手法を比較

	ResNeXt	DenseNet
分野	深層学習	深層学習
系統	Machine learning	Machine learning
提唱年	2017	2017
提唱者	Xie, S.; Girshick, R.; Dollár, P.; Tu, Z.; He, K.	Huang, G.; Liu, Z.; van der Maaten, L.; Weinberger, K. Q.
種類	Convolutional neural network with grouped/cardinality-based residual blocks	Dense convolutional neural network (feed-forward dense connectivity)
原典	Xie, S., Girshick, R., Dollár, P., Tu, Z., & He, K. (2017). Aggregated Residual Transformations for Deep Neural Networks. Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 5987–5995.	Huang, G., Liu, Z., van der Maaten, L., & Weinberger, K. Q. (2017). Densely Connected Convolutional Networks. Proceedings of the IEEE Conference on Computer Vision and Pattern Recognition (CVPR), 4700–4708.
別名	ResNeXt, Aggregated Residual Transformations, grouped convolution residual network, cardinality-based ResNet	DenseNet, Dense Convolutional Network, densely connected CNN, DenseNet-121
関連	4	2
概要	ResNeXt is a deep convolutional neural network architecture introduced by Xie, Girshick, Dollár, Tu, and He at CVPR 2017. It extends the residual network (ResNet) design by introducing a new architectural dimension called cardinality — the number of independent, parallel transformation paths within each residual block — enabling higher accuracy with fewer parameters and a simpler, more uniform design than its predecessors.	DenseNet (Densely Connected Convolutional Network), introduced by Huang, Liu, van der Maaten, and Weinberger at CVPR 2017 (Best Paper Award), connects every layer to every subsequent layer within a dense block so that each layer receives the concatenated feature maps of all preceding layers — maximising feature reuse, strengthening gradient flow, and achieving competitive accuracy with substantially fewer parameters than comparable architectures such as ResNet.