diff --git a/jobs/python/data_drift.py b/jobs/python/data_drift.py
index 8adcdbe0cea7146f53bbbda85481e3e20bb2e78a..bd6a7a0569f9bb10d493dbf26498d8e7faef87d4 100644
--- a/jobs/python/data_drift.py
+++ b/jobs/python/data_drift.py
@@ -1,90 +1,106 @@
-from pyspark.sql import SparkSession
-from pyspark.sql.types import StructType, StructField, StringType, DoubleType, IntegerType
-from pyspark.sql.functions import when, col, isnull
-from pyspark.ml.classification import LogisticRegressionModel
-from pyspark.ml.evaluation import MulticlassClassificationEvaluator
-from pyspark.ml.feature import VectorAssembler, StringIndexer
-
-spark = SparkSession.builder.master("local").appName("DataDriftSimulation").getOrCreate()
-
-schema = StructType([
- StructField("customerID", StringType(), True),
- StructField("gender", StringType(), True),
- StructField("SeniorCitizen", StringType(), True),
- StructField("Partner", StringType(), True),
- StructField("Dependents", StringType(), True),
- StructField("tenure", DoubleType(), True),
- StructField("PhoneService", StringType(), True),
- StructField("MultipleLines", StringType(), True),
- StructField("InternetService", StringType(), True),
- StructField("OnlineSecurity", StringType(), True),
- StructField("OnlineBackup", StringType(), True),
- StructField("DeviceProtection", StringType(), True),
- StructField("TechSupport", StringType(), True),
- StructField("StreamingTV", StringType(), True),
- StructField("StreamingMovies", StringType(), True),
- StructField("Contract", StringType(), True),
- StructField("PaperlessBilling", StringType(), True),
- StructField("PaymentMethod", StringType(), True),
- StructField("MonthlyCharges", DoubleType(), True),
- StructField("TotalCharges", DoubleType(), True),
- StructField("Churn", StringType(), True)
-])
-
-original_data_path = "dataset/cleaned_data.csv"
-original_data_df = spark.read.csv(original_data_path, header=True, schema=schema)
-
-for column in ['gender', 'Partner', 'Dependents', 'PhoneService', 'MultipleLines', 'InternetService', 'OnlineSecurity', 'OnlineBackup', 'DeviceProtection', 'TechSupport', 'StreamingTV', 'StreamingMovies', 'Contract', 'PaperlessBilling', 'PaymentMethod']:
- if original_data_df.filter(isnull(col(column))).count() > 0:
- print(f"Null values found in {column}")
-
-original_data_df = original_data_df.withColumn("SeniorCitizen", col("SeniorCitizen").cast(IntegerType()))
-
-data_drift_df = original_data_df.sample(fraction=0.2, seed=42)
-
-if data_drift_df.count() == 0:
- print("data_drift_df is empty after sampling.")
-
-data_drift_df = data_drift_df.withColumn('Churn', when(data_drift_df['Churn'] == 'Yes', 1).otherwise(0).cast(IntegerType()))
-
-model_path = 'logistic_regression_model'
-loaded_model = LogisticRegressionModel.load(model_path)
-
-categorical_columns = ['gender', 'Partner', 'Dependents', 'PhoneService', 'MultipleLines', 'InternetService', 'OnlineSecurity', 'OnlineBackup', 'DeviceProtection', 'TechSupport', 'StreamingTV', 'StreamingMovies', 'Contract', 'PaperlessBilling', 'PaymentMethod']
+from pyspark.sql import SparkSession
+from pyspark.sql.types import StructType, StructField, StringType, DoubleType, IntegerType
+from pyspark.sql.functions import when, col, isnull, monotonically_increasing_id, rand
+from pyspark.ml.classification import LogisticRegressionModel
+from pyspark.ml.evaluation import MulticlassClassificationEvaluator
+from pyspark.ml.feature import VectorAssembler, StringIndexer
+
+spark = SparkSession.builder.master("local").appName("DataDriftSimulation").getOrCreate()
+
+schema = StructType([
+ StructField("customerID", StringType(), True),
+ StructField("gender", StringType(), True),
+ StructField("SeniorCitizen", StringType(), True),
+ StructField("Partner", StringType(), True),
+ StructField("Dependents", StringType(), True),
+ StructField("tenure", DoubleType(), True),
+ StructField("PhoneService", StringType(), True),
+ StructField("MultipleLines", StringType(), True),
+ StructField("InternetService", StringType(), True),
+ StructField("OnlineSecurity", StringType(), True),
+ StructField("OnlineBackup", StringType(), True),
+ StructField("DeviceProtection", StringType(), True),
+ StructField("TechSupport", StringType(), True),
+ StructField("StreamingTV", StringType(), True),
+ StructField("StreamingMovies", StringType(), True),
+ StructField("Contract", StringType(), True),
+ StructField("PaperlessBilling", StringType(), True),
+ StructField("PaymentMethod", StringType(), True),
+ StructField("MonthlyCharges", DoubleType(), True),
+ StructField("TotalCharges", DoubleType(), True),
+ StructField("Churn", StringType(), True)
+])
+
+original_data_path = "dataset/cleaned_data.csv"
+original_data_df = spark.read.csv(original_data_path, header=True, schema=schema)
+
+for column in ['gender', 'Partner', 'Dependents', 'PhoneService', 'MultipleLines', 'InternetService', 'OnlineSecurity', 'OnlineBackup', 'DeviceProtection', 'TechSupport', 'StreamingTV', 'StreamingMovies', 'Contract', 'PaperlessBilling', 'PaymentMethod']:
+ if original_data_df.filter(isnull(col(column))).count() > 0:
+ print(f"Null values found in {column}")
+
+original_data_df = original_data_df.withColumn("SeniorCitizen", col("SeniorCitizen").cast(IntegerType()))
+
+data_drift_df = original_data_df.sample(fraction=0.2, seed=42)
+
+if data_drift_df.count() == 0:
+ print("data_drift_df is empty after sampling.")
+
+data_drift_df = data_drift_df.withColumn('Churn', when(data_drift_df['Churn'] == 'Yes', 1).otherwise(0).cast(IntegerType()))
+
+data_drift_df = data_drift_df.withColumn("customerID", monotonically_increasing_id().cast(StringType()))
+
+# Introduce significant changes to the new data to drop accuracy
+data_drift_df = data_drift_df.withColumn("MonthlyCharges", col("MonthlyCharges") * (1 + rand() * 0.5))
+data_drift_df = data_drift_df.withColumn("TotalCharges", col("TotalCharges") * (1 + rand() * 0.5))
+data_drift_df = data_drift_df.withColumn("Churn", when(rand() > 0.5, 1).otherwise(0))
+
+model_path = 'logistic_regression_model'
+loaded_model = LogisticRegressionModel.load(model_path)
+
+categorical_columns = ['gender', 'Partner', 'Dependents', 'PhoneService', 'MultipleLines', 'InternetService', 'OnlineSecurity', 'OnlineBackup', 'DeviceProtection', 'TechSupport', 'StreamingTV', 'StreamingMovies', 'Contract', 'PaperlessBilling', 'PaymentMethod']
+
+for column in categorical_columns:
+ indexer = StringIndexer(inputCol=column, outputCol=column + "_index", handleInvalid="keep")
+ data_drift_df = indexer.fit(data_drift_df).transform(data_drift_df)
for column in categorical_columns:
- indexer = StringIndexer(inputCol=column, outputCol=column + "_index", handleInvalid="keep")
- data_drift_df = indexer.fit(data_drift_df).transform(data_drift_df)
+ if data_drift_df.filter(isnull(col(column + "_index"))).count() > 0:
+ print(f"Null values found in {column + '_index'}")
-for column in categorical_columns:
- if data_drift_df.filter(isnull(col(column + "_index"))).count() > 0:
- print(f"Null values found in {column + '_index'}")
+feature_columns = [col + "_index" for col in categorical_columns] + ['tenure', 'MonthlyCharges', 'TotalCharges']
+assembler = VectorAssembler(inputCols=feature_columns, outputCol='features')
-feature_columns = [col + "_index" for col in categorical_columns] + ['tenure', 'MonthlyCharges', 'TotalCharges']
-assembler = VectorAssembler(inputCols=feature_columns, outputCol='features')
+data = assembler.transform(data_drift_df)
-data = assembler.transform(data_drift_df)
+predictions = loaded_model.transform(data)
-predictions = loaded_model.transform(data)
+evaluator = MulticlassClassificationEvaluator(labelCol='Churn', predictionCol='prediction', metricName='accuracy')
+accuracy = evaluator.evaluate(predictions)
-evaluator = MulticlassClassificationEvaluator(labelCol='Churn', predictionCol='prediction', metricName='accuracy')
-accuracy = evaluator.evaluate(predictions)
+print(f"Accuracy after data drift: {accuracy * 100:.2f}%")
-print(f"Accuracy after data drift: {accuracy * 100:.2f}%")
+# Select only the original columns for merging
+data_drift_df = data_drift_df.select("customerID", "gender", "SeniorCitizen", "Partner", "Dependents", "tenure", "PhoneService", "MultipleLines", "InternetService", "OnlineSecurity", "OnlineBackup", "DeviceProtection", "TechSupport", "StreamingTV", "StreamingMovies", "Contract", "PaperlessBilling", "PaymentMethod", "MonthlyCharges", "TotalCharges", "Churn")
-if accuracy < 0.70:
- print("Accuracy is below 70%. Triggering retraining of the model.")
- from airflow.models import DagBag
- dag_bag = DagBag()
- sparking_flow_dag = dag_bag.get_dag('sparking_flow')
-
- if sparking_flow_dag:
- sparking_flow_dag.clear()
- sparking_flow_dag.run()
- print("Successfully triggered sparking_flow DAG.")
- else:
- print("sparking_flow DAG not found.")
-else:
- print("Accuracy is acceptable.")
+# Merge old and new data
+merged_data_df = original_data_df.union(data_drift_df)
-spark.stop()
+output_path = "dataset/data_drifted_customers.csv"
+merged_data_df.write.csv(output_path, header=True, mode='overwrite')
+
+if accuracy < 0.70:
+ print("Accuracy is below 70%. Triggering retraining of the model.")
+ from airflow.models import DagBag
+ dag_bag = DagBag()
+ sparking_flow_dag = dag_bag.get_dag('sparking_flow')
+
+ if sparking_flow_dag:
+ sparking_flow_dag.clear()
+ sparking_flow_dag.run()
+ print("Successfully triggered sparking_flow DAG.")
+ else:
+ print("sparking_flow DAG not found.")
+else:
+ print("Accuracy is acceptable.")
+
+spark.stop()