Active-learning
n
Explicit measure:
n
For each unlabeled
instance
n
For each class label
n
Add to training data,
n
Train classifier
n
Measure classifier confusion
n
Compute expected confusion
n
Choose instance that yields
lowest expected confusion
n
Implicit measure:
n
Train classifier
n
For each unlabeled
instance
n
Measure prediction
uncertainty
n
Choose instance
with highest
uncertainty
n