نتایج جستجو برای: Random Survival Forest Model

تعداد نتایج: 2664866  

ژورنال: بیماری های پستان 2021

Introduction: Breast cancer is one of the most common cancers among women worldwide. Patients with cancer may die due to disease progression or other types of events. These different event types are called competing risks. This study aimed to determine the factors affecting the survival of patients with breast cancer using three different approaches: cause-specific hazards regression, subdistri...

Journal: :iranian journal of public health 0
omid hamidi jalal poorolajal maryam farhadian leili tapak

background: kidney transplantation is the best alternative treatment for end-stage renal disease. several studies have been devoted to investigate predisposing factors of graft rejection. however, there is inconsistency between the results. the objective of the present study was to utilize an intuitive and robust approach for variable selection, random survival forests (rsf), and to identify im...

Abbas Bahrampour, Laleh Hassani, Mohammad Reza Baneshi Shideh Rafati

Background:Dialysis is a process for eliminating extra uremic fluids of patients with chronic renal failure. The present study aimed to determine the variables that influence the survival of dialysis patients using random survival forest model (RSFM) in low-dimensional data with low events per variable (EPV). Methods:In this historical cohort study, infor...

Background and objectives: Application of statistical machine learning methods such as ensemble based approaches in survival analysis has been received considerable interest over the past decades in time-to-event data sets. One of these practical methods is survival forests which have been developed in a variety of contexts due to their high precision, non-parametric and non-linear nature. This...

F Gohari Ensaf, GH Roshanaei, M Abbasi, M Safari, Z Berangi,

Background and Objectives: In survival analysis, using the Cox model to determine the effective factors requires the assumptions whose failure of leads to biased results. The aim of this paper was to determine the factors affecting the survival of metastatic gastric cancer patients using the non-parametric method of Randomized Survival Forest (RSF) model and to compare its result with the Cox m...

استواره, مریم, جهانتیغ, فرزاد فیروزی, نجفی, ایرج,

Background: Peritoneal dialysis is one of the most commonly used treatment methods for the patients with end stage renal failure. In recent years, the mortality rate of patients under this treatment has decreased; however, long-term survival is still an important challenge for health systems. The present study aimed to predict the survival of continuous ambulatory peritoneal dialysis patients. ...

Journal: :Knowledge-Based Systems 2019

2017
Justine B. Nasejje Henry Mwambi Keertan Dheda Maia Lesosky

BACKGROUND Random survival forest (RSF) models have been identified as alternative methods to the Cox proportional hazards model in analysing time-to-event data. These methods, however, have been criticised for the bias that results from favouring covariates with many split-points and hence conditional inference forests for time-to-event data have been suggested. Conditional inference forests (...

2016
Lifeng Zhou Hong Wang Qingsong Xu

Recently, rotation forest has been extended to regression and survival analysis problems. However, due to intensive computation incurred by principal component analysis, rotation forest often fails when high-dimensional or big data are confronted. In this study, we extend rotation forest to high dimensional censored time-to-event data analysis by combing random subspace, bagging and rotation fo...

Journal: :IAES International Journal of Artificial Intelligence 2021

In the real world, it is very difficult for fish farmers to select perfect species aquaculture in a specific aquatic environment. The main goal of this research build machine learning that can predict an paper, we have utilized model using random forest (RF). To validate model, used dataset environment 11 different fishes. species, characteristics including pH, temperature, and turbidity. As pe...

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