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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.

169,181 papers · 148 categories

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48 results for diagnostic classification

A theory for interpreting black-box models in medical diagnostics.

problem Lack of computational formulation for interpreting black-box models in medical diagnostics.
method Defining interpretation as a finite communication between a known model and a black-box model, deriving an algorithm for diagnostic interpretability.
result Demonstrated the feasibility of interpreting black-box models in synthetic supervised classification scenarios.

Optimizes classification algorithms with bounds on error rates.

problem Bounding uncertainties in classifier outputs for diagnostic testing.
method Set-theoretic and probabilistic arguments to derive uniform error bounds.
result Optimal partition minimizes the largest Gershgorin radius of the confusion matrix.

Machine learning classifies colorectal tissue using photoacoustic microscopy.

problem Traditional diagnostic methods for colorectal cancer are limited in detail and painful.
method Machine learning applied to acoustic resolution photoacoustic microscopy.
result Machine learning accurately classified benign and malignant tissue.

GeoTop resolves topological ambiguity in diagnostic imaging using geometric-topological analysis.

problem Topological equivalence between benign and malignant structures in diagnostic images.
method Combines Topological Data Analysis and Lipschitz-Killing Curvatures to resolve ambiguity.
result Achieves 3.6% accuracy improvement and reduces false positives/negatives by 15-18%.

This study connects prevalence and machine learning for diagnostic testing.

problem Uncertainty quantification in machine learning for diagnostic tests.
method Developed a numerical homotopy algorithm to estimate classification boundaries and quantify uncertainty.
result The proposed method stabilizes uncertainty quantification in machine learning for diagnostic tests.

It has been argued that in supervised classification tasks, in practice it may be more sensible to perform model selection with respect to some more focused model selection score, like the supervised (conditional) marginal likelihood, than with respect to the standard marginal likelihood criterion. However, for most Ba…

2013-01-10abs ↗pdf ↗

Enhances projection pursuit tree classifier with visual diagnostics for better multi-class classification.

problem Rigidity of original algorithm limits performance in complex high-dimensional classification problems.
method Allowing more splits and flexible class groupings in projection pursuit computation, and developing visual diagnostics.
result Demonstrates enhanced classifier performs as intended through interactive visual diagnostics.

Paper presents a probabilistic diagnostic model for identifying and treating supervised learning degradation issues.

problem Degradation problems in supervised learning, including class imbalance, overlapping, small-disjuncts, noisy labels, and sparseness.
method Develops a novel probabilistic diagnostic model to identify and treat degradation issues in supervised learning.
result Early and correct diagnosis of degradation issues allows for selecting appropriate remediation treatments and unbiased performance metrics.

Novel nonparametric method for GLMs improves prediction and inference performance.

problem Improving prediction and inference in GLMs with minimal assumptions.
method Combines binary regression and latent variable formulations, extends parametric versions, introduces new classification statistic.
result Uniformly better prediction and inference performance over parametric formulation, especially with asymmetric data.

Deep learning improves AD diagnosis and prognosis from neuroimaging data.

problem Early detection and accurate classification of Alzheimer's disease.
method Deep learning models applied to neuroimaging data for AD diagnosis and prognosis.
result Deep learning models can achieve high accuracy in AD diagnosis and prognosis.

Deep CNN predicts disruptions in fusion plasmas with high accuracy.

problem Predicting plasma events in fusion devices with multi-scale, multi-physics characteristics.
method Deep convolutional neural networks (CNN) with dilated convolutions trained on ECEi diagnostic data.
result Deep CNN achieves an F1-score of ~91% on disruption prediction.

Computer systems for melanoma detection ranked by sensitivity, not specificity.

problem Improving computer systems for melanoma detection in dermoscopic images.
method Analyzed an open challenge in dermoscopic image classification, comparing five measures of diagnostic accuracy.
result Choice of performance measure significantly impacts ranking of computer systems.

Online learning improves dengue fever detection with minimal training data.

problem Improving dengue fever detection accuracy with limited training data.
method Online learning approach for incremental learning from patient symptoms and diagnostic investigations.
result The proposed model effectively identifies patients with high likelihood of dengue disease.

Unified framework detects overfitting in crash classification models.

problem Evaluation metrics fail to detect overfitting in crash classification models.
method Random Matrix Theory and Heavy-Tailed Self-Regularization framework applied to various model types.
result Power-law exponent α reliably distinguishes well-regularized from overfit models.

UBMF tackles fault diagnosis in imbalanced industrial data with enhanced accuracy and adaptability.

problem Fault diagnosis challenges in imbalanced industrial data.
method Integrates four key modules: data perturbation, cross-task feature extraction, uncertainty-based filtering, and Bayesian meta-knowledge integration.
result Achieves an average improvement of 42.22% across ten diagnostic tasks.

Classification outperforms regression in portfolio construction, yielding higher Sharpe ratios.

problem Determining which machine learning approach (classification vs. regression) is more effective for portfolio construction.
method Used stacking ensemble of gradient boosted tree, random forest, and neural network models.
result Classification yields higher Sharpe ratios and economically significant alphas compared to regression.

Visualizes information flow in ML systems for better understanding and analysis.

problem Understanding the flow of information in complex ML systems.
method Proposes a visual approach using Sankey Diagrams to analyze flow of information.
result Demonstrates the effectiveness of the proposed technique in diagnosing model performance.

ML algorithms improve breast cancer detection accuracy.

problem Improving accuracy in breast cancer detection using machine learning.
method Comparison of six ML algorithms (GRU-SVM, Linear Regression, MLP, NN, Softmax Regression, SVM) on the WDBC dataset.
result ML algorithms achieve high accuracy (>90%) in classifying breast cancer.

bioLeak addresses data leakage in biomedical machine learning studies.

problem Data leakage causes optimistic bias in machine learning models for biomedical studies.
method bioLeak provides leakage-aware resampling workflows and model audits in R.
result The package supports various machine learning tasks and can detect leakage mechanisms.

Establishes statistical and computational bounds for influence diagnostics.

problem Identifying influential datapoints or subsets in machine learning models.
method Finite-sample statistical bounds and computational complexity for influence functions and approximate maximum influence perturbations.
result Established statistical and computational guarantees for influence diagnostics.

The article explains how to estimate confusion matrices for classifiers using unlabeled data.

problem Estimating sensitivity and specificity of binary medical diagnostic tests without gold standard tests.
method Modifying diagnostic test solutions to estimate confusion matrices for classifiers on unlabeled data.
result The approach can be used to estimate accuracy statistics for supervised or unsupervised binary classifiers on unlabeled data.

Study integrates causal inference and temporal complexity measures to analyze mental health symptoms.

problem Examining how individual symptom trajectories reveal diagnostic patterns in mental disorders.
method Causal inference, graph analysis, temporal complexity measures, machine learning.
result 91% accuracy in diagnosing symptom dynamics, highlighting disorder-specific causal mechanisms.

Automated suggestions help train technicians diagnose incidents faster.

problem Manual and time-consuming incident diagnosis by train maintenance technicians.
method Developed and deployed a learning machine to suggest diagnostics to technicians.
result The model refines its accuracy through feedback from experts and uses feature engineering.

Paper introduces a diagnostic for approximate inference methods.

problem Estimating errors in probabilistic inference algorithms, especially for approximate methods.
method Repeatedly simulate datasets from the prior and perform inference on each, estimating a symmetric KL-divergence.
result A diagnostic for approximate inference methods can be estimated using symmetric KL-divergence.

Machine learning improves diagnostic test accuracy for bovine tuberculosis.

problem Improving diagnostic test sensitivity for bovine tuberculosis.
method Machine learning to assess risk landscapes and predict infection.
result Test sensitivity improved, detecting 240 more infected herds per year.

GCNs help in diagnosing label scarcity and feature quality on graphs.

problem Understanding when GCNs improve node classification.
method Simulated label scarcity, feature ablation, and per-class analysis.
result GCNs provide largest gains under extreme label scarcity, matching original performance with noisy features, but hurt when homophily is low and features are strong.

Proposes methods for constructing confidence bands and improving ROC curve estimation in SVM models.

problem Improving ROC curve estimation in SVM models for binary classification problems.
method Develops a method for constructing confidence bands for the SVM ROC curve and provides theoretical justification.
result The risk function of the estimated decision rule is uniformly consistent across the weight parameter.

AI predicts medical specialty diagnostic choices from EHR records.

problem Predicting timely medical specialty diagnostic workups for patients.
method Ensemble of feed-forward neural networks trained on EHR data.
result Significantly higher accuracy compared to traditional checklists.

Discriminative neural networks address class imbalance in coronary heart disease risk analysis.

problem Class imbalance in medical test data, especially in binary classification problems.
method Use of discriminative neural networks and contrastive loss with a Siamese network structure.
result The method effectively handles class imbalance, improving predictive models for coronary heart disease risk.

AI triage and diagnostic system performs similarly to human doctors, with safer triage advice.

problem Improving patient care through more reliable symptom checkers.
method Prospective validation study comparing AI system to human doctors.
result AI system's accuracy in identifying conditions comparable to human doctors, with safer triage advice.

Graph-based approach repairs programs from diagnostic feedback.

problem Learning to repair programs from limited labeled data and compiler error messages.
method Introduces program-feedback graph and graph neural network for reasoning, and self-supervised learning with unlabeled programs.
result DrRepair significantly outperforms prior work, achieving high repair rates.

Paper proposes an integrated M&D approach for large multistream data.

problem Inability to progress in monitoring and diagnostics due to high-dimensionality and volume of multistream data.
method Adaptive Principal Component monitoring (APC) and Principal Component Signal Recovery (PCSR).
result The integrated M&D approach enables early detection and streamlined SPC.

Proposes a new framework for evaluating diagnostic models with multiple co-primary endpoints.

problem Overoptimistic assessments of predictive performance in automated medical testing devices.
method Multiple testing framework for diagnostic accuracy studies with co-primary endpoints, using a parametric simultaneous test procedure and Bayesian approach to determine optimal number of models.
result Our approach leads to a better final diagnostic model and increased statistical power.

The paper analyzes convergence in SGD with momentum and proposes a diagnostic test.

problem Detecting convergence in stochastic gradient descent with momentum.
method Analyzes the transient and stationary phases of SGD with momentum, constructs a statistical diagnostic test.
result The proposed diagnostic test effectively detects convergence in the stationary phase of SGD with momentum.