A method, system and computer-usable medium are disclosed for efficient searching of a semantic model of resources and resource relationships. A query is received from an application. In turn the query is processed to determine an application usage classification for the application, which is then used to reference an index of subsets of the semantic model to identify a subset of the semantic model associated with the application usage classification. The identified subset of the semantic model is then used to modify the query, which is then used as a modified query to query the semantic model. In response, a sub-graph of the semantic model corresponding to the subset of the semantic mode is received, which in turn is provided to the application.