1. A method for inferring a high-level context associated with a mobile device, the method comprising: accessing low-level context information for each of a plurality of other devices, wherein location information associated with each of the other devices indicates a proximity to a location of the mobile device, and wherein the low-level context information for each of the other devices is based on data collected by a sensor of the respective other device; aggregating the low-level context information across the plurality of other devices; comparing the aggregated low-level context information to a plurality of templates, each template being associated with a high-level context and including one or more histograms of context data; determining match scores between the aggregated low-level context information and each of the one or more histograms of context data; and transmitting, to the mobile device, a multi-device statistical summary comprising the aggregated low-level context information and the match scores; and the mobile device inferring a context based on the multi-device statistical summary and additional data not included in the multi-device statistical summary.
1. A method for inferring a high-level context associated with a mobile device, the method comprising: accessing low-level context information for each of a plurality of other devices, wherein location information associated with each of the other devices indicates a proximity to a location of the mobile device, and wherein the low-level context information for each of the other devices is based on data collected by a sensor of the respective other device; aggregating the low-level context information across the plurality of other devices; comparing the aggregated low-level context information to a plurality of templates, each template being associated with a high-level context and including one or more histograms of context data; determining match scores between the aggregated low-level context information and each of the one or more histograms of context data; and transmitting, to the mobile device, a multi-device statistical summary comprising the aggregated low-level context information and the match scores; and the mobile device inferring a context based on the multi-device statistical summary and additional data not included in the multi-device statistical summary. 5. The method of claim 1 , further comprising: estimating a time context of the mobile device, wherein the mobile device is estimated to be in the time context and at the location simultaneously, and wherein each of the plurality of other devices is estimated to be at the respective proximity during another time context, the time context and the another time context being the same.