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mAP become 0 #10

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OyamingO opened this issue Nov 23, 2020 · 6 comments
Closed

mAP become 0 #10

OyamingO opened this issue Nov 23, 2020 · 6 comments

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@OyamingO
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Why did mAP all become 0 after the second epoch when I used mobilev2-yolo5s to train my data?

@Syencil
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Syencil commented Nov 23, 2020

be careful of overfitting

@OyamingO
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OyamingO commented Nov 23, 2020 via email

@Syencil
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Syencil commented Nov 24, 2020

  1. yolov5s大概率你用了官方的coco权重,mobile没有。可以尝试yolov5s train from scratch或者将mobile版本在coco或者voc这种数据集上做pre-train。
  2. 你自己的数据集太小了或者train/val分布不均匀。

@OyamingO
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OyamingO commented Nov 24, 2020 via email

@BVVega
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BVVega commented Mar 31, 2021

image
相同的问题,我大概找了mobilenetv2的在coco上的预训练模型在mobile-yolov5s上进行finetune,为何我的map也是趋近于0,而且是越来越下降,cls=1,traindata_num=2w.请问这是什么原因呢

@Syencil
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Syencil commented Apr 14, 2021

参考 #38

@Syencil Syencil closed this as completed Apr 14, 2021
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