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GATE DA 2026 Q12: Number of LOOCV validation splits

Question

Consider that you are training a classifier for a 10-class classification problem. Each input is represented as a 512-dimensional vector. There are 1000 samples, out of which first 100 will be used for testing. Let Leave-One-Out-Cross-Validation (LOOCV) be used for selection of the classifier model before testing.

Which of the following options is the correct number of validation splits that will be generated?

Try it: multiple choice: exactly one correct option

Select one option
Wrong answer costs 1/3 mark in GATE.
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Answer: C (official GATE 2026 final answer key)

Concept used: LOOCV makes one split per training sample, holding that sample out.

First step: Only the 900 non-test samples are used for model selection.

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Source: official GATE 2026 DA question paper and final answer key, organised by IIT Guwahati. Question paper · Answer key

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