mayya-sharipova commented on a change in pull request #366:
URL: https://github.com/apache/lucene/pull/366#discussion_r726246065
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File path:
lucene/core/src/java/org/apache/lucene/codecs/lucene90/Lucene90FieldInfosFormat.java
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@@ -99,11 +99,12 @@
* <li>PointDimensionCount, PointNumBytes: these are non-zero only if the
field is indexed as
* points, e.g. using {@link org.apache.lucene.document.LongPoint}
* <li>VectorDimension: it is non-zero if the field is indexed as vectors.
- * <li>VectorDistFunction: a byte containing distance function used for
similarity calculation.
+ * <li>VectorSimilarityFunction: a byte containing distance function used
for similarity
+ * calculation.
* <ul>
- * <li>0: no distance function is defined for this field.
- * <li>1: EUCLIDEAN_HNSW distance. ({@link
VectorSimilarityFunction#EUCLIDEAN})
- * <li>2: DOT_PRODUCT_HNSW score. ({@link
VectorSimilarityFunction#DOT_PRODUCT})
+ * <li>0: EUCLIDEAN distance. ({@link
VectorSimilarityFunction#EUCLIDEAN})
+ * <li>1: DOT_PRODUCT similarity. ({@link
VectorSimilarityFunction#DOT_PRODUCT})
+ * <li>2: COSINE similarity. ({@link VectorSimilarityFunction#COSINE})
Review comment:
Thanks for letting me know about this. may be we can add a new COSINE
similarity there as well?
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