If the number of times two actors appeared in a movie is needed, links are assigned weights.
[3] The co-stardom network can also be represented by a bipartite graph where nodes are of two types: actors and movies.
In order to represent any network, it is necessary to characterize the properties of the corresponding graph of nodes and links.
Studies on the collaboration network of movie actors have been described in literature such as the work done by Watts and Strogatz (1998)[2] and Barabási and Albert in 1999[3] and 2000[citation needed].
IMDB facilitates the ability to collect data for very specific and variable types of network.