73. The computing system of claim 21 , wherein identifying candidate data records includes comparing the query to a data store mapping queries to candidate clusters including an entry mapping the query to a first cluster.
73. The computing system of claim 21 , wherein identifying candidate data records includes comparing the query to a data store mapping queries to candidate clusters including an entry mapping the query to a first cluster. 76. The computing system of claim 73 , wherein the processor is further configured to: receive a request to confirm membership of the selected data record in the first store information in the data store so that updates of the data store in response to requests associated with other data records do not change membership of the selected data record in the first membership cluster.