- predicts a numerical value (not a discrete class value)
- same workflow as induction of classification trees
- Prediction math
- Measure of inhomogeneity (not entropy)
- Induced until MSE or SDR is small enough:
- likely to overfit, so post-pruning is also applied
- Large datasets: windowing
- Data types: same numeric approach
- Same process is applied to extract rules from a regression tree
- Data quality issues
