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cos120 avatar cos120 commented on June 14, 2024

你这个预测是指yolo的预测么？提供一下详细的细节吧。

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zhazhami avatar zhazhami commented on June 14, 2024

是的，我使用的yolov2，然后爬取了网易demo站的验证码：http://dun.163.com/trial/picture-click。
一共有500张，用的labal-img进行标记，然后cfg文件使用了yolo-origin.cfg，用训练集的图片作为测试集，只训练定位器。
大概两千次迭代之前recall都是在提升，loss在降低的，但是预测的概率一直在降低，后来就趋近0了，并且预测的位置坐标会出现负数。
请问是我爬取的训练集图片不对吗？感觉爬的demo站上的图片混淆度都比较高。

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cos120 avatar cos120 commented on June 14, 2024

你测试的时候用的是yolo-origin.cfg么，测试的时候应该把batch size调节为1，我测试的方法都是用valid得到一堆记事本文件，之后自己再切出来的。如果是训练过程中darknet自己进行的正确率预测我没有遇到过你说的准确率降低的情况，recall大致能到0.9，你的label可以上传一下看看。

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zhazhami avatar zhazhami commented on June 14, 2024

好的非常感谢！我回去把batch size改下试试

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