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Answer: The model predicts 95% of the most popular videos measured by watch time within 30 days of being uploaded.
The correct answer is C: 'The model predicts 95% of the most popular videos measured by watch time within 30 days of being uploaded.' This is a suitable metric because watch time is a strong indicator of video engagement and popularity. Options A and B are not reliable measures since likes and clicks can be manipulated and do not necessarily reflect the video’s true popularity. Option D, referring to the Pearson correlation coefficient being equal to 0, indicates no correlation, which is not useful for predicting video popularity. Therefore, measuring watch time is the most accurate and meaningful indicator of a video's success.
Author: LeetQuiz Editorial Team
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Your company manages a video sharing website where users can watch and upload videos. You are tasked with creating a machine learning model to predict which newly uploaded videos are likely to become the most popular. This is important so that those videos can be prioritized and featured on your company's website to enhance user engagement and satisfaction. Considering the following options, which result should you use to determine whether the model is successful?
A
The model predicts videos as popular if the user who uploads them has over 10,000 likes.
B
The model predicts 97.5% of the most popular clickbait videos measured by number of clicks.
C
The model predicts 95% of the most popular videos measured by watch time within 30 days of being uploaded.
D
The Pearson correlation coefficient between the log-transformed number of views after 7 days and 30 days after publication is equal to 0.
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