| 摘要 |
One embodiment of the present invention provides a system for detecting in-person meetings between users of mobile devices. During operation, the system collects information regarding characteristics of features of the users' surrounding environment as detected by the mobile devices. The characteristics of the detected features are compared with each other to produce observations and the observations are applied to a hidden Markov model to detect meetings between the users. Features detected from the surroundings may include Wi-Fi signals, discoverable Bluetooth signals, and ambient sounds. |
