Fix train/predict bugs in PairwiseANN #271
Merged
Conversation
This file contains bidirectional Unicode text that may be interpreted or compiled differently than what appears below. To review, open the file in an editor that reveals hidden Unicode characters.
Learn more about bidirectional Unicode characters
Sign up for free
to join this conversation on GitHub.
Already have an account?
Sign in to comment
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Outdated suggestions cannot be applied.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.
Issue #, if available:
Description of changes:
Fix train/predict bugs in PairwiseANN:
(1) For training, deep copy the
X_trnandY_cscmatrix, to prevent pX/pY being modified and deleted at Python level. Otherwise, the PairwiseANN index may save the wrong content, or facing sagmentation fault.(2) For inference, searchers take in the
pred_params, which pre-allocate the memory of return numpy array. We do not accept differenttopkat PairwiseANN.predict(), as it cause complexity to slice the returned matrix back.By submitting this pull request, I confirm that my contribution is made under the terms of the Apache 2.0 license.