Furthermore, for categorical attributes with an inherent hierarchical structure, like ZIP codes, the preprocessing scheme can directly leverage the hierarchy by blending statistics at the various levels of aggregation.
https://dl.acm.org/doi/10.1145/507533.507538
We would need to select the right columns, and properly add another argument, that takes a formula that describes the hierarchy
https://dl.acm.org/doi/10.1145/507533.507538
We would need to select the right columns, and properly add another argument, that takes a formula that describes the hierarchy