38. An apparatus, comprising: one or more processors; a tag association component, implemented at least partially by the one or more processors, configured to, based on first input from a first plurality of users, identify associations between particular tags in a plurality of tags and particular items of multimedia content, the associations including a first set of associations based on a subset of the first input that was received from a first user in the first plurality of users; a tag rating component, implemented at least partially by the one or more processors, configured to, based on second input from a second plurality of users, identify ratings for particular associations between the particular tags and the particular items, the ratings including a first set of ratings based on a subset of the second input that was received from the first user, and a second set of ratings for the first set of associations; a user reliability component, implemented at least partially by the one or more processors, configured to determine user reliability scores for users in the second plurality of users, the determining of user reliability scores including determining a first user reliability score, for the first user, based upon the second set of ratings; a weighting component, implemented at least partially by the one or more processors, configured to determine weighted ratings based upon the ratings and the user reliability scores, the determining of weighted ratings including weighting the first set of ratings based upon the first user reliability score; and a scoring component, implemented at least partially by the one or more processors, configured to determine quality scores for the particular associations based upon the weighted ratings.
38. An apparatus, comprising: one or more processors; a tag association component, implemented at least partially by the one or more processors, configured to, based on first input from a first plurality of users, identify associations between particular tags in a plurality of tags and particular items of multimedia content, the associations including a first set of associations based on a subset of the first input that was received from a first user in the first plurality of users; a tag rating component, implemented at least partially by the one or more processors, configured to, based on second input from a second plurality of users, identify ratings for particular associations between the particular tags and the particular items, the ratings including a first set of ratings based on a subset of the second input that was received from the first user, and a second set of ratings for the first set of associations; a user reliability component, implemented at least partially by the one or more processors, configured to determine user reliability scores for users in the second plurality of users, the determining of user reliability scores including determining a first user reliability score, for the first user, based upon the second set of ratings; a weighting component, implemented at least partially by the one or more processors, configured to determine weighted ratings based upon the ratings and the user reliability scores, the determining of weighted ratings including weighting the first set of ratings based upon the first user reliability score; and a scoring component, implemented at least partially by the one or more processors, configured to determine quality scores for the particular associations based upon the weighted ratings. 39. The apparatus of claim 38 , further comprising one or more of: an association removal component, implemented at least partially by the one or more processors, configured to remove an association if a particular quality score calculated for the association is below a specified threshold; or an interface provision component, implemented at least partially by the one or more processors, configured to cause a user interface to display tags whose associations have higher quality scores more prominently than tags whose associations have lower quality scores.