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DeCAF: A Deep Convolutional Activation Feature for …

DeCAF: A deep Convolutional Activation Featurefor generic Visual RecognitionJeff Donahue , Yangqing Jia , Oriol Vinyals, Judy Hoffman, Ning Zhang, Eric Tzeng, Trevor Berkeley & ICSI, Berkeley, CA, USAA bstractWe evaluate whether features extracted fromthe Activation of a deep Convolutional networktrained in a fully supervised fashion on a large,fixed set of object recognition tasks can be re-purposed to novel generic tasks. Our generictasks may differ significantly from the originallytrained tasks and there may be insufficient la-beled or unlabeled data to conventionally train oradapt a deep architecture to the new tasks. We in-vestigate and visualize the semantic clustering ofdeep Convolutional features with respect to a va-riety of such tasks, including scene recognition,domain adaptation, and fine-grained recognitionchallenges. We compare the efficacy of relyingon various network levels to define a fixed fea-ture, and report novel results that significantlyoutperform the state-of-the-art on several impor-tant vision challenges.

Introduction Discovery of effective representations that capture salient semantics for a given task is a key goal of perceptual ... numpy/scipy for efficient numerical computation, with. DeCAF: A Deep Convolutional Activation Feature for Generic Visual Recognition (a) …

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