4. The method of claim 1 , wherein: identifying, for each of the one or more annotation label terms matching the query label term, a trust rank of the entity that associated the annotation label term with the resource, each trust rank indicating a level of trust for annotation label terms that are associated by the entity, and each trust rank being based on the determined one or more trust relationships that are based on the frequency with which the user visits the one or more resources comprises: calculating an aggregated trust rank based on two or more trust ranks; and determining a relevance score of each of one or more resources that have the annotation label term based on the respective trust rank, the relevance score indicating a degree of relevance between the respective resource and the query term comprises: determining the relevance score of each of the one or more resources that have the annotation label term based on the respective aggregated trust rank.
4. The method of claim 1 , wherein: identifying, for each of the one or more annotation label terms matching the query label term, a trust rank of the entity that associated the annotation label term with the resource, each trust rank indicating a level of trust for annotation label terms that are associated by the entity, and each trust rank being based on the determined one or more trust relationships that are based on the frequency with which the user visits the one or more resources comprises: calculating an aggregated trust rank based on two or more trust ranks; and determining a relevance score of each of one or more resources that have the annotation label term based on the respective trust rank, the relevance score indicating a degree of relevance between the respective resource and the query term comprises: determining the relevance score of each of the one or more resources that have the annotation label term based on the respective aggregated trust rank. 5. The method of claim 4 , wherein calculating an aggregated trust rank comprises calculating an aggregated trust rank according to a weighing function, and the weighting function is one of a linear weighting function, an asymptotic weighting function, a decaying weighting function or a sigmoid weighting function.