diff --git a/examples/src/main/python/ml/decision_tree_regression_example.py b/examples/src/main/python/ml/decision_tree_regression_example.py
index b734d4974a4f62c6a31001b9ea40b57f150fab06..58d7ad921d8e06351fa615faaab79a832ef1f565 100644
--- a/examples/src/main/python/ml/decision_tree_regression_example.py
+++ b/examples/src/main/python/ml/decision_tree_regression_example.py
@@ -31,7 +31,7 @@ from pyspark.sql import SparkSession
 if __name__ == "__main__":
     spark = SparkSession\
         .builder\
-        .appName("decision_tree_classification_example")\
+        .appName("DecisionTreeRegressionExample")\
         .getOrCreate()
 
     # $example on$
diff --git a/examples/src/main/python/ml/lda_example.py b/examples/src/main/python/ml/lda_example.py
index 6ca56adf3cb12417310e23ae16d694879aeb04bc..5ce810fccc6fb8859d00e1ea69474f206f08e17d 100644
--- a/examples/src/main/python/ml/lda_example.py
+++ b/examples/src/main/python/ml/lda_example.py
@@ -35,7 +35,7 @@ if __name__ == "__main__":
     # Creates a SparkSession
     spark = SparkSession \
         .builder \
-        .appName("PythonKMeansExample") \
+        .appName("LDAExample") \
         .getOrCreate()
 
     # $example on$
diff --git a/examples/src/main/python/ml/simple_params_example.py b/examples/src/main/python/ml/simple_params_example.py
index 54fbc2c9d05dfdb6883b37a5b024869e5eebd737..2f1eaa6f947f071461e90013f49b7922552a1278 100644
--- a/examples/src/main/python/ml/simple_params_example.py
+++ b/examples/src/main/python/ml/simple_params_example.py
@@ -33,7 +33,7 @@ Run with:
 if __name__ == "__main__":
     spark = SparkSession \
         .builder \
-        .appName("SimpleTextClassificationPipeline") \
+        .appName("SimpleParamsExample") \
         .getOrCreate()
 
     # prepare training data.
diff --git a/examples/src/main/scala/org/apache/spark/examples/ml/CountVectorizerExample.scala b/examples/src/main/scala/org/apache/spark/examples/ml/CountVectorizerExample.scala
index 51aa5179fa4a86318e50940581da882af4a2d0dd..988d8941a4ce7c75633a687f5b71b566786dc11b 100644
--- a/examples/src/main/scala/org/apache/spark/examples/ml/CountVectorizerExample.scala
+++ b/examples/src/main/scala/org/apache/spark/examples/ml/CountVectorizerExample.scala
@@ -27,7 +27,7 @@ object CountVectorizerExample {
   def main(args: Array[String]) {
     val spark = SparkSession
       .builder
-      .appName("CounterVectorizerExample")
+      .appName("CountVectorizerExample")
       .getOrCreate()
 
     // $example on$