Abstract: Apparatus and methods for restricting egress of sensor data from a feature detection process to an interactor process. The sensor data can include audio data, image data, location data, and/or other sensor-based data. The feature detection process is sandboxed to restrict the egress of data from the component. Once the feature detection process determines that a feature has been detected in sensor data, the interactor process can be provided with the sensor data and/or additional sensor data. The sensor data and/or the additional sensor data can be provided directly by an operating system and not via the feature detection process. In some implementations, a notification can be rendered once data is sent to the interactor process. The notification can indicate that the sensor data is being accessed. Rendering of the notification can be suppressed when only the sandboxed feature detection process is accessing the sensor data.

Abstract: The present technology is directed to systems and methods for determining content of interest by determining the occurrence of fast-rising features (for example, URL, fingerprint, etc.) in posts or comments provided by users within an online community, for example, a social network. The systems and methods obtain user-generated content from an online community and determine signals based on the user-generated content to calculate a frequency of the signals as they post or occur in a pre-defined time bucket or window. A first derivative difference of the frequency and a second derivative difference of the frequency is calculated based on formulating consecutive time buckets or “dynamic windows” to determine if one or more of the frequency, the first derivative difference, and the second derivative difference satisfies one or more pre-defined thresholds. The user-generated content is prioritized based on whether it satisfies the one or more pre-defined thresholds.