Abstract: Mechanisms are provided for generating an answer for an input question when the answer is not directly present in a corpus of information. An input question is received from a computing device and analyzed to determine whether the input question is requesting an answer that is calculable. In response to a determination that the input question is requesting an answer that is calculable, one or more constituent data values are retrieved, from a corpus of information, for calculating the requested answer to the input question. A value corresponding to the requested answer is calculated based on the one or more retrieved constituent data values and is then output as the requested answer to the input question.

Abstract: Messaging interactions among a set of network user access accounts is monitored at a presence server. The messaging interactions between the set of network user access accounts are ranked based upon a characteristic of the messaging interactions. A presence filtering profile is automatically configured that defines distribution controls for presence information for the set of network user access accounts based upon the determined ranking. Distribution of the presence information for the set of network user access accounts is controlled based upon the configured presence filtering profile.