Describe the process of Bootstrapping and its applications in model evaluation.

  • Repeated sampling with replacement for bias reduction
  • Repeated sampling with replacement for variance reduction
  • Repeated sampling with replacement to estimate statistics and evaluate models
  • Repeated sampling without replacement for model validation
Bootstrapping involves repeated sampling with replacement to estimate statistics and evaluate models. By creating numerous "bootstrap samples," it allows the calculation of standard errors, confidence intervals, and other statistical properties, even with a small dataset. It's valuable for model evaluation, hypothesis testing, and providing insight into the estimator's distribution.
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