In this same example, these interpretations are then validated by using a different interpretability tool – test set exemplars. This begs the question of why we shouldn’t just use test set exemplars instead.
Doesn’t Olah et al (2017) answer this in the “Why visualize by optimization” section, where they show a bunch of cases where neurons fire on similar test set exemplars, but visualization by optimization appears to reveal that the neurons are actually ‘looking for’ specific aspects of those images?
I buy this value—FV can augment examplars. And I have never heard anyone ever say that FV is just better than examplars. Instead, I have heard the point that FV should be used alongside exemplars. I think these two things make a good case for their value. But I still believe that more rigorous task-based evaluation and less intuition would have made for a much stronger approach than what happened.
Doesn’t Olah et al (2017) answer this in the “Why visualize by optimization” section, where they show a bunch of cases where neurons fire on similar test set exemplars, but visualization by optimization appears to reveal that the neurons are actually ‘looking for’ specific aspects of those images?
I buy this value—FV can augment examplars. And I have never heard anyone ever say that FV is just better than examplars. Instead, I have heard the point that FV should be used alongside exemplars. I think these two things make a good case for their value. But I still believe that more rigorous task-based evaluation and less intuition would have made for a much stronger approach than what happened.