hack4chang commented on code in PR #13470:
URL: https://github.com/apache/lucene/pull/13470#discussion_r1632381076
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lucene/core/src/java/org/apache/lucene/search/TopDocs.java:
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@@ -350,4 +354,38 @@ private static TopDocs mergeAux(
return new TopFieldDocs(totalHits, hits, sort.getSort());
}
}
+
+ /** Reciprocal Rank Fusion method. */
+ public static TopDocs rrf(int TopN, int k, TopDocs[] hits) {
+ Map<Integer, Float> rrfScore = new HashMap<>();
+ long minHits = Long.MAX_VALUE;
+ for (TopDocs topDoc : hits) {
+ minHits = Math.min(minHits, topDoc.totalHits.value);
Review Comment:
Make sense to me, thank you for the detailed explanation!!
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