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Death has long been overlooked in evolutionary algorithms. Recent research has shown that death (when applied properly) can benefit the overall fitness of a population and can outperform sub-sections of a population that are "immortal" when…

神经与进化计算 · 计算机科学 2021-09-29 Micah Burkhardt , Roman V. Yampolskiy

Robust estimation has played an important role in statistical and machine learning. However, its applications to functional linear regression are still under-developed. In this paper, we focus on Huber's loss with a diverging robustness…

统计理论 · 数学 2024-09-18 Ling Peng , Xiaohui Liu , Heng Lian

Continuous-time multi-state survival models can be used to describe health-related processes over time. In the presence of interval-censored times for transitions between the living states, the likelihood is constructed using transition…

统计方法学 · 统计学 2017-03-24 Robson J. M. Machado , Ardo van den Hout

In this paper, we provide a comprehensive cross-country validation study of compositional mortality modeling and forecasting methods. Thus, we consider two one-to-one transformations: the cumulative distribution function and the centered…

应用统计 · 统计学 2026-03-20 Han Lin Shang , Steven Haberman

We address the problem of forecasting high-dimensional functional time series through a two-fold dimension reduction procedure. The difficulty of forecasting high-dimensional functional time series lies in the curse of dimensionality. In…

统计方法学 · 统计学 2018-10-03 Yuan Gao , Han Lin Shang , Yanrong Yang

We introduce an additive stochastic mortality model which allows joint modelling and forecasting of underlying death causes. Parameter families for mortality trends can be chosen freely. As model settings become high dimensional, Markov…

风险管理 · 定量金融 2017-05-02 Jonas Hirz , Uwe Schmock , Pavel V. Shevchenko

Many approaches for estimation of Remaining Useful Life (RUL) of a machine, using its operational sensor data, make assumptions about how a system degrades or a fault evolves, e.g., exponential degradation. However, in many domains…

Monitoring the health status of patients and predicting mortality in advance is vital for providing patients with timely care and treatment. Massive medical signs in electronic health records (EHR) are fitted into advanced machine learning…

机器学习 · 计算机科学 2023-11-07 Xuesong Ye , Jun Wu , Chengjie Mou , Weinan Dai

Prognostics or Remaining Useful Life (RUL) Estimation from multi-sensor time series data is useful to enable condition-based maintenance and ensure high operational availability of equipment. We propose a novel deep learning based approach…

机器学习 · 计算机科学 2021-03-05 Vishnu TV , Diksha , Pankaj Malhotra , Lovekesh Vig , Gautam Shroff

This paper introduces a new objective measure for assessing treatment response in asthmatic patients using computed tomography (CT) imaging data. For each patient, CT scans were obtained before and after one year of monoclonal antibody…

Regression discontinuity design (RDD) is widely adopted for causal inference under intervention determined by a continuous variable. While one is interested in treatment effect heterogeneity by subgroups in many applications, RDD typically…

统计方法学 · 统计学 2024-11-11 Shonosuke Sugasawa , Takuya Ishihara , Daisuke Kurisu

We introduce random survival forests, a random forests method for the analysis of right-censored survival data. New survival splitting rules for growing survival trees are introduced, as is a new missing data algorithm for imputing missing…

应用统计 · 统计学 2008-11-12 Hemant Ishwaran , Udaya B. Kogalur , Eugene H. Blackstone , Michael S. Lauer

The use of cumulative incidence functions for characterizing the risk of one type of event in the presence of others has become increasingly popular over the past decade. The problems of modeling, estimation and inference have been treated…

统计方法学 · 统计学 2020-11-16 Youngjoo Cho , Annette M. Molinaro , Chen Hu , Robert L. Strawderman

\noindent The modal age at death is an increasingly used measure for understanding longevity and mortality patterns. However, existing estimation methods focus on point estimates, overlooking the inherent variability and uncertainty in…

应用统计 · 统计学 2025-10-07 Silvio C. Patricio , Paola Vazquez-Castillo

Late-life depression (LLD) is a highly prevalent mood disorder occurring in older adults and is frequently accompanied by cognitive impairment (CI). Studies have shown that LLD may increase the risk of Alzheimer's disease (AD). However, the…

图像与视频处理 · 电气工程与系统科学 2022-12-27 Lintao Zhang , Lihong Wang , Minhui Yu , Rong Wu , David C. Steffens , Guy G. Potter , Mingxia Liu

We introduce a Generalized LU-Factorization (\textbf{GLU}) for low-rank matrix approximation. We relate this to past approaches and extensively analyze its approximation properties. The established deterministic guarantees are combined with…

数值分析 · 数学 2019-10-02 James Demmel , Laura Grigori , Alexander Rusciano

Logistic regression is commonly used for modeling dichotomous outcomes. In the classical setting, where the number of observations is much larger than the number of parameters, properties of the maximum likelihood estimator in logistic…

机器学习 · 统计学 2019-11-14 Fariborz Salehi , Ehsan Abbasi , Babak Hassibi

The use of artificial intelligence in clinical care to improve decision support systems is increasing. This is not surprising since, by its very nature, the practice of medicine consists of making decisions based on observations from…

定量方法 · 定量生物学 2019-05-03 Isaac Mativo , Yelena Yesha , Michael Grasso , Tim Oates , Qian Zhu

This paper presents an application of Generalized Estimating Equations (GEE) for analyzing age-specific death rates (ASDRs), constituting a longitudinal dataset with repeated measurements over time. GEE models, known for their robustness in…

应用统计 · 统计学 2024-01-24 Reza Dastranj , Martin Kolar

The health state assessment and remaining useful life (RUL) estimation play very important roles in prognostics and health management (PHM), owing to their abilities to reduce the maintenance and improve the safety of machines or equipment.…

机器学习 · 计算机科学 2018-09-25 Rong-Jing Bao , Hai-Jun Rong , Zhi-Xin Yang , Badong Chen