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Except this isn't how statistical methods on vectors and matrices work. In an ML data set, the value "Mike" may actually be one-hot encoded to one of 500 colum
by tomnipotent 7y ago
Except this isn't how statistical methods on vectors and matrices work.
In an ML data set, the value "Mike" may actually be one-hot encoded to one of 500 columns (one column value is 1, everything else is 0) - because you have 500 different names in your dataset, so each VALUE gets its own column.
It's a very different problem/solution than NULLs in databases.
- Retric 7y agoI was referring to jacques_chester’s comment. You’re bringing up a related and still well explored topic as this situation is very common. https://link.springer.com/article/10.1007%2Fs00180-013-0468-8 https://link.springer.com/article/10.1007%2Fs00180-013-0468-...