Methods and Systems For Categorizing a Customer of a Service as a Churner or a Non-Churner

A churn detector, the churn detector being configured to:

• obtain first call data for a user;
• use the first call data to determine a value (v1) for a graph parameter for the user, the graph parameter being one of:
• (a) an out-degree parameter, (b) a Shapley Value parameter, (c) a proximity prestige parameter, and (d) closeness centrality parameter;
• use the determined value (v1) to determine a churn value (cv);
• and
• categorize the user as a churner or a non-churner based on said churn value.

A computer program product comprising a non-transitory computer readable medium storing a computer code for categorizing a user of a communication service as a churner or non-churner, the computer code comprising:

• computer code for obtaining first call data for the user;
• computer code for using the first call data to determine a value (v1) for a graph parameter for the user, the graph parameter being one of:
• (a) an out-degree parameter, (b) a Shapley Value parameter, (c) a proximity prestige parameter, and (d) closeness centrality parameter;
• computer code for using the determined value (v1) to determine a churn value (cv);
• and
• computer code for categorizing the user as a churner or a non-churner based on said churn value.