From e55f13fd26b9e7ff5b4b395500baa2c9a0c822b9 Mon Sep 17 00:00:00 2001
From: Stefan Hahmann <stefan.hahmann@tu-dresden.de>
Date: Wed, 25 Oct 2023 09:21:58 +0200
Subject: [PATCH] Add TODO re standardizing cost function

---
 .../mamut/treesimilarity/ZhangUnorderedTreeEditDistance.java    | 2 ++
 1 file changed, 2 insertions(+)

diff --git a/src/main/java/org/mastodon/mamut/treesimilarity/ZhangUnorderedTreeEditDistance.java b/src/main/java/org/mastodon/mamut/treesimilarity/ZhangUnorderedTreeEditDistance.java
index 6b4456932..4746cabc1 100644
--- a/src/main/java/org/mastodon/mamut/treesimilarity/ZhangUnorderedTreeEditDistance.java
+++ b/src/main/java/org/mastodon/mamut/treesimilarity/ZhangUnorderedTreeEditDistance.java
@@ -238,6 +238,8 @@ private static Double defaultCostFunction( Double o1, Double o2 )
 		else if ( o1 == null )
 			return o2;
 		else
+			// TODO: standardize the cost function?
+			// return Math.abs( o1 - o2) / (o1 + o2);
 			return Math.abs( o1 - o2 );
 	}