Hodgepodge Notes

Gradient Descent by a Grad Student

Blog About Archive Tags

Segue from Euclidean Gradient Descent to Natural Gradient Descent

2018-12-23
  • Gradient descent
  • Natural gradients

tldr- A slight change in SGD formulation, in terms of maximization of local approximation, leads to an interesting general connection to NGD via mirror descent.

Read More

A Cleverer Trick on top of the Reparametrization Trick

2018-12-05
  • tricks
  • gradient

TL;DR - Implicit differentiation can lead to an efficient computation of the gradient of reparametrized samples.

Read More

Fascinating connection between Natural Gradients and the Exponential Family

2018-10-07
  • Gradient descent
  • Natural gradients

TL;DR - The Exponential family provides an elegant and easy method to compute Natural Gradients and thus can be used for Variational Inference.

Read More

Lipschitz Regularization Methods for WGANs

2018-09-27
  • GANs
  • Deep Learning
  • code

TL;DR- Code snippets for various Lipschitz Regularization methods for WGAN - Gradient Clipping, Gradient Penalty, Spectral Normalization etc. in PyTorch.

Read More

Another Trick for the Gradient of Expectation

2018-09-26
  • VI
  • tricks
  • gradient
  • Deep Learning

TL;DR- Another trick for interchanging the gradient and Expectation of a function under the Gaussian distribution.

Read More

© 2018 Anand Krishnamoorthy Subramanian