Anonymizing facial expression data with a smart-cam

A non-transitory computer readable storage medium storing one or more instructions which, when executed by one or more processors, cause the one or more processors to perform:

• receiving, from a content provider, a request for information collected from users who meet one or more criteria;
• based on the one or more criteria, determining at least one particular user who meets the one or more criteria;
• retrieving timestream data collected for the at least one particular user;
• wherein the timestream data is time-stamped and associated with a history of user sessions established for the at least one particular user;
• wherein absolute time references in the timestream data have been converted to relative time references that relate to start-times of the user sessions established for the at least one particular user;
• determining one or more levels of privacy requested by each of the at least one particular user;
• based on the one or more levels of privacy, processing the timestream data to ensure the one or more levels of privacy in the timestream data;
• generating one or more statistical datasets from the processed timestream data;
• and
• based, at least in part, on the one or more criteria, determining a fee for providing the one or more statistical datasets to the content provider, and determining an award for the at least one particular user.

A device, comprising:

• one or more processors;
• and
• a trusted service unit comprising one or more memory units, and configured to perform:
• receiving, from a content provider, a request for information collected from users who meet one or more criteria;
• based on the one or more criteria, determining at least one particular user who meets the one or more criteria;
• retrieving timestream data collected for the at least one particular user;
• wherein the timestream data is time-stamped and associated with a history of user sessions established for the at least one particular user;
• wherein absolute time references in the timestream data have been converted to relative time references that relate to start-times of the user sessions established for the at least one particular user;
• determining one or more levels of privacy requested by each of the at least one particular user;
• based on the one or more levels of privacy, processing the timestream data to ensure the one or more levels of privacy in the timestream data;
• generating one or more statistical datasets from the processed timestream data;
• and
• based, at least in part, on the one or more criteria, determining a fee for providing the one or more statistical datasets to the content provider, and determining an award for the at least one particular user.