wtingting

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![7](https://user-images.githubusercontent.com/26085544/40030599-0f4d4904-581e-11e8-8c1d-8871ce3551a5.png) When I use the Coco dataset for training, the network encounters an invalid value and and loss falls into nan.Anyone knows how to solve it?Thank you!

## 基本信息 - 校区(哈尔滨/威海/深圳?): - 学位(本/硕/博?): - 论文类型(毕业论文/开题/中期/博后/English Version?): - LaTeX 发行版(TeXLive 20xx/MikTeX/**本模板不支持CTeX套装**): - 模板版本(在 `hithesis***.cls` 中的 `\ProvidesClass` 命令中的 `3.x.xx` 即为版本号): ## 想实现的效果

help wanted