Description:

Perspectives are the visual perspectives used by the game.

Datatype:

set with elements

Possible Values:

{"1st-Person Perspective", "3rd-Person Perspective", "Isometric", etc.}

Similarity Calculation:

|Fi(A) ∩ Fi(B)| is the number of distinct perspectives shared by both games A and B

|Fi(A) U Fi(B)| is the number of distinct perspectives of games A and B

                   |Fi(A) ∩ Fi(B)|

Simi(A, B) = --------------------- * 100

                    |Fi(A) U Fi(B)|

example:         game A = "Gunstar Heroes (SEGA Genesis)", Fi(A) = ("3rd-Person Perspective", "Side Scrolling")

                      game B = "Alien Storm (SEGA Genesis)", Fi(B) = ("1st-Person Perspective", "3rd-Person Perspective", "Side Scrolling")

              |Fi(A) ∩ Fi(B)| = |("3rd-Person Perspective", "Side Scrolling")| = 2

              |Fi(A) U Fi(B)| = |("1st-Person Perspective", "3rd-Person Perspective", "Side Scrolling")| = 3

                   Simi(A, B) = (2 / 3) * 100 = 66