# PN Centrality

#### Definition

It is based on calculating centrality in mixed networks of positive and negative ties. It is calculated as:
Here A = P-2*N, β = 1/(2n-2) is the attenuation factor to normalizethe positive and negative ties of the network.

#### References

- Everett, M.G. and Borgatti, S.P., 2014. Networks containing negative ties. Social Networks, 38, pp.111-120. DOI: 10.1016/j.socnet.2014.03.005