msokolov commented on code in PR #913:
URL: https://github.com/apache/lucene/pull/913#discussion_r878580201
##########
lucene/core/src/java/org/apache/lucene/util/VectorUtil.java:
##########
@@ -213,4 +213,21 @@ public static void add(float[] u, float[] v) {
u[i] += v[i];
}
}
+
+ public static float dotProduct(BytesRef a, int aOffset, BytesRef b, int
bOffset, int len) {
+ // fixme -- move to codec? What if later we want to access the bytes some
other way?
+ int total = 0;
+ for (int i = 0; i < len; i++) {
+ total += a.bytes[aOffset++] * b.bytes[bOffset++];
Review Comment:
I will give castShape/convert/convertShape a try. I also found
reduceLanesToLong that seems promising
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