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🌍 pre-IAIO (unofficial) 2026, Unofficial pre-IAIO contest (Nitro)

The Hidden Noise

Reconstruct clean features from structured-noise inputs using a pipeline trained on the clean data and the true targets.

Statement
English
To hand in
A predictions file
Hardware
A laptop is enough (CPU)
Data type
📊 Tables
Estimated difficulty
★★☆☆☆
Solution
See a solution ↗ · best opened after you have tried

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The chapters of the learning path that prepare for this problem.

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›How to tackle it
  1. Read the statement. What to hand in, the metric that scores you, the time and hardware limits.
  2. Explore the data. Size, format, missing values, how the labels are spread.
  3. Score yourself first. Keep part of the training data aside to measure your work before submitting.
  4. Start simple, then improve. A first solution that works end to end, then one change at a time.
  5. Compare with a solution. Once you have searched, open it and see what you would have done differently.

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