The Euclidean distance uses the cubes of the distances along the individual dimensions.

The Euclidean distance uses the cubes of the distances along the individual dimensions.

1. True
2. False

When using the Euclidean distance to measure similarity we often encounter features with different ranges. Which of the following actions should be taken in this situation?

1. Remove all features with very small ranges.
2. Do nothing.
3. Scale the ranges of the features.
4. Remove all features with very large ranges.

Which of the following is often used in feature selection to reduce the dimensional of a similarity problem?

1. The scale of the feature.
2. Remove binary type features.
3. Remove decimal type features.
4. Remove integer type features.
5. Domain knowledge.

When performing similarity measurements amongst non-numeric features, a common practice is to first try to order the values of the non-numeric features. What can be said of the resulting ordinal values?

1. They can be only used in exact equality similarity measurements.
2. They can be used to perform exact and relative similarity measurements.
3. They are useless.