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• W3204692337 abstract "Abstract Motivation Survival analysis using gene expression profiles plays a crucial role in the interpretation of clinical research and assessment of disease therapy programs. Several prediction models have been developed to explore the relationship between patients’ covariates and survival. However, the high-dimensional genomic features limit the prediction performance of the survival model. Thus, an accurate and reliable prediction model is necessary for survival analysis using high-dimensional genomic data. Results In this study, we proposed an improved survival prediction model based on XGBoost framework called XGBLC, which used Lasso-Cox to enhance the ability to analyze high-dimensional genomic data. The novel first- and second-order gradient statistics of Lasso-Cox were defined to construct the loss function of XGBLC. We extensively tested our XGBLC algorithm on both simulated and real-world datasets, and estimated the performance of models with 5-fold cross-validation. Based on 20 cancer datasets from The Cancer Genome Atlas (TCGA), XGBLC outperforms five state-of-the-art survival methods in terms of C-index, Brier score and AUC. The results show that XGBLC still keeps good accuracy and robustness by comparing the performance on the simulated datasets with different scales. The developed prediction model would be beneficial for physicians to understand the effects of patient’s genomic characteristics on survival and make personalized treatment decisions. Availability and implementation The implementation of XGBLC algorithm based on R language is available at: https://github.com/lab319/XGBLC Supplementary information Supplementary data are available at Bioinformatics online." @default.
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• W3204692337 date "2021-09-29" @default.
• W3204692337 modified "2023-10-15" @default.
• W3204692337 title "XGBLC: an improved survival prediction model based on XGBoost" @default.
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• W3204692337 doi "https://doi.org/10.1093/bioinformatics/btab675" @default.
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