text: Title: About loss in Tensorboard
  Body: Hello everyone,
  
  I run the example of Multi-layer perceptron, and visualize the loss in Tensorboard.
  
  Does "Loss" refer to the training loss on each batch? And "Loss/Validation" refers to the loss on validation set? What does "Loss_var_loss" refer to?
  
  ![screenshot from 2017-08-22 10-49-05](https://user-images.githubusercontent.com/30203331/29571631-b4c9b48a-8727-11e7-98ba-0d6ed9dc1c86.png)
  