17. The computer-readable storage medium of claim 11 , wherein the instructions for ranking based on likelihood comprise instructions for determining a likelihood based on a score of a model of features of the context slice including slice location, user, and beginning and end times of the context slice.
17. The computer-readable storage medium of claim 11 , wherein the instructions for ranking based on likelihood comprise instructions for determining a likelihood based on a score of a model of features of the context slice including slice location, user, and beginning and end times of the context slice. 18. The computer-readable storage medium of claim 17 , wherein the model is further informed by venue hours of operation, venue popularity, category popularity, user routine, or social interest.