Patent ID: 9094508
Filing Date: 2015-07-28
Classification: H04L,H04M

Abstract:
1. A method comprising: receiving, at a first time and from a first presence agent associated with a first presence source, a first indication of a presence of a user at the first presence source; receiving, at a second time and from a second presence agent associated with a second presence source, a second indication of presence of the user at the second presence source; determining a first likelihood that the user is available at the first presence source at a third time later than the first time and the second time by applying a first monotonically decreasing and continuous function to a first difference between the first time and the third time; determining a second likelihood that the user is available at the second presence source at the third time by applying a second monotonically decreasing and continuous function to a second difference between the second time and the third time; and determining an overall presence of the user at the third time by computing a weighted average of the first likelihood and the second likelihood.