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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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64127191254 · May 202619922001200920182026
48 results for Heart Failure Risk Assessment

Embeddings from EHR diagnoses and procedures predict heart failure risk.

problem Challenges in feature engineering from EHR data due to high dimensionality and heterogeneity.
method Used GloVe to learn word embeddings for diagnoses and procedures in UK EHR data.
result Embeddings enable robust disease risk prediction models for congestive heart failure.

Proposes a hybrid deep learning network for better heart failure survival prediction.

problem Improving survival prediction in heart failure patients.
method Joint analysis of cardiac motion features and clinical risk factors using a hybrid deep learning network.
result Optimal integration of clinical risk factors into deep prediction networks.

Paper explores using RL to teach ML models what is interpretable to non-technical users.

problem Lack of empirical evidence on what is interpretable to non-technical users.
method Train a neural network to provide risk assessments, then design a RL-based DSS to learn from user interactions.
result ML experts cannot accurately predict what will maximize user confidence in ML models.

Framework assesses treatment effects by risk groups in observational studies.

problem Evaluating treatment effects in observational studies with risk stratification.
method Five-step framework for risk-based assessment of treatment effect heterogeneity.
result Low-risk patients received negligible absolute benefits, while high-risk patients had pronounced effects.

Study predicts heart failure patient survival using stacked ensemble ML.

problem Predicting survival of heart failure patients.
method Collect and analyze patient data, apply SMOTE, use K-Means, Fuzzy C-Means clustering, Random Forest, XGBoost, Decision Tree, and propose a stacked ensemble model.
result Supervised ML algorithms outperform unsupervised models, achieving high accuracy and F1 score.

Paper proposes a new method for uncertainty estimation in medical data.

problem Difficulty in assigning confidence to deep learning model predictions in healthcare.
method Combines deep Bayesian learning with deep kernel learning for uncertainty estimation.
result Demonstrates improved uncertainty estimation compared to Gaussian processes and deep Bayesian neural networks.

The paper investigates causal relationships in heart failure prediction using machine learning.

problem Understanding the causal relationships between clinical variables and heart failure.
method Proposes a new computational framework for causal structure discovery (CSD) of mixed-type clinical variables for binary disease outcomes.
result Feature importance from nonlinear classifiers strongly correlates with causal strength of variables, but not differentiating cause and effect.

The study uses transfer learning to compare surgical outcomes across racial/ethnic subgroups.

problem Difficulty in comparing surgical outcomes due to racial/ethnic and geographic differences.
method Causal inference framework and transfer learning to incorporate data from multiple populations.
result Racial and ethnic differences in surgical outcomes are found, with non-Hispanic Black patients experiencing wide variability.

Bayesian network framework assesses urban risks across multiple domains.

problem Complex interdependencies in urban systems.
method Bayesian Belief Networks (BBNs) with DAGs, Hill-Climbing search, BIC, K2 scoring, synthetic data, SMOTE.
result Identifies key risk factors and quantifies likelihood of cascading failures.

In this paper, we propose a new deep feature selection method based on deep architecture. Our method uses stacked auto-encoders for feature representation in higher-level abstraction. We developed and applied a novel feature learning approach to a specific precision medicine problem, which focuses on assessing and prio…

2017-04-20abs ↗pdf ↗

This paper develops a machine learning model to assess credit risk in UAE commercial banks.

problem Lack of precision in conventional credit rating tools for accurate credit risk prediction.
method Constructs a credit risk assessment model using Linear Discriminant Analysis.
result Demonstrates improved accuracy in predicting good and bad creditors compared to conventional methods.

Proposes a framework for personalized treatment recommendations using observational data.

problem Estimating patient-level treatment effects from observational data.
method Integrates existing methods for learning patient-level causal models.
result Improves patient outcomes in heart failure patients with acute kidney injury.

The electronic health record (EHR) provides an unprecedented opportunity to build actionable tools to support physicians at the point of care. In this paper, we investigate survival analysis in the context of EHR data. We introduce deep survival analysis, a hierarchical generative approach to survival analysis. It depa…

2016-08-06abs ↗pdf ↗

Study uses machine learning and survival analysis to predict CKD progression.

problem Early detection and management of CKD to reduce ESRD risk.
method Combines machine learning and classical statistical models to identify novel CKD progression predictors.
result Deep learning models outperform other methods in predicting CKD progression.

New approach combines invariance and information bottleneck for OOD generalization.

problem OOD generalization failures in classification tasks.
method Revisit linear regression tasks, prove information bottleneck constraint necessary, propose combined approach.
result Combined invariance and information bottleneck approach improves OOD generalization.

After the shocking series of bankruptcies started in 2008, the public does not trust anymore the classical methods of assessing business risks. The global economic severe downturn caused demand for both developed and emerging economies' exports to drop and the crisis became truly global. However, this current crisis of…

2010-07-12abs ↗pdf ↗

Study constructs balanced datasets for seismic failure prediction.

problem Imbalanced datasets limit machine learning performance in seismic failure prediction.
method Framework with three steps: GMF identification, probability density estimation, and sample transformation.
result Framework improves machine learning performance in seismic failure mode prediction.

Heart disease is the leading cause of death, and experts estimate that approximately half of all heart attacks and strokes occur in people who have not been flagged as "at risk." Thus, there is an urgent need to improve the accuracy of heart disease diagnosis. To this end, we investigate the potential of using data ana…

2018-08-22abs ↗pdf ↗

We developed a new approach for the analysis of physiological time series. An iterative convolution filter is used to decompose the time series into various components. Statistics of these components are extracted as features to characterize the mechanisms underlying the time series. Motivated by the studies that show …

2015-04-23abs ↗pdf ↗

New framework assesses extreme errors in machine learning models.

problem Current validation methods fail to quantify extreme errors in high-stakes domains.
method Uses Extreme Value Theory (EVT) to estimate worst-case failures.
result Establishes EVT as a fundamental tool for assessing model reliability.

Study applies Gai-Kapadia framework to global equity markets to assess systemic risk and default cascades.

problem Assessing systemic risk and default cascades in global equity markets.
method Used Gai-Kapadia framework, 20-asset network, Monte Carlo simulations, and deterministic propagation analysis.
result High clustering among Brazilian assets leads to localized contagion, while developed markets show resilience.

Study builds machine learning models to predict ICU patients' one-year mortality.

problem Improving mortality prediction accuracy in ICU patients with heart disease.
method Developed and evaluated various machine learning models using MIMIC-III database.
result Best models achieved 85.12% prediction accuracy and AUC of 0.901.

Neural networks outperform logistic regression for predicting HF readmission.

problem Predicting 30-day all-cause readmission in heart failure patients.
method Used a large administrative claims dataset to compare neural network models (RNNCRF) with logistic regression models (LASSO) for predicting readmission.
result RNNCRF model achieved best performance with 0.642 AUC, while logistic regression with LASSO had equal performance.

This paper uses MIS to identify key financial institutions with minimal risk contagion.

problem Mitigating systemic risk during extreme financial events.
method Applying extreme value theory and MIS from graph theory to identify diversified portfolios.
result Identified a subset of institutions with minimal extremal dependence for diversified portfolios.

Study extends Gai-Kapadia framework to assess systemic risk in global equity markets.

problem Systemic risk and default cascades in global equity markets.
method Network analysis, threshold filtering, Monte Carlo simulations, tail risk assessment.
result System exhibits strong global resilience with negligible probability of large-scale failure.