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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.

169,291 papers · 148 categories

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13263851 · Nov 201919922001200920182026
48 results for record ages

The study uses demographical data to predict health conditions.

problem Predicting health conditions based on patient demographics and symptoms.
method Analyzing Electronic Health Records (EHR) from Brazil to identify age-related clusters of health conditions.
result Age of patients significantly influences the likelihood of certain health conditions.

The study of record statistics of correlated series is gaining momentum. In this work, we study the records statistics of the time series of select stock market data and the geometric random walk, primarily through simulations. We show that the distribution of the age of records is a power law with the exponent αα lyi…

2014-06-24abs ↗pdf ↗

Researchers analyze record statistics in correlated random walks and Lévy flights.

problem Understanding record statistics in correlated time series.
method Review of random walk models and Lévy flights, focusing on number of records and record ages.
result Effects of correlations on record statistics were observed and analyzed.

Study reveals gender and age biases in drug interactions, impacting public health costs.

problem Gender and age biases in drug interactions leading to adverse reactions and increased costs.
method City-wide longitudinal analysis of electronic health records (EHR) from Blumenau, Brazil.
result Women have a 60% increased risk of drug interactions compared to men, and this increases to 90% for major adverse drug reactions.

We investigate the statistics of records in a random sequence {xB(0)=0,xB(1),,xB(n)=xB(0)=0}\{x_B(0)=0,x_B(1),\cdots, x_B(n)=x_B(0)=0\} of nn time steps. The sequence xB(k)x_B(k)'s represents the position at step kk of a random walk `bridge' of nn steps that starts and ends at the origin. At each step, the increment of the position is a random ju…

2015-05-22abs ↗pdf ↗

Improved sex and age-specific model for Parkinson's diagnosis.

problem Accurate diagnosis of Parkinson's disease for better patient care.
method Sex-specific and age-dependent handwriting classification model.
result Significantly improved accuracy (83.75% for females, 79.55% for older age group) compared to generalized model.

BIGMACS aligns multiple ocean sediment cores using Bayesian inference and Gaussian process regression.

problem Aligning and synchronizing ages from different ocean sediment cores using multiple proxies.
method BIGMACS uses Bayesian inference and Gaussian process regression to align and integrate age proxies.
result Constructs a new Deep Northeastern Atlantic stack and age models for additional cores.

Study identifies three sub-phenotypes of AKI with different severity.

problem Tackles the heterogeneity of AKI to improve targeted interventions.
method Used a memory network-based deep learning approach on EHR data.
result Identified three distinct sub-phenotypes of AKI with varying severity.

We study the statistics of records of a one-dimensional random walk of n steps, starting from the origin, and in presence of a constant bias c. At each time-step the walker makes a random jump of length ηdrawn from a continuous distribution f(η) which is symmetric around a constant drift c. We focus in particular on th…

2012-06-29abs ↗pdf ↗

Wearable smart suit tracks infant movements with high accuracy.

problem Early detection of atypical motor development in infants.
method Developed a multi-sensor smart suit for data collection, trained a deep CNN algorithm for automatic posture and movement classification.
result Setup achieves human equivalent accuracy in infant posture and movement classification.

Paper proposes RL for efficient MCI diagnosis from dialogue data.

problem Efficiently diagnose MCI from conversational data with minimal interaction.
method Reinforcement learning framework trained on clinical trial transcripts.
result Significantly outperforms supervised learning approaches with minimal conversation turns.

Proposes a new Sliced-Wasserstein distance for covariance matrices in M/EEG signals.

problem Efficiently dealing with distributions of covariance matrices in M/EEG multivariate time series.
method Defines a Sliced-Wasserstein distance for symmetric positive definite matrices and applies it to brain-age prediction and Brain Computer Interface applications.
result Demonstrates computational efficiency and strong theoretical guarantees for the proposed distance.

Deep learning classifies OCT images of normal vs AMD with high accuracy.

problem Automated classification of OCT images for diagnosing Age-related Macular Degeneration.
method Automated extraction of OCT images linked to clinical data, training a deep neural network.
result Deep learning achieved high accuracy (92.64% sensitivity, 93.69% specificity) in classifying OCT images of normal vs AMD.

Study uses NMF to analyze multimorbidity patterns in large EHR dataset.

problem Understanding and quantifying multimorbidity patterns over time.
method Non-negative Matrix Factorisation (NMF) for temporal phenotyping.
result Temporal characteristics of disease clusters reveal new multimorbidity patterns.

Method converts age labels into distributions to improve speaker age estimation.

problem Label ambiguity in age labels makes precise speaker age estimation challenging.
method Converts age labels into label distributions and uses label distribution learning.
result Our method outperforms baseline methods by reducing MAE by 10% on a real-world dataset.

Bayesian approach predicts brain-age from EEG sleep states across age.

problem Inconsistent brain-age predictions due to subjective sleep state classification.
method Unified Bayesian Network with Gaussian Mixture Models for EEG sleep states.
result Improved accuracy in brain-age prediction over a wider age range.

Deep learning predicts opioid use disorder risk in patients.

problem Identifying patients at high risk of opioid use disorder.
method Applied LSTM models to analyze electronic health records of opioid users.
result LSTM model outperformed other methods with F1 score of 0.8023 and AUCROC of 0.9369.

Unified model of urban consumer behavior and mobility patterns.

problem Understanding the lifestyles and infrastructure of urban regions.
method Collective matrix factorization for dual view modeling of consumer behavior and mobility.
result Unified model reveals deeper insights into consumer behavior and mobility patterns.

Unified model for age-invariant face recognition with photorealistic face synthesis.

problem Reliable face recognition across ages remains challenging due to significant intra-class variations.
method Unified deep architecture for cross-age face synthesis and recognition, continuous face rejuvenation/aging, disentangled age-invariant face representations.
result Superior performance on CAFR and other cross-age datasets, promising generalizability to unconstrained face recognition.

Deep learning predicts brain age from raw MRI data with high accuracy and reliability.

problem Predicting brain age from neuroimaging data to assess individual differences in brain aging.
method Convolutional Neural Networks (CNN) applied to raw T1-weighted MRI data.
result Brain-predicted age is a reliable and heritable biomarker of brain aging.

The paper uses AI to analyze ECG data, revealing age-related changes and identifying key features.

problem Investigating age-related changes in ECG data to distinguish healthy from disease-related changes.
method Employed deep-learning and tree-based models on raw ECG signals and features from a diverse age group.
result Identified age-related declines in breathing rates and high SDANN values in elderly individuals.

GOPSA optimizes EEG data for cross-site age prediction, improving performance on multiple metrics.

problem Predictive shifts in EEG data from different sites and participants.
method Geodesic Optimization for Predictive Shift Adaptation (GOPSA) on the SPD manifold.
result Significantly higher performance on age prediction metrics compared to state-of-the-art methods.

Paper tackles deconfounding age effects in dementia detection models.

problem Dementia detection models are affected by age, leading to potential non-generalizable accuracies.
method Proposes fair representation learning to learn age-invariant representations.
result Best models compromise accuracy by only 2.56% and 1.54% on clinical datasets.

This work generates synthetic EHRs with privacy guarantees for machine learning tasks.

problem Privacy concerns and heterogeneity in EHR data limit their use in machine learning.
method Generative Adversarial Networks (GANs) with differential privacy (DP) for synthetic data generation.
result Synthetic EHRs maintain performance close to real data, even with DP applied.

Probabilistic programming aids in automatically dating ice cores, reducing manual error and uncertainty.

problem Automatically dating ice cores with high accuracy and capturing uncertainty.
method Probabilistic models and probabilistic programming for automatic inference.
result Demonstrated the use of probabilistic programming for ice core dating, showcasing its benefits and limitations.

Novel U-learning method for predicting continuous outcomes from high-dimensional data.

problem Challenges in making valid inferences on predictions from high-dimensional inputs.
method U-learning via combinatory multi-subsampling for ensemble predictions and confidence intervals.
result Valid inferences on predictions from Lasso and neural networks.