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Hi, it can be seen from formula 6 that during calculating the cross entropy loss for y^cls and \sum(y^head_i^cls), we first calculate for each class, and finally add the loss of all classes to get the total loss. So, for a image with multiple classes, the label of the image will be a 1*20 tensor (20 is the number of classes in PASCAL VOC). When training the classifier in the entire network, the label for each class (i.e., image label [i]) will also be trained separately. For more information, you can refer to the relevant knowledge of multi-label classification.
作者您好,我拜读了您的关于面向目标检测的多实例主动学习方法论文,也复现了您基于mmdetection的代码,有个小问题向您请教,有关于mil分类器训练不是十分理解,一张图像可能有多个目标,比如同时有猫和狗,那么如何给这个图像整体的标签去训练这个整体分类器呢,我知道这个答案应该在公式6中,但是每个锚点的真实值可以给定,如何给定整张图像的标签呢
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