Patent ID: 8688595

Claim:
A method for constructing a network of communication flows for a social group comprising a plurality of members, the following method steps being performed by a computer, the method comprising: detecting at least one relationship between the plurality of members according to a flow of communication between the plurality of members; detecting implicit communication to form detected implicit communication by detecting purchasing the same or similar products at the same or similar time and also further by detecting one or more of communicating within the same cellular cell on a repeated basis, one or more of communicating from, living in, or working in the same geographical location at the same time, or a combination thereof, wherein said detected implicit communication is further detected by at least one commercial transaction; analyzing said detected implicit communication to determine possible transfer of information between each plurality of members having said relationship to determine influence according to a mathematical model of information transfer through implicit communication, wherein said mathematical model determines a weighting of said influence; determining active and passive coefficients for active and passive transfer of information, respectively, by analyzing said influence, wherein said active and passive coefficients are determined according to said detected implicit communication and according to said weighting; and detecting at least one key member of the network of communication flows according to said active and passive coefficients for transfer of information.