Best Accuracy to Training Time Ratio
A medium SQL mock interview question on DataDriven, with an AI interviewer who asks follow-up questions and a hire or no-hire decision at the end.
- Domain
- SQL
- Difficulty
- medium
- Seniority
- L4
Interview Prompt
A model's training time here is its training timestamp counted in days since the Unix epoch. From `ml_models`, find the three models delivering the least accuracy per million days of training time, with each one's name, accuracy, training timestamp, training days and that rate.
Summary
Fast to train. Accurate too. Which model?
How This Interview Works
- Read the vague prompt (just like a real interview)
- Ask clarifying questions to the AI interviewer
- Write and run your SQL against a real database
- Answer the interviewer's follow-up questions, then get a hire or no-hire decision