Decaf: A deep convolutional activation feature for generic visual recognition

J Donahue, Y Jia, O Vinyals… - International …, 2014 - proceedings.mlr.press
International conference on machine learning, 2014proceedings.mlr.press
We evaluate whether features extracted from the activation of a deep convolutional network
trained in a fully supervised fashion on a large, fixed set of object recognition tasks can be re-
purposed to novel generic tasks. Our generic tasks may differ significantly from the originally
trained tasks and there may be insufficient labeled or unlabeled data to conventionally train
or adapt a deep architecture to the new tasks. We investigate and visualize the semantic
clustering of deep convolutional features with respect to a variety of such tasks, including …
Abstract
We evaluate whether features extracted from the activation of a deep convolutional network trained in a fully supervised fashion on a large, fixed set of object recognition tasks can be re-purposed to novel generic tasks. Our generic tasks may differ significantly from the originally trained tasks and there may be insufficient labeled or unlabeled data to conventionally train or adapt a deep architecture to the new tasks. We investigate and visualize the semantic clustering of deep convolutional features with respect to a variety of such tasks, including scene recognition, domain adaptation, and fine-grained recognition challenges. We compare the efficacy of relying on various network levels to define a fixed feature, and report novel results that significantly outperform the state-of-the-art on several important vision challenges. We are releasing DeCAF, an open-source implementation of these deep convolutional activation features, along with all associated network parameters to enable vision researchers to be able to conduct experimentation with deep representations across a range of visual concept learning paradigms.
proceedings.mlr.press
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