| 110 | [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-machine-learning-specialist-deployed-a-model-that-provides-product-recommendations-on-a-companys-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)
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