35. A system comprising: one or more processors; and a memory coupled to the processors comprising instructions executable by the processors, the processors being operable when executing the instructions to: extract one or more features from a photo; calculate an engagement metric for the photo based on the one or more extracted features, wherein the engagement metric represents the probability that one or more users will interact with the photo; and apply one or more policies to the photo based on the engagement metric.
35. A system comprising: one or more processors; and a memory coupled to the processors comprising instructions executable by the processors, the processors being operable when executing the instructions to: extract one or more features from a photo; calculate an engagement metric for the photo based on the one or more extracted features, wherein the engagement metric represents the probability that one or more users will interact with the photo; and apply one or more policies to the photo based on the engagement metric. 48. The system of claim 35 , wherein the one or more features comprises the location where the photo was captured.