Changelogs » Qgopt

Qgopt

0.2alpha

- Riemannian Nesterov Momentum optimizer
- Fix small bugs

0.01

This release includes two types of manifolds: S++ and Stiefel. For the Stiefel manifold one has the following types of retractions:
- svd based,
- Cayley retraction,

the following types of metrics:
- euclidean,
- canonical,

For the S++ manifold one has two types of metrics:
- log Cholesky,
- logarithmic,

and exact geodesics and parallel transport for them.
This release allows performing optimization using the following list of first-order algorithms on a manifold:

- gradient descent,
- gradient descent with momentum,
- Adam,
- AMSGrad.

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