Design a search relevance prediction approach

Q: Design a search relevance prediction approach

This is a Machine Learning interview question from Amazon for Machine Learning Engineer roles. View the full question and solution on PracHub.

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Question

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Search relevance prediction

You are asked to predict relevance for an e-commerce search engine (given a user query and a product/document).

Prompt

How would you model relevance (classification vs regression vs learning-to-rank)?
What features would you engineer (lexical, semantic, behavioral, context)?
How would you obtain labels (human judgments vs clicks/purchases) and handle bias in behavioral data?
What offline metrics would you use, and how would you validate online?

Design a search relevance prediction approach

Search relevance prediction

Prompt

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