Non-Spatial-Data Dominant Generalization
Collect task-relevant data
Perform attribute-oriented induction on non-spatial attributes.
- Generalization threshold indicates the stopping point for the generalization.
Pointers to spatial objects are collected and put alongwith the generalized non-spatial data.
Neighboring areas with same generalized value for the non-spatial attributes are merged together using “adjacent_to” spatial predicate.
Complexity is O(N lg N) where N = # of spatial objects.