1. A method for associating persons, who are represented in a collection of images, into a group, using an automated facial recognition engine, comprising: Identifying, using the facial recognition engine, a first and a second person in each image in the collection of images using the automated facial recognition engine; Determining, using the facial recognition engine, a first number comprising the number of images in which the first person is present; Determining, using the facial recognition engine, a second number comprising the number of images in which both the first person and the second person are present; Computing, using the facial recognition engine, an association index between a first person and a second person from the ratio of the second number to the first number; Grouping, using the facial recognition engine, the first person and the second person in a group if the association index between the first and second person exceeds a certain predetermined threshold value.