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  1. DZone
  2. Data Engineering
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  4. Inventory Predictions With Databricks

Inventory Predictions With Databricks

Inventory management and integrating AI analytics involve leveraging advanced algorithms and models to gain insights, make predictions, or automate decision-making.

By 
Prashanth Mally user avatar
Prashanth Mally
·
Jan. 22, 24 · Tutorial
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In the context of inventory management, integrating AI analytics involves leveraging advanced algorithms and models to gain insights, make predictions, or automate decision-making. Let's enhance the example with an illustrative AI analytics scenario.

Enhanced Step 1: Setup

Ensure that your Databricks environment is configured to support machine learning libraries and tools.

Enhanced Step 2: Sample Data

In addition to the basic data, include a column for item price to simulate the monetary value of each item.

Python
 
# Sample data

data = {

    'ItemID': [101, 102, 103, 101, 104],

    'TransactionDate': [datetime(2023, 1, 1), datetime(2023, 1, 2), datetime(2023, 1, 2), datetime(2023, 1, 3), datetime(2023, 1, 4)],

    'Quantity': [100, -50, 30, 20, -10],

    'TransactionType': ['In', 'Out', 'In', 'In', 'Out'],

    'ItemPrice': [10.0, 15.0, 20.0, 10.0, 30.0]

}

df = pd.DataFrame(data)


Enhanced Step 3: Load Data Into Databricks

Ensure the table includes the new column for the item price.

Enhanced Step 4: AI Analytics — Predict Future Inventory Value

Use machine learning to predict the future total value of inventory based on historical data.

Python
 
Copy code

from pyspark.ml.feature import VectorAssembler

from pyspark.ml.regression import LinearRegression



# Feature engineering

assembler = VectorAssembler(inputCols=['Quantity'], outputCol='features')

df_features = assembler.transform(inventory_df)



# Linear regression model

lr = LinearRegression(featuresCol='features', labelCol='ItemPrice')

model = lr.fit(df_features)



# Generate future dates for prediction

future_dates = [datetime(2023, 1, 5), datetime(2023, 1, 6)]

future_data = pd.DataFrame({'TransactionDate': future_dates, 'Quantity': [25, -15]})



# Transform the future data

df_future = assembler.transform(spark.createDataFrame(future_data))



# Make predictions

predictions = model.transform(df_future)



# Display the predictions

predictions.select('TransactionDate', 'Quantity', 'prediction').show()


In this example, we've applied a simple linear regression model to predict the future inventory value based on historical transaction quantities. In a real-world scenario, you could explore more sophisticated models and include additional features for a comprehensive AI-driven inventory management system.

Question Might Arise: Why Vector and Linear Regression Model

In the context of the inventory example, using VectorAssembler and Linear Regression is a simplified approach for illustration. Here's why these are chosen:

VectorAssembler

  • Feature engineering: VectorAssembler is used for feature engineering, which involves transforming the input features into a format that can be used by machine learning algorithms. In this case, 'Quantity' is chosen as the feature.
  • Input requirement: Many machine learning algorithms, including regression models, expect input features to be in vector format. VectorAssembler efficiently combines the selected features into a single vector column.

Linear Regression

  • Predictive modeling: Linear Regression is a straightforward and interpretable model that works well when there's a linear relationship between the input features and the target variable (dependent variable). In the context of inventory, it assumes a linear relationship between quantities of items and their prices.
  • Interpretability: Linear Regression provides coefficients that represent the impact of each feature on the target variable. The inventory example helps us understand how changes in item quantities influence item prices.

Why Not Other Regressions?

  • Polynomial regression: While it can capture non-linear relationships, it might introduce unnecessary complexity for a simple example. It's generally applied when there's evidence of a polynomial relationship in the data.
  • Decision trees or random forests: These are powerful for complex relationships but might be overkill for a scenario where a linear relationship is expected.
  • Time series models: For inventory, time-series models like ARIMA or SARIMA could be beneficial for forecasting, especially when dealing with seasonality and trends. However, this would require a more extensive dataset and consideration of time-based patterns.
AI Linear regression Machine learning Random forest Time series Data (computing)

Opinions expressed by DZone contributors are their own.

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  • Improving Inventory Management Using Machine Learning and Artificial Intelligence
  • Implementing Ethical AI: Practical Techniques for Aligning AI Agents With Human Values
  • The Transformer Algorithm: A Love Story of Data and Attention

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