Artificial Intelligence Artificial Intelligence 5

Question 1

Which technique adapts a large pre-trained model to a specific task using a smaller labeled dataset?

Accepted Answer

Fine-tuning

Answer

Fine-tuning continues training a pre-trained model on task-specific data, leveraging transfer learning.

Question 2

An AI chatbot confidently states a false fact that sounds plausible. What is this phenomenon called?

Accepted Answer

Hallucination

Answer

Hallucination refers to language models generating fluent but factually incorrect or fabricated content.

Question 3

In a Markov decision process, what property must state transitions satisfy?

Accepted Answer

They depend only on the current state and action

Answer

The Markov property requires that the next state depends only on the current state and action, not past history.

Question 4

Which evaluation approach splits data into multiple folds, training and testing on different combinations?

Accepted Answer

Cross-validation

Answer

K-fold cross-validation rotates which fold is held out for testing, giving a more reliable performance estimate.

Question 5

A recommendation system suggests movies based on what similar users enjoyed. What is this approach called?

Accepted Answer

Collaborative filtering

Answer

Collaborative filtering recommends items using the preferences of users with similar tastes.

Artificial Intelligence Practice Test