为解决目前ViT模型无法改变输入补丁大小且输入补丁都是单一尺度信息的缺点,提出了一种基于Transformer的图像分类网络MultiFormer。MultiFormer通过AWS(attention with scale)模块,将每阶段不同尺度输入小补丁嵌入为具有丰富语义信息...为解决目前ViT模型无法改变输入补丁大小且输入补丁都是单一尺度信息的缺点,提出了一种基于Transformer的图像分类网络MultiFormer。MultiFormer通过AWS(attention with scale)模块,将每阶段不同尺度输入小补丁嵌入为具有丰富语义信息的大补丁;通过GLA-P(global-local attention with patch)模块交替捕获局部和全局注意力,在嵌入的同时保留了细粒度和粗粒度特征。设计了MultiFormer-tiny、-small和-base三种不同变体的MultiFormer模型网络,在ImageNet图像分类实验中top-1精度分别达到81.1%、82.2%和83.2%,后两个模型对比同体量的卷积神经网络ResNet-50和ResNet-101提升了3.1%和3.4%;对比同样基于Transformer分类模型ViT,MultiFormer-base在参数和计算量远小于ViT-Base/16模型且无须大量数据预训练前提下提升2.1%。展开更多
History shows that once a nation declines, chances of revival are slim, especially for very small nations. They are either assimilated by other strong nations or shut up deep in the mountains, living a slash and burn ...History shows that once a nation declines, chances of revival are slim, especially for very small nations. They are either assimilated by other strong nations or shut up deep in the mountains, living a slash and burn way of living. Even if there are some ancient nations that have survived and made some progress, they did so with great difficulty. Mesopotamia, Egypt, India, Greece and Persia all are proud of their glorious past and are ambitious for national revival. But the path is not smooth. The Jewish nation, however, is an exception. What is the secret of its survival and seemingly sudden revival？展开更多
文摘为解决目前ViT模型无法改变输入补丁大小且输入补丁都是单一尺度信息的缺点,提出了一种基于Transformer的图像分类网络MultiFormer。MultiFormer通过AWS(attention with scale)模块,将每阶段不同尺度输入小补丁嵌入为具有丰富语义信息的大补丁;通过GLA-P(global-local attention with patch)模块交替捕获局部和全局注意力,在嵌入的同时保留了细粒度和粗粒度特征。设计了MultiFormer-tiny、-small和-base三种不同变体的MultiFormer模型网络,在ImageNet图像分类实验中top-1精度分别达到81.1%、82.2%和83.2%,后两个模型对比同体量的卷积神经网络ResNet-50和ResNet-101提升了3.1%和3.4%;对比同样基于Transformer分类模型ViT,MultiFormer-base在参数和计算量远小于ViT-Base/16模型且无须大量数据预训练前提下提升2.1%。
文摘History shows that once a nation declines, chances of revival are slim, especially for very small nations. They are either assimilated by other strong nations or shut up deep in the mountains, living a slash and burn way of living. Even if there are some ancient nations that have survived and made some progress, they did so with great difficulty. Mesopotamia, Egypt, India, Greece and Persia all are proud of their glorious past and are ambitious for national revival. But the path is not smooth. The Jewish nation, however, is an exception. What is the secret of its survival and seemingly sudden revival？
