Transcription of Learning Deep Features for Discriminative Localization
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Learning Deep Features for Discriminative LocalizationBolei Zhou, Aditya Khosla, Agata Lapedriza, Aude Oliva, Antonio TorralbaComputer Science and Artificial Intelligence Laboratory, this work, we revisit the global average pooling layerproposed in [13], and shed light on how it explicitly enablesthe convolutional neural network to have remarkable local-ization ability despite being trained on image-level this technique was previously proposed as a meansfor regularizing training, we find that it actually builds ageneric localizable deep representation that can be appliedto a variety of tasks. Despite the apparent simplicity ofglobal average pooling, we are able to achieve top-5error for object Localization on ILSVRC 2014, which is re-markably close to the top-5 error achieved by a fullysupervised CNN approach. We demonstrate that our net-work is able to localize the Discriminative image regions ona variety of tasks despite not being trained for IntroductionRecent work by Zhouet al[33] has shown that the con-volutional units of various layers of convolutional neuralnetworks (CNNs) actually behave as object detectors de-spite no supervision on the location of the object was pro-vided.
learning with CNN features to localize objects. Oquab et al [15] propose a method for transferring mid-level image representations and show that some object localization can be achieved by evaluating the output of CNNs on multi-ple overlapping patches. However, the authors do not ac-tually evaluate the localization ability. On the other hand,
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