A Machine Learning Specialist Deployed a Model That Provides Product

question 129

Multiple Choice

A Machine Learning Specialist deployed a model that provides product recommendations on a company's website. Initially, the model was performing very well and resulted in customers buying more products on average. However, within the past few months, the Specialist has noticed that the effect of product recommendations has diminished and customers are starting to return to their original habits of spending less. The Specialist is unsure of what happened, as the model has not changed from its initial deployment over a year ago. Which method should the Specialist try to improve model performance?

• A) The model needs to be completely re-engineered because it is unable to handle product inventory changes.
• B) The model's hyperparameters should be periodically updated to prevent drift.
• C) The model should be periodically retrained from scratch using the original data while adding a regularization term to handle product inventory changes
• D) The model should be periodically retrained using the original training data plus new data as product inventory changes.

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Definitions:

Apples

Edible fruits from the apple tree, with a sweet taste and crisp texture, consumed worldwide and used in various cuisines for dishes such as pies, juices, and ciders.

Bananas

A curved, yellow fruit with soft, sweet flesh when ripe, often eaten as a snack or used in cooking.

Nominal Interest Rate

The interest rate before adjustments for inflation, representing the face value of interest payments.

Rational Consumer

An assumption in economics that consumers always make logical decisions that provide them with the highest level of personal utility.