摘要 |
Methods, systems, and apparatus, including computer programs encoded on computer storage media, for rating subjects. One of the methods includes receiving, at a user device, a rating of a real-world subject. A camera device associated with the user device is activated in response to receiving the rating of the real-world subject. Subject content of the rated real-world subject is received. The rating of the real-world subject is associated with the received subject content. |