Abstract: Offline activity management systems, interactions, interfaces, and methods are disclosed for generating sets of offline social activities that may form the basis of social recommendations for users. An interpersonal network manager selects venues based on requirements such as a geographic area and generates potential offline social activities based on these venues. The interpersonal network manager tests the predicted fitness of the potential offline social activities against semi-random sets of users in the network, and selects potential offline social activities that are predicted to be the most enjoyable to the test users. The selected potential offline social activities are presented to users as offline social recommendations.

Abstract: Offline activity management systems, interactions, interfaces, and methods are disclosed for facilitating user creation of successful offline social activities. An interpersonal network manager provides interfaces for entering or selecting the details of a potential offline social activity. A user selects a target size for the activity, which may correspond to an activity size limit maximum or minimum based on the venue or size of the location. The user selects a list of potential guests to invite to the potential offline social activity, and indicates an invitation preference. The interpersonal network manager selects sets of potential guests to invite to the potential offline social activity on the basis of the invitation preference and information on the potential guests. The interpersonal network manager stops inviting guests when the target size is reached.