A fused sparse-group lasso penalty, fitted with an ADMM algorithm, is extended to multi-state Cox models to jointly select and link covariate effects across transitions.
Structured fusion lasso penalized multi-state models
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Variable selection via fused sparse-group lasso penalized multi-state models incorporating molecular data
A fused sparse-group lasso penalty, fitted with an ADMM algorithm, is extended to multi-state Cox models to jointly select and link covariate effects across transitions.