Best Accuracy to Training Time Ratio

A medium SQL interview practice problem on DataDriven. Write and execute real sql code with instant grading.

Domain

SQL

Difficulty

medium

Seniority

L4

Problem

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.

Summary

Fast to train. Accurate too. Which model?

Practice This Problem

Solve this SQL problem with real code execution. DataDriven runs your SQL queries against a real database and grades it automatically.