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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.

169,341 papers · 148 categories

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12233546 · Nov 201919922001200920182026
48 results for birth records

Study shows over-sampling biases prediction results on imbalanced datasets.

problem Over-optimistic prediction results on imbalanced data.
method Applying over-sampling before partitioning training and testing sets.
result Over-sampling causes biased results and reduces predictive performance.

Study shows religious fasting affects conception rates in Romania.

problem Understanding how religious fasting affects conception rates in Romania.
method Longitudinal analysis of birth records from 1905 to 2001, econometric models.
result Lent fasting has a more significant effect on conception rates in Eastern Orthodox population.

New prediction rule for preterm births with high sensitivity and specificity.

problem Difficulty in predicting preterm births accurately.
method Automatically generated and selected interpretable prediction rule from high-dimensional data.
result Simplified prediction rule with 10 items has 62.3% sensitivity and 81.5% specificity.

Study birth-death dynamics for sampling Gibbs measures with nonconvex potentials.

problem Sampling Gibbs measures with nonconvex potentials.
method Birth-death dynamics, Kullback-Leibler divergence, χ2χ^2 divergence, kernel-based approximations, ΓΓ-convergence of gradient flows.
result Probability density converges exponentially fast to Gibbs equilibrium measure with a universal rate.

Study estimates personalized effects of maternal PM2.5 exposure on birth weight.

problem Identify critical windows and heterogeneity in maternal PM2.5 exposure effects on birth weight.
method Heterogeneous Distributed Lag Models and Bayesian Additive Regression Trees.
result Evidence of heterogeneity in PM2.5-birth weight relationship, with some dyads showing 3x larger decrease.

New method uses birth-death process and exploration component to accelerate sampling from multimodal distributions.

problem Sampling from multimodal probability distributions efficiently.
method Combines birth-death process and exploration component to accelerate sampling.
result Proves exponential asymptotic convergence under mild assumptions.

Fair quantile regression adjusts estimators to balance subpopulation quantiles.

problem Unfair quantile estimators for subpopulations defined by a protected attribute.
method Proposes a procedure to adjust quantile estimators on heldout samples with protected attribute information.
result Demonstrates n\sqrt{n}-fairness, balancing target quantiles across subpopulations.

FS&P uses birth-death process to ensure global convergence of stochastic conic particle gradient descent.

problem Global optimization of non-convex objective functions over measure space.
method Introduces Fast Spawn\&Prune (FS\&P) combining CPGD with birth-death process.
result First theoretical guarantee of global convergence for discrete-time stochastic algorithms.

New RL algorithm reduces regret in birth-death queueing problems.

problem Efficiency of reinforcement learning in MDPs with large state spaces.
method Modified Ucrl2 algorithm exploiting birth-death structure.
result Regret bound of ildeO(E2AT) ilde{\mathcal{O}}(\sqrt{E_2AT}) independent of state space size.

FUALA improves Federated Learning for EHR data, enhancing model uncertainty.

problem Applying ML to EHR data while maintaining privacy and accuracy.
method FUALA embeds uncertainty in federated learning, using ensembling and averaging.
result FUALA outperforms FedAvg on out-of-distribution data in EHR model predictions.

Classifies and analyzes the stability of black hole event horizon birth points using contact geometry.

problem Classifying and understanding the structural possibilities of black hole crease sets.
method Contact geometry approach, focusing on BigFronts and their Legendrian projections.
result Refined stability discussion of the event horizon birth component and identification of additional components.

Paper proposes scalable method for analyzing multi-omic data.

problem Integrating high-dimensional multi-omic data for cancer subtyping.
method Mixed graphical model approach using Birth-Death MCMC algorithm.
result Our method outperforms LASSO and standard BDMCMC in computational efficiency and model selection accuracy.

Thirty years after the birth of foliations in the 1950's, André Haefliger has introduced a special property satisfied by holonomy pseudogroups of foliations on compact manifolds, called compact generation. Up to now, this is the only general property known about holonomy on compact manifolds. In this article, we give a…

2009-04-29abs ↗pdf ↗

Enhances early risk assessments for pediatric outcomes using contrastive learning.

problem Improving risk assessments in early stages of pediatric development.
method Contrastive multi-modal framework that treats each time window as a distinct modality, training on all available data.
result Consistent improvements in early-stage risk assessments validated on real-world tasks.

Kernel methods identify treatment effects with unobserved confounding using negative controls.

problem Learning causal relationships with unmeasured confounding.
method Kernel ridge regression algorithms for nonparametric treatment effects.
result Uniform consistency and finite sample rates of convergence proved.

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.

Flow Matching for count data improves sample quality and efficiency.

problem Mapping between count distributions across batches or time points in high-dimensional count data.
method count-FM, a flow-matching framework based on a continuous-time birth-death process with local unit jumps.
result count-FM achieves better sample quality than representative baselines while using fewer parameters.

We study the statistics of record-breaking events in daily stock prices of 366 stocks from the Standard and Poors 500 stock index. Both the record events in the daily stock prices themselves and the records in the daily returns are discussed. In both cases we try to describe the record statistics of the stock data with…

2013-07-08abs ↗pdf ↗

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 ↗

Deepr learns features from medical records to predict patient risk.

problem Feature engineering bottleneck in creating predictive systems from medical records.
method Transforms medical records into sequences, uses convolutional neural nets to detect and combine clinical motifs.
result Deepr achieves superior accuracy in predicting patient risk compared to traditional techniques.