The Philosophy of Collaborative Tag Suggestion
Selecting good tags
High popularity à tag quality
High coverage of multiple facets à good recall
Least effort à reduce the cost involved in browsing
Eliminating tag spam
Utilizing collective user tagging behavior and authorities
Collaborative Tag Suggestion Algorithm
S(t’,o) = S(t’,o) + Ps(t’|ti;o) x S(ti,o) – Pa(t’|ti) x S(ti,o)
Ps(t’|ti;o) : correlation probability between t’ and ti for the object o
Pa(t’|ti) : overlap probability in terms of the concepts between t’ and ti
S(t’,o) : goodness measure (score) of the tag t’ to an object o
a(u) : authority score of a given user u
Experiments based on Yahoo My Web 2.0 tag data
Suggested Tags for the
URLhttp://wiki.osfoundation.org/bin/view/Projects/AjaxLibraries