中文
相关论文

相关论文: Functional regression with randomized signatures: …

200 篇论文

In many countries life expectancy gains have been substantially higher than predicted by even recent forecasts. This is primarily due to increasing rates of improvement in old-age mortality not captured by existing models. In this paper we…

统计方法学 · 统计学 2021-09-07 Søren Fiig Jarner

Maximum approximate Bernstein likelihood estimates of the baseline density function and the regression coefficients in the proportional hazard regression models based on interval-censored event time data are proposed. This results in not…

统计方法学 · 统计学 2020-12-25 Zhong Guan

We propose a novel deep learning approach to nonparametric statistical inference for the conditional hazard function of survival time with right-censored data. We use a deep neural network (DNN) to approximate the logarithm of a conditional…

统计方法学 · 统计学 2024-10-24 Wen Su , Kin-Yat Liu , Guosheng Yin , Jian Huang , Xingqiu Zhao

The EU Solvency II directive recommends insurance companies to pay more attention to the risk management methods. The sense of risk management is the ability to quantify risk and apply methods that reduce uncertainty. In life insurance, the…

计量经济学 · 经济学 2018-04-02 Kamil Jodź

Feature engineering plays an important role in the success of a machine learning model. Most of the effort in training a model goes into data preparation and choosing the right representation. In this paper, we propose a robust feature…

机器学习 · 计算机科学 2018-04-27 Namita Lokare , Jorge Silva , Ilknur Kaynar Kabul

The fractional birth and the fractional death processes are more desirable in practice than their classical counterparts as they naturally provide greater flexibility in modeling growing and decreasing systems. In this paper, we propose…

统计理论 · 数学 2014-06-30 Dexter O. Cahoy , Federico Polito

Deep Neural Networks (DNN) applications are increasingly becoming a part of our everyday life, from medical applications to autonomous cars. Traditional validation of DNN relies on accuracy measures, however, the existence of adversarial…

机器学习 · 计算机科学 2021-12-22 Florian Tambon , Giulio Antoniol , Foutse Khomh

Remaining useful life (RUL) prediction is crucial for maintaining modern industrial systems, where equipment reliability and operational safety are paramount. Traditional methods, based on small-scale deep learning or physical/statistical…

机器学习 · 计算机科学 2024-10-07 Yan Chen , Cheng Liu

A current strand of research in high-dimensional statistics deals with robustifying the available methodology with respect to deviations from the pervasive light-tail assumptions. In this paper we consider a linear mean regression model…

统计理论 · 数学 2025-02-06 Philipp Hermann , Hajo Holzmann

Human mortality data sets can be expressed as multiway data arrays, the dimensions of which correspond to categories by which mortality rates are reported, such as age, sex, country and year. Regression models for such data typically assume…

统计方法学 · 统计学 2014-04-15 Bailey K. Fosdick , Peter D. Hoff

Accurately estimating the remaining useful life (RUL) of industrial machinery is beneficial in many real-world applications. Estimation techniques have mainly utilized linear models or neural network based approaches with a focus on short…

机器学习 · 计算机科学 2018-12-11 Lahiru Jayasinghe , Tharaka Samarasinghe , Chau Yuen , Jenny Chen Ni Low , Shuzhi Sam Ge

A hybrid prognostic model based on convolutional neural networks (CNN) and long short-term memory (LSTM) is proposed to predict the laser remaining useful life (RUL). The experimental results show that it outperforms the conventional…

信号处理 · 电气工程与系统科学 2022-03-24 Khouloud Abdelli , Helmut Griesser , Stephan Pachnicke

Remaining Useful Life (RUL) of a component or a system is defined as the length from the current time to the end of the useful life. Accurate RUL estimation plays a crucial role in Predictive Maintenance applications. Traditional regression…

机器学习 · 计算机科学 2024-12-23 Muthukumar G , Jyosna Philip

One of the main problems studied in statistics is the fitting of models. Ideally, we would like to explain a large dataset with as few parameters as possible. There have been numerous attempts at automatizing this process. Most notably, the…

统计计算 · 统计学 2018-09-24 Marc Härkönen , Tomonari Sei , Yoshihiro Hirose

Worldwide, many millions of people die suddenly and unexpectedly each year, either with or without a prior history of cardiovascular disease. Such events are sparse (once in a lifetime), many victims will not have had prior investigations…

机器学习 · 计算机科学 2023-09-06 Yola Jones , Fani Deligianni , Jeff Dalton , Pierpaolo Pellicori , John G F Cleland

Age-specific mortality improvements are non-uniform, neither across ages nor across time. We propose a two-step procedure to estimate the rates of mortality improvement (RMI) in age-specific death rates (ASDR) at ages 85 and above for ten…

应用统计 · 统计学 2023-03-30 Trifon I. Missov , Silvio C. Patricio , Francisco Villavicencio

Remaining Useful Life (RUL) of an equipment or one of its components is defined as the time left until the equipment or component reaches its end of useful life. Accurate RUL estimation is exceptionally beneficial to Predictive Maintenance,…

机器学习 · 计算机科学 2019-04-16 Qiyao Wang , Shuai Zheng , Ahmed Farahat , Susumu Serita , Chetan Gupta

The aim of this paper is to propose a realistic and operational model to quantify the systematic risk of mortality included in an engagement of retirement. The model presented is built on the basis of model of Lee-Carter. The stochastic…

综合金融 · 定量金融 2010-01-13 Frédéric Planchet , Marc Juillard

The intensive care units (ICUs) are responsible for generating a wealth of useful data in the form of Electronic Health Record (EHR). This data allows for the development of a prediction tool with perfect knowledge backing. We aimed to…

机器学习 · 计算机科学 2020-07-28 Saumil Maheshwari , Rohit Verma , Anupam Shukla , Ritu Tiwari , Rishu Garg

This study explores the potential of zero-shot time series forecasting, an innovative approach leveraging pre-trained foundation models, to forecast mortality rates without task-specific fine-tuning. We evaluate two state-of-the-art…

机器学习 · 计算机科学 2025-05-21 Gabor Petnehazi , Laith Al Shaggah , Jozsef Gall , Bernadett Aradi