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This work presents a new model and estimation procedure for the illness-death survival data where the hazard functions follow accelerated failure time (AFT) models. A shared frailty variate induces positive dependence among failure times of…

统计方法学 · 统计学 2022-05-10 Lea Kats , Malka Gorfine

We propose an efficient nonparametric strategy for learning a message operator in expectation propagation (EP), which takes as input the set of incoming messages to a factor node, and produces an outgoing message as output. This learned…

Predicting patient survival probabilities based on observed covariates is an important assessment in clinical practice. These patient-specific covariates are often measured over multiple follow-up appointments. It is then of interest to…

统计方法学 · 统计学 2021-11-11 Annabel L. Davies , Anthony C. C. Coolen , Tobias Galla

This article introduces methods for constructing prediction bounds or intervals for the number of future failures from heterogeneous reliability field data. We focus on within-sample prediction where early data from a failure-time process…

统计方法学 · 统计学 2021-04-13 Colin Lewis-Beck , Qinglong Tian , William Q. Meeker

Learning causal effects of a binary exposure on time-to-event endpoints can be challenging because survival times may be partially observed due to censoring and systematically biased due to truncation. In this work, we present debiased…

统计方法学 · 统计学 2024-11-15 Eric R. Morenz , Charles J. Wolock , Marco Carone

This paper introduces a Random Survival Forest (RSF) method for functional data. The focus is specifically on defining a new functional data structure, the Censored Functional Data (CFD), for dealing with temporal observations that are…

统计方法学 · 统计学 2025-02-25 Elvira Romano , Giuseppe Loffredo , Fabrizio Maturo

This paper addresses the challenge of accurately detecting the transition from the warmup phase to the steady state in performance metric time series, which is a critical step for effective benchmarking. The goal is to introduce a method…

性能 · 计算机科学 2025-11-17 Martin Beseda , Vittorio Cortellessa , Daniele Di Pompeo , Luca Traini , Michele Tucci

Modern distributed systems rely on consensus protocols to build a fault-tolerant-core upon which they can build applications. Consensus protocols are correct under a specific failure model, where up to $f$ machines can fail. We argue that…

分布式、并行与集群计算 · 计算机科学 2026-02-13 Reginald Frank , Soujanya Ponnapalli , Octavio Lomeli , Neil Giridharan , Marcos K Aguilera , Natacha Crooks

Quantile regression has been advocated in survival analysis to assess evolving covariate effects. However, challenges arise when the censoring time is not always observed and may be covariate-dependent, particularly in the presence of…

统计理论 · 数学 2010-10-05 Yijian Huang

Many studies employ the analysis of time-to-event data that incorporates competing risks and right censoring. Most methods and software packages are geared towards analyzing data that comes from a continuous failure time distribution.…

统计方法学 · 统计学 2025-06-06 Tomer Meir , Malka Gorfine

We propose a semiparametric model to study the effect of covariates on the distribution of a censored event time while making minimal assumptions about the censoring mechanism. The result is a partially identified model, in the sense that…

统计方法学 · 统计学 2025-03-19 Ilias Willems , Jad Beyhum , Ingrid Van Keilegom

We develop a unified approach for classification and regression support vector machines for data subject to right censoring. We provide finite sample bounds on the generalization error of the algorithm, prove risk consistency for a wide…

机器学习 · 统计学 2013-01-15 Yair Goldberg , Michael R. Kosorok

Analyzing the structure of sampled features from an input data distribution is challenging when constrained by limited measurements in both the number of inputs and features. Traditional approaches often rely on the eigenvalue spectrum of…

机器学习 · 计算机科学 2025-02-11 Chanwoo Chun , SueYeon Chung , Daniel D. Lee

Our objective is to construct well-calibrated prediction sets for a time-to-event outcome subject to right-censoring with guaranteed coverage. Inspired by modern conformal inference, our approach avoids the need for a well-specified…

统计方法学 · 统计学 2026-01-27 Rebecca Farina , Eric J. Tchetgen Tchetgen , Arun Kumar Kuchibhotla

Censored data, where the event time is partially observed, are challenging for survival probability estimation. In this paper, we introduce a novel nonparametric fiducial approach to interval-censored data, including right-censored, current…

统计方法学 · 统计学 2021-11-30 Yifan Cui , Jan Hannig , Michael Kosorok

Estimating the kernel mean in a reproducing kernel Hilbert space is a critical component in many kernel learning algorithms. Given a finite sample, the standard estimate of the target kernel mean is the empirical average. Previous works…

机器学习 · 计算机科学 2021-07-13 Xiaobo Xia , Shuo Shan , Mingming Gong , Nannan Wang , Fei Gao , Haikun Wei , Tongliang Liu

We consider the prediction problem of a continuous-time stochastic process on an entire time-interval in terms of its recent past. The approach we adopt is based on functional kernel nonparametric regression estimation techniques where…

统计理论 · 数学 2007-06-13 Anestis Antoniadis , Efstathios Paparoditis , Theofanis Sapatinas

Survival analysis is a statistical technique used to estimate the time until an event occurs. Although it is applied across a wide range of fields, adjusting for reporting delays under practical constraints remains a significant challenge…

机器学习 · 统计学 2025-10-27 Yuta Shikuri , Hironori Fujisawa

We study inference for censored survival data where some covariates are distorted by some unknown functions of an observable confounding variable in a multiplicative form. Example of this kind of data in medical studies is the common…

统计方法学 · 统计学 2020-06-03 Yanyan Liu , Yuanshan Wu , Jing Zhang , Haibo Zhou

We present a new estimator of the restricted mean survival time in randomized trials where there is right censoring that may depend on treatment and baseline variables. The proposed estimator leverages prognostic baseline variables to…

统计理论 · 数学 2016-08-22 Iván Díaz , Elizabeth Colantuoni , Daniel F. Hanley , Michael Rosenblum