One Drawback of Collaborative Filtering (CF) Is That

question 41

Multiple Choice

One drawback of collaborative filtering (CF) is that:

• A) it does not work well for a single product category.
• B) it needs a large sample of users and content to work well.
• C) it can accept inputs from only one data source at a time.
• D) it is not useful for making recommendations across related as well as unrelated categories.

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Definitions:

Sampling Distribution

The chance distribution of a measure found by taking many samples from a given population.

Skewed Right

A distribution of data where the tail on the right side of the distribution is longer or fatter than the left side.

Normal Distribution

Normal Distribution is a probability distribution that is symmetric about the mean, showing that data near the mean are more frequent in occurrence.

Skewed Right

A distribution that has a tail on the right side, indicating that the majority of data points are concentrated on the left.