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Best Accuracy to Training Time Ratio

A medium SQL mock interview question on DataDriven. Practice with AI-powered feedback, real code execution, and a hire/no-hire decision.

Domain
SQL
Difficulty
medium
Seniority
mid

Interview Prompt

The ML team is looking for models that punch above their weight: high accuracy relative to how recently they were trained, using the training timestamp's epoch value as the denominator. Which single model has the highest accuracy-to-training-time ratio? Exclude models with no accuracy score and show the model name, accuracy, training timestamp, and the ratio.

How This Interview Works

  1. Read the vague prompt (just like a real interview)
  2. Ask clarifying questions to the AI interviewer
  3. Write your sql solution with real code execution
  4. Get instant feedback and a hire/no-hire decision