matrices.py: add 'full_matrices=False' to svd call #1546
Merged
Add this suggestion to a batch that can be applied as a single commit.
This suggestion is invalid because no changes were made to the code.
Suggestions cannot be applied while the pull request is closed.
Suggestions cannot be applied while viewing a subset of changes.
Only one suggestion per line can be applied in a batch.
Add this suggestion to a batch that can be applied as a single commit.
Applying suggestions on deleted lines is not supported.
You must change the existing code in this line in order to create a valid suggestion.
Outdated suggestions cannot be applied.
This suggestion has been applied or marked resolved.
Suggestions cannot be applied from pending reviews.
Suggestions cannot be applied on multi-line comments.
Suggestions cannot be applied while the pull request is queued to merge.
Suggestion cannot be applied right now. Please check back later.
Description
The align method in geomstats/geometry/pre_shape.py invokes align_matrices from matrices.py that employs singular value decomposition for which autodiff fails if a full set of left/right singular vectors are requested. However, providing the flag 'full_matrices=False' to svd avoids this pitfall and yields the same alignment.
Issue
This pull request fixes the issue autodiff fails on svd in matrices.py #1545.
Additional context
The issue originally appeared in the ICLR Computational Geometry & Topology Challenge 2022 when trying to perform geodesic regression in Kendall shape space.