<human>:  How do you calculate organizational centrality?
<bot>: Organizational centrality is a measure of how important a person is in an organization. It is calculated by counting the number of ties that a person has with other people in the organization. For example, if a person has a tie to every other person in the organization, then they have a centrality of 1. If a person has a tie to every other person in the organization except for one person, then they have a centrality of 0.5.