Your data look like this?

money transfers, network traffic, sales, phone calls, messages, contacts, ...

Read this paper and/or email me.

Matthieu Latapy - matthieu.latapy@lip6.fr - HDR (in french) - CV (pdf) - ComplexNetworks team - Complex Systems department - LIP6 - CNRS and SU
all my publications, with pdf - arxiv - google scholar - dblp - hal - my former (outdated) web page