zhengruifeng created SPARK-37959:
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Summary: Fix the UT of checking norm in KMeans & BiKMeans
Key: SPARK-37959
URL: https://issues.apache.org/jira/browse/SPARK-37959
Project: Spark
Issue Type: Improvement
Components: ML
Affects Versions: 3.3.0
Reporter: zhengruifeng
In KMeansSuite and BisectingKMeansSuite, there are some unused lines:
{code:java}
model1.clusterCenters.forall(Vectors.norm(_, 2) == 1.0 {code}
For cosine distance, the norm of centering vector should be 1, so the norm
checking is meaningful;
For euclidean distance, the norm checking is meaningless;
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