmentation quality.

Plots show miscalibration directly as slopes of secant lines.

problem Detecting discrepancies between probabilistic predictions and actual outcomes.
method Cumulative differences between observed and expected values displayed as slopes of secant lines.
result Directly shows miscalibration without binning or kernel density estimation.

New method calibrates CNN-GP models for better uncertainty quantification.

problem Current CNN-GP models are miscalibrated, leading to unreliable uncertainty estimates.
method Proposes a novel combination of CNNs and GPs to improve calibration.
result Significantly outperforms previous approaches on calibration while maintaining state-of-the-art performance.

LLMs overestimate stock returns and are less accurate at predicting extreme outcomes.

problem Behavioral biases in LLMs' stock return forecasts.
method Comparison of LLM forecasts with crowd-sourced estimates and historical data.
result LLMs overestimate stock returns and are less accurate at predicting extreme outcomes.

Study improves calibration of NMT models, especially EOS and attention uncertainty.

problem Improper functioning of beam-search inference due to miscalibrated NMT models.
method Design and apply recalibration methods based on EOS and attention uncertainty signals.
result Improved accuracy and better sequence-level calibration of NMT models.

Paper improves predictive distributions for rare events using a simple framework.

problem Local miscalibration of predictive distributions for rare events.
method Semiparametric diagnostic transport maps to correct tail probabilities.
result Semiparametric maps improve predictions for severe weather hazards.

Generative models often misrepresent class frequencies; this paper calibrates them.

problem Miscalibration of class frequencies in generative models.
method Formulated as constrained optimization, using surrogate objectives to approximate constraints.
result Significant reduction in calibration error across various models and applications.

Proposes a new method to improve Bayesian computation accuracy using flexible classification.

problem Bayesian computations accuracy check using rank-based simulation-based calibration has limitations.
method Replaces marginal rank test with a flexible classification approach that learns from data.
result Improves statistical power and provides an interpretable divergence measure of miscalibration.

Develops a method to continuously audit black-box conditional quantile forecasts.

problem Continuous monitoring of black-box forecasts under changing data streams and regimes.
method Distribution-free and game-theoretic testing framework for non-i.i.d. losses.
result Derives finite-time detection guarantees for miscalibrated forecasts based on features.

Paper proposes a deep RL method for hedging variable annuities, outperforming misspecified models.

problem Model miscalibration in variable annuity contracts with GMMB and GMDB riders.
method Two-phase deep reinforcement learning approach: training phase in a controlled environment, online learning phase in real market.
result Trained reinforcement learning agent hedges equally well as correct Delta in training phase and outperforms misspecified Deltas.

A new method combines VI and IS to improve Bayesian inference accuracy.

problem Bayesian inference often underestimates posterior tails, leading to miscalibration and degeneracy.
method Proposes a novel combination of optimization and sampling techniques using the forward KL divergence.
result The method guarantees asymptotic consistency and fast convergence to optimal IS and variational approximations.

This paper calibrates Gaussian process predictive distributions for Bayesian optimization to improve sampling decisions.

problem Lower-tail miscalibration in GP predictive distributions affects BO sampling decisions.
method Introduces goal-oriented calibration for GP predictive distributions below a threshold tt.
result Post-hoc method tcGP improves lower-tail calibration and BO performance.

This paper investigates uncertainty calibration in multimodal large language models.

problem Challenges in properly calibrating uncertainty in multimodal large language models.
method Investigation of representative MLLMs across various scenarios, including visual fine-tuning and multimodal training.
result MLLMs tend to give answers rather than admit uncertainty, but this self-assessment improves with proper prompt adjustments.

New method improves calibration in multi-output probabilistic models.

problem Challenges in achieving multivariate calibration in multi-output regression.
method General regularization framework to enforce multivariate calibration during training for arbitrary pre-rank functions.
result Significant improvement in calibration across all pre-rank functions without sacrificing predictive accuracy.

Improves forecast calibration for extreme events using modified loss functions.

problem Improperly specified models do not issue calibrated forecasts for extreme events.
method Adapting loss functions based on weighted scoring rules and tail miscalibration regularization.
result Calibrated forecasts for extreme wind speeds can be improved by suitable adaptations to the loss function during model training.

Neural Calibration improves reliability of probabilistic predictions by learning from field-aware information.

problem Miscalibration of probabilistic predictions in machine learning models.
method Neural Calibration, a simple yet powerful post-hoc calibration method that learns from field-aware information.
result Neural Calibration significantly improves reliability in metrics like negative log-likelihood, Brier score, and AUC.

New method balances deep covariates for causal inference using adversarial training.

problem Balancing covariates for causal inference from complex data.
method Adversarial training of a weighting and discriminator network.
result Effective handling of complex relationships and image confounders.

DRO-NPE improves neural posterior estimation by reducing overconfidence and overfitting.

problem Overconfident and unreliable posteriors in simulation-based inference with limited simulation budgets.
method Distributionally robust approach using Wasserstein ambiguity set and KL-based metrics.
result Consistently improves coverage and calibration across benchmark tasks.

CP4SBI improves the calibration of credible sets in SBI models.

problem Inaccurate credible sets in SBI models lead to underestimation of true parameters.
method Develops a local conformal calibration framework for SBI models.
result Improves the quality of uncertainty quantification for neural posterior estimators.

A new method calibrates Gaussian processes for more accurate uncertainty estimates.

problem Uncertainty estimates from Gaussian processes are often miscalibrated in practice.
method A novel calibration approach using different hyperparameters to generate more accurate predictive quantiles.
result The method yields tighter predictive quantiles and is more flexible than existing approaches.

Proposes a new method to calibrate uncertainty estimates in deep learning models.

problem Poorly calibrated uncertainty estimates in deep learning models.
method Repurposes heteroscedastic regression as a surrogate for calibration.
result Eliminates the need for recalibration and regularizes the training process.

This work evaluates and improves calibration of probabilistic classifiers.

problem Ensuring probabilistic classifiers output consistent probabilities with empirical frequencies.
method Develops a theoretical framework grounded in probability theory and proposes new evaluation techniques.
result Refined interpretations and new ways to quantify and visualize miscalibration.

Randomized predictions ensure fair and accurate individual calibration in machine learning.

problem Systematic bias in typical calibration methods leads to unfair predictions for certain subgroups.
method Randomization of predictions to enforce individual calibration, trading off bias with variance.
result Randomized regression functions are more calibrated for arbitrary subgroups and achieve higher utility.

Unified Uncertainty Calibration improves AI predictions by combining different types of uncertainty.

problem AI classifiers struggle with uncertainty, leading to miscalibrated predictions and poor performance.
method Unified Uncertainty Calibration (U2C) combines aleatoric and epistemic uncertainties to improve prediction quality.
result U2C outperforms traditional reject-or-classify methods across various ImageNet benchmarks.

The paper decomposes probabilistic scores into reliability, uncertainty, and information loss.

problem Understanding the reliability and uncertainty of probabilistic predictions.
method Developed decomposition identities for proper losses, quantifying reliability, residual uncertainty, and information gain.
result A three-term identity for classification scores, revealing miscalibration, grouping term, and feature-level uncertainty.

A new metric CKCE improves model calibration comparison.

problem Comparing the calibration of probabilistic models is challenging.
method CKCE based on Hilbert-Schmidt norm of conditional mean operators.
result CKCE provides more consistent and robust model calibration comparisons.

New method calibrates classifier probabilities with guaranteed coverage.

problem Inaccurate probability estimates by classifiers in high-risk applications.
method Adaptive temperature scaling algorithm for conformal prediction.
result Improves calibration error measures and standard metrics across various tasks.