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You asked: What are your experiences with survival analysis?
The next step is then to build predictive models using e.g. parametric survival analysis or proportional hazards regression. If you are a real modeling freak and up for a challenge, you can experiment with spline based methods as well. We found those to perform particularly well in both credit risk modeling and churn prediction, although as always, the price you pay for this is a complex to understand non-linear model.
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