Results 11 to 20 of about 17,216 (258)

Hidden Imputations and the Kaplan-Meier Estimator. [PDF]

open access: yesAm J Epidemiol, 2020
AbstractThe Kaplan-Meier (KM) estimator of the survival function imputes event times for right-censored and left-truncated observations, but these imputations are hidden and therefore sometimes unrecognized by applied health scientists. Using a simple example data set and the redistribution algorithm, we illustrate how imputations are made by the KM ...
Cole SR, Edwards JK, Naimi AI, Muñoz A.
europepmc   +4 more sources

Private and Collaborative Kaplan-Meier Estimators

open access: yesProceedings of the 23rd Workshop on Privacy in the Electronic Society, 2023
Kaplan-Meier estimators are essential tools in survival analysis, capturing the survival behavior of a cohort. Their accuracy improves with large, diverse datasets, encouraging data holders to collaborate for more precise estimations. However, these datasets often contain sensitive individual information, necessitating stringent data protection ...
Shadi Rahimian   +3 more
openaire   +3 more sources

Expert Kaplan--Meier estimation

open access: yes, 2022
The setting of a right-censored random sample subject to contamination is considered. In various fields, expert information is often available and used to overcome the contamination. This paper integrates expert knowledge into the product-limit estimator in two different ways with distinct interpretations.
Bladt, Martin, Furrer, Christian
openaire   +3 more sources

Bootstrapping the Kaplan–Meier estimator on the whole line [PDF]

open access: yesAnnals of the Institute of Statistical Mathematics, 2018
This article is concerned with proving the consistency of Efron's (1981) bootstrap for the Kaplan-Meier estimator on the whole support of a survival function. While other works address the asymptotic Gaussianity of the estimator itself without restricting time (e.g.
openaire   +3 more sources

Kaplan-Meier Estimate on the Plane

open access: yesThe Annals of Statistics, 1988
zbMATH Open Web Interface contents unavailable due to conflicting licenses.
openaire   +3 more sources

Identification of a Novel Prognostic Gene Signature From the Immune Cell Infiltration Landscape of Osteosarcoma

open access: yesFrontiers in Cell and Developmental Biology, 2021
Background: The tumor microenvironment (TME) mainly comprises tumor cells and tumor-infiltrating immune cells mixed with stromal components. Latestresearch hasdisplayed that tumor immune cell infiltration (ICI) is associated with the clinical outcome of ...
Lei Fan, Jingtao Ru, Tao Liu, Chao Ma
doaj   +1 more source

Sensitivity of Survival Analysis Metrics

open access: yesMathematics, 2023
Survival analysis models allow for predicting the probability of an event over time. The specificity of the survival analysis data includes the distribution of events over time and the proportion of classes.
Iulii Vasilev   +2 more
doaj   +1 more source

Meteorological and Agricultural Drought Risk Assessment via Kaplan–Meier Survivability Estimator

open access: yesAgriculture
Dry periods and drought are inherent natural occurrences. However, due to the increasing pressures of global warming and climate change, these events have become more frequent and severe on a global scale.
Cem Polat Cetinkaya, Mert Can Gunacti
doaj   +1 more source

Comparison of nonparametric estimators versus parametric for reliability function

open access: yesIngeniería Investigación y Desarrollo, 2015
One of the main objectives of the area of realiability is to estimate the function of reliability, where traditionally are used non parametric estimators, being more efficient in sample of big sizes.
Javier Ramírez-Montoya
doaj   +1 more source

A Brief Overview of Restricted Mean Survival Time Estimators and Associated Variances

open access: yesStats, 2020
Restricted Mean Survival Time ( R M S T ) experiences a renaissance and is advocated as a model-free, easy to interpret alternative to proportional hazards regression and hazard rates with implication in causal inference. Estimation of R M S T
Szilárd Nemes   +2 more
doaj   +1 more source

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