CondiS
CondiS imputes censored survival times by sampling from their conditional distribution to enable the use of complete datasets in machine-learning-based survival analysis.
Key Features:
- Censoring Imputation: Imputes censored survival times by drawing from their conditional distribution given the observed portion of each subject's data.
- Incorporation of Covariates (CondiS-X): Extends imputation by conditioning on additional covariate information to refine imputed survival times.
- Prediction for New Patients: Produces predicted survival times for newly provided patient records using the same conditional imputation framework.
Scientific Applications:
- Survival Analysis with Censoring: Enables analysis of datasets containing right-censored survival times by providing complete-event time estimates.
- Machine-Learning Model Training: Facilitates training and evaluation of machine-learning prognostic models on datasets after imputation of censored values.
- Personalized Prognosis: Supports individualized survival time prediction by incorporating patient-specific covariates into the imputation process.
Methodology:
Imputation of censored survival times by sampling from their conditional distribution given observed data, with optional conditioning on covariates (CondiS-X) to generate predictions for new patients.
Topics
Details
- License:
- Not licensed
- Cost:
- Free of charge
- Tool Type:
- web application
- Operating Systems:
- Mac, Linux, Windows
- Programming Languages:
- R
- Added:
- 9/30/2022
- Last Updated:
- 11/24/2024
Operations
Data Inputs & Outputs
Imputation
Inputs
Outputs
Publications
Wang Y, Flowers CR, Li Z, Huang X. CondiS web app: imputation of censored lifetimes for machine learning-based survival analysis. Bioinformatics. 2022;38(17):4252-4254. doi:10.1093/bioinformatics/btac461. PMID:35801895. PMCID:PMC9438949.
PMID: 35801895
PMCID: PMC9438949
Funding: - Cancer Prevention and Research Institute of Texas: RR190079
- NIH: R03CA270725