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Handle one-hot encoded columns #127

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yoid2000 opened this issue Dec 29, 2023 · 0 comments

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yoid2000 commented Dec 29, 2023

If a set of columns is really one-hot encoding of a single column, then:

The user can tag the columns as such.
SynDiffix transforms the one-hot encoding back into a single column
SynDiffix synthesizes the column
SynDiffix transforms the synthesized column back to the one-hot encoding

Note that #125 must be implemented before this, so that a valid encoding is always created during synthesis.

Obviously if any given symbol is suppressed altogether, then the corresponding one-hot column is all False.

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