uschindler commented on code in PR #13308:
URL: https://github.com/apache/lucene/pull/13308#discussion_r1572248253
##########
lucene/core/src/java/org/apache/lucene/index/VectorSimilarityFunction.java:
##########
@@ -61,24 +60,6 @@ public float compare(byte[] v1, byte[] v2) {
}
},
- /**
- * Cosine similarity. NOTE: the preferred way to perform cosine similarity
is to normalize all
- * vectors to unit length, and instead use {@link
VectorSimilarityFunction#DOT_PRODUCT}. You
- * should only use this function if you need to preserve the original
vectors and cannot normalize
- * them in advance. The similarity score is normalised to assure it is
positive.
- */
- COSINE {
- @Override
- public float compare(float[] v1, float[] v2) {
- return Math.max((1 + cosine(v1, v2)) / 2, 0);
- }
-
- @Override
- public float compare(byte[] v1, byte[] v2) {
- return (1 + cosine(v1, v2)) / 2;
- }
- },
Review Comment:
Anyways, we have to keep the constant in 10.x for reading old indexes.
--
This is an automated message from the Apache Git Service.
To respond to the message, please log on to GitHub and use the
URL above to go to the specific comment.
To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org
For queries about this service, please contact Infrastructure at:
us...@infra.apache.org
---------------------------------------------------------------------
To unsubscribe, e-mail: issues-unsubscr...@lucene.apache.org
For additional commands, e-mail: issues-h...@lucene.apache.org
