scikit-learn/scikit-learn — Issue #558: Score function for multi label classifiers
Author: amueller
Created: 2012-01-16 10:21:20+00:00
State: open

As far as I can tell, these are completely missing.
I feel this makes the multi label classifiers much less useful.

I am not sure what common measure there are but two that seem natural to me would be Hamming loss (how many classes
per example were correct?) and 0-1 loss (for how many examples were all classes correct).

At least these are two losses that are commonly used in structured prediction afaik.