CentiServer
comprehensive centrality resource and server for centralities calculation version: 1.0.0

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Laplacian Centrality


Definition

If G is a graph of n vertices, then the Laplacian centrality with respect to v is:
Laplacian Centrality
where N(v) is the set of neighbors of v in G and dG(vi) is the degree of vi in G.

Laplacian centrality is a simple centrality measure that can be calculated in linear time. It is defined as the drop in the Laplacian energy (i.e. sum of squares of the eigenvalues in the Laplacian matrix) of the graph when the vertex is removed.


See:
Incremental Laplacian Centrality

Software

References

  • QI, X., DUVAL, R. D., CHRISTENSEN, K., FULLER, E., SPAHIU, A., WU, Q., WU, Y., TANG, W. & ZHANG, C. 2013. Terrorist networks, network energy and node removal: a new measure of centrality based on Laplacian energy. Social Networking, 2, 19.
  • QI, X., FULLER, E., WU, Q., WU, Y. & ZHANG, C.-Q. 2012. Laplacian centrality: A new centrality measure for weighted networks. Information Sciences, 194, 240-253.
  • Baruah, D. and Bharali, A., A Comparative Study of Vertex Deleted Centrality Measures.


Comments

Hi, 

Thank you for this great resource pool! I have a question regarding the laplacian centrality measure. In the R package centiserve it seems to compute laplacian centrality only for unweighted graphs. Do you perhaps know how I can compute laplacian centrlaity and the total graph energy for directed and weighted graphs?

Yingjie

Add Replay written October 23, 2018, 2:11 pm by Yingjie

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