8. The method of claim 1 , wherein the determining the confidence score comprises determining the confidence score based on a time of day or day of the week of the particular time.
8. The method of claim 1 , wherein the determining the confidence score comprises determining the confidence score based on a time of day or day of the week of the particular time. 9. The method of claim 8 , wherein determining the confidence score associated with the topic comprises determining the confidence score based on a degree of correlation between the topic and actions of the particular user occurring on previous days at a time of day of the particular time.