ubuntu下切换keras的后端

找到目录：

~/.keras/keras.json

如果该目录下没有该文件，你可以手动创建一个。

---

theano：

keras.json文件默认配置

{
    "image_dim_ordering": "th", 
    "epsilon": 1e-07, 
    "floatx": "float32", 
    "backend": "theano"
}

thesorflow：

keras.json文件默认配置

{
    "image_dim_ordering": "tf", 
    "epsilon": 1e-07, 
    "floatx": "float32", 
    "backend": "tensorflow"
}

ref:

• http://blog.youkuaiyun.com/tangwenbo124/article/details/52627774
• http://keras-cn.readthedocs.io/en/latest/backend/