You are viewing a plain text version of this content. The canonical link for it is here.
Posted to commits@commons.apache.org by er...@apache.org on 2015/08/13 23:25:27 UTC
[math] MATH-1255
Repository: commons-math
Updated Branches:
refs/heads/MATH_3_X fcd49fc8f -> 5c3988cb0
MATH-1255
Wrong usage of "Gaussian" function.
Project: http://git-wip-us.apache.org/repos/asf/commons-math/repo
Commit: http://git-wip-us.apache.org/repos/asf/commons-math/commit/5c3988cb
Tree: http://git-wip-us.apache.org/repos/asf/commons-math/tree/5c3988cb
Diff: http://git-wip-us.apache.org/repos/asf/commons-math/diff/5c3988cb
Branch: refs/heads/MATH_3_X
Commit: 5c3988cb0414bb013464f8a12741fde37546cde3
Parents: fcd49fc
Author: Gilles <er...@apache.org>
Authored: Thu Aug 13 23:18:21 2015 +0200
Committer: Gilles <er...@apache.org>
Committed: Thu Aug 13 23:18:21 2015 +0200
----------------------------------------------------------------------
src/changes/changes.xml | 3 +++
.../commons/math3/ml/neuralnet/sofm/KohonenUpdateAction.java | 2 +-
2 files changed, 4 insertions(+), 1 deletion(-)
----------------------------------------------------------------------
http://git-wip-us.apache.org/repos/asf/commons-math/blob/5c3988cb/src/changes/changes.xml
----------------------------------------------------------------------
diff --git a/src/changes/changes.xml b/src/changes/changes.xml
index 03cfec2..4b81140 100644
--- a/src/changes/changes.xml
+++ b/src/changes/changes.xml
@@ -51,6 +51,9 @@ If the output is not quite correct, check for invisible trailing spaces!
</properties>
<body>
<release version="3.6" date="XXXX-XX-XX" description="">
+ <action dev="erans" type="fix" issue="MATH-1255">
+ Wrong neighbourhood size in class "KohonenUpdateAction" (package "o.a.c.m.ml.neuralnet.sofm").
+ </action>
<action dev="psteitz" type="fix" issue="MATH-1252" due-to="John Bay">
ResizableDoubleArray constructor does not work with double array of size 1.
</action>
http://git-wip-us.apache.org/repos/asf/commons-math/blob/5c3988cb/src/main/java/org/apache/commons/math3/ml/neuralnet/sofm/KohonenUpdateAction.java
----------------------------------------------------------------------
diff --git a/src/main/java/org/apache/commons/math3/ml/neuralnet/sofm/KohonenUpdateAction.java b/src/main/java/org/apache/commons/math3/ml/neuralnet/sofm/KohonenUpdateAction.java
index 9fa72ce..fb3ec4d 100644
--- a/src/main/java/org/apache/commons/math3/ml/neuralnet/sofm/KohonenUpdateAction.java
+++ b/src/main/java/org/apache/commons/math3/ml/neuralnet/sofm/KohonenUpdateAction.java
@@ -107,7 +107,7 @@ public class KohonenUpdateAction implements UpdateAction {
final Gaussian neighbourhoodDecay
= new Gaussian(currentLearning,
0,
- 1d / currentNeighbourhood);
+ currentNeighbourhood);
if (currentNeighbourhood > 0) {
// Initial set of neurons only contains the winning neuron.