Training 1-bit deep convolutional neural networks (DCNNs) is one of the most challenging problems in computer vision, because it is much easier to get trapped into local minima than conventional DCNNs. The reason lies in that the binarized kernels and activations of 1-bit DCNNs cause a significant accuracy loss and training inefficiency. To address this problem, we propose Genetic Binary Convolutional Networks (GBCNs) to optimize 1-bit DCNNs, by introducing a new balanced Genetic Algorithm (BGA) to improve the representational ability in an end-to-end framework. The BGA method is proposed to modify the binary process of GBCNs to alleviate the local minima problem, which can significantly improve the performance of 1-bit DCNNs. We develop a new BGA module that is generic and flexible, and can be easily incorporated into existing DCNNs, such asWideResNets and ResNets. Extensive experiments on the object classification tasks (CIFAR, ImageNet) validate the effectiveness of the proposed method. To highlight, our method shows strong generalization on the object recognition task, i.e., face recognition, facial and person re-identification.

提出了基因二元卷积神经网络（Genetic Binary Convolutional Networks，GBCN），并利用一种新的平衡遗传算法（balanced Genetic Algorithm，BGA）解决了1位深度卷积神经网络（DCNNs）中存在的局部极小值问题，该方法在目标分类任务（CIFAR，ImageNet）上得到了验证，表现出强大的泛化性能。

GBCNs: 基因二进制卷积网络用于增强1-bit DCNNs性能