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Do Unsupervised Approaches Fare Worse in Multi Domain Data?
Unsupervised approaches have fared worse in multi domain, or non constraint, non single domain scenarios than supervised approaches. This is because of this general tendency to favor domain similarity verses similarity. So think of it as creating a version of each training image that tries to remove all the domain specific information and only keep the general features of the object. For the giraffe example, it ends up looking kind of like an edge image, but that was my impression, yea.