This paper studies convolutional networks that require limited computational resources at test time. We develop a new network architecture that performs on par with state-of-the-art convolutional networks, whilst facilitating prediction in two settings: (1) an anytime-prediction setting in which the network's prediction for one example is progressively updated, facilitating the output of a prediction at any time; and (2) a batch computational budget setting in which a fixed amount of computation is available to classify a set of examples that can be spent unevenly across 'easier' and 'harder' examples. Our network architecture uses multi-scale convolutions and progressively growing feature representations, which allows for the training of multiple classifiers at intermediate layers of the network. Experiments on three image-classification datasets demonstrate the efficacy of our architecture, in particular, when measured in terms of classification accuracy as a function of the amount of compute available.

该论文研究了在测试时具有计算资源限制的图像分类问题，并通过训练多个带有不同资源需求的分类器并将其作为早期退出引入单个深度卷积神经网络中以最大程度地重用计算，实现了在任意时间进行预测和分配不同的计算量来分类一组样本，框架显著改善了现有技术在两种情况下的表现。

多尺度稠密网络用于资源高效的图像分类