What is the measurement parameter for Relationship Intelligence?

Hugrank is a parameter that indicates the strength of a relationship between an employee and a contact or an account, based on the recency and frequency of email and calendar exchanges. Hugrank is calculated for contacts, accounts, employees, and relationships that are available in Relationship Intelligence, a feature of SAP Sales Cloud Version 2 that helps uncover hidden relationships and gain deeper insights into the level of engagement with external customers. References = Setting up Relationship Intelligence - SAP Learning, Relationship Intelligence - SAP Online Help, Relationship Intelligence | SAP Help Portal