📚 Learning Guide
Classification Summary
hard

In the context of multi-class classification, selecting an appropriate __________ is crucial for aligning the model's performance with the classification objectives.

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Learning Path
Learning Path

Question & Answer
1
Understand Question
2
Review Options
3
Learn Explanation
4
Explore Topic

Choose the Best Answer

A

feature set

B

loss function

C

evaluation metric

D

activation function

Understanding the Answer

Let's break down why this is correct

Answer

In multi‑class classification the choice of loss function determines what the model actually optimizes. A loss that matches the classification goal—such as cross‑entropy for probability outputs—guides the network toward better class probabilities. If the loss is mismatched, the model may learn patterns that improve training error but hurt real‑world accuracy. For example, using mean squared error on one‑hot labels can lead to slow convergence and poor class discrimination. Therefore, picking the correct loss function is essential for the model to learn what really matters for the task.

Detailed Explanation

The loss function tells the model how far its predictions are from the true labels. Other options are incorrect because People often think that picking the best set of input variables will automatically make the model perform well; Some believe that the metric used to evaluate the model after training will guide the learning process.

Key Concepts

Loss Functions
Classification Evaluation Metrics
Model Performance
Topic

Classification Summary

Difficulty

hard level question

Cognitive Level

understand

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