


Elsa gets very upset and leaves Arendelle. At the party to celebrate her coronation, she loses control of her magic, casting Arendelle into a spell of eternal winter.

At Elsa’s twenty-first birthday, she is crowned queen of Arendelle. To protect Anna, Elsa has been avoiding her since they were very young. Elsa has a magical power that allows her to create snow and ice, but this magic is dangerous to her and the people around her. Have you seen the movie Frozen? It tells the story of two orphaned sisters, Elsa and Anna, who are princesses of the kingdom of Arendelle. Scientists are now developing centrality measures that also consider changes over time and different types of relationships. We also discuss how people use centralities to study many kinds of networks, not just social ones. In this paper, we talk about how different types of centralities measure importance in different ways. The idea is to compute numbers called centralities, which are ways of measuring who is important in social networks. How do we determine the important characters in a movie like Frozen? We can watch it, of course, but there are also other ways-using mathematics and computers-to see who is important in the social network of a story.
