The most commonly used measure of similarity is the ________ or its square.
A)euclidean distance
B)city-block distance
C)Chebychev's distance
D)Manhattan distance

Question

Quizplus · Accepted Answer

Euclidean distance is the most commonly used measure of similarity in data science and machine learning. It calculates the straight line distance between two points in space, and is mathematically well-understood and easy to compute. It's appropriate for continuous variables, such as those found in many real-world datasets, and it's intuitive to interpret. The square of Euclidean distance, often called squared Euclidean distance, is also commonly used as a similarity measure, since it's computationally efficient and has some nice mathematical properties.

The Most Commonly Used Measure of Similarity Is the ________