At first, I’ve thought that:

– few-shot learning is when there is only few training examples for each label available;

– one-shot learning is when there might be only one training example for a label;

– zero-shot learning is when some labels won’t be available in training sample.

But, for example, in Siamese Neural Networks for One-shot Image Recognition training process requires more than one training example for label in set, which would be few-shot learning, and in the test time you can choose the class which was not represented, which would be zero-shot learning.

It confuses me and I will greatly appreciate if someone helps me.