AWS Certified Machine Learning – Specialty — Question 355

An ecommerce company discovers that the search tool for the company's website is not presenting the top search results to customers. The company needs to resolve the issue so the search tool will present results that customers are most likely to want to purchase.

Which solution will meet this requirement with the LEAST operational effort?

Answer options

• A. Use the Amazon SageMaker BlazingText algorithm to add context to search results through query expansion.
• B. Use the Amazon SageMaker XGBoost algorithm to improve candidate ranking.
• C. Use Amazon CloudSearch and sort results by the search relevance score.
• D. Use Amazon CloudSearch and sort results by the geographic location.

Correct answer: C

Explanation

Amazon CloudSearch is a fully managed service that offers built-in capability to sort results by search relevance, requiring the least operational effort to implement. In contrast, building and maintaining custom machine learning models using Amazon SageMaker (Options A and B) introduces significant operational overhead. Sorting by geographic location (Option D) does not align with presenting the items customers are most likely to buy based on their search queries.