From 9cce739cfc9c345746aaf17b31852d34a471c0ca Mon Sep 17 00:00:00 2001
From: Samuel Herman <sherman8915@gmail.com>
Date: Tue, 17 Oct 2023 16:13:57 -0700
Subject: [PATCH] wire z-score normalization

Signed-off-by: Samuel Herman <sherman8915@gmail.com>
---
 .../processor/normalization/ScoreNormalizationFactory.java    | 4 +++-
 1 file changed, 3 insertions(+), 1 deletion(-)

diff --git a/src/main/java/org/opensearch/neuralsearch/processor/normalization/ScoreNormalizationFactory.java b/src/main/java/org/opensearch/neuralsearch/processor/normalization/ScoreNormalizationFactory.java
index 667c237c7..c42df96fe 100644
--- a/src/main/java/org/opensearch/neuralsearch/processor/normalization/ScoreNormalizationFactory.java
+++ b/src/main/java/org/opensearch/neuralsearch/processor/normalization/ScoreNormalizationFactory.java
@@ -19,7 +19,9 @@ public class ScoreNormalizationFactory {
         MinMaxScoreNormalizationTechnique.TECHNIQUE_NAME,
         new MinMaxScoreNormalizationTechnique(),
         L2ScoreNormalizationTechnique.TECHNIQUE_NAME,
-        new L2ScoreNormalizationTechnique()
+        new L2ScoreNormalizationTechnique(),
+        ZScoreNormalizationTechnique.TECHNIQUE_NAME,
+        new ZScoreNormalizationTechnique()
     );
 
     /**