Customizing Chainer

• Define your own function
  • Differentiable Functions
  • Unified forward/backward methods with NumPy/CuPy functions
  • Write an Elementwise Kernel Function
  • Write a function with training/test mode
  • Links that wrap functions
  • Testing Function
• Create your own trainer extension
  • What is trainer Extension?
  • Write a simple function
  • Write a function decorated with @make_extension
  • Write a class inherited from Extension class