1. A method, comprising: accessing a record set comprising a plurality of records; generating a plurality of terms for said plurality of records, individual ones of said plurality of terms comprising a q-gram of a fixed character length; determining a plurality of respective parameter frequencies for said plurality of terms; at least partially in response to said determining a plurality of respective parameter frequencies, assigning particular termIDs to said plurality of terms based, at least in part, on said respective parameter frequencies, wherein said particular termIDs comprise an identifier to indicate a term/record frequency within said record set; comparing one or more positions of said termIDs for first terms of a first vector of terms for a first candidate record and for second terms of a second vector of terms for a second candidate record to determine whether there is an overlap between the first and second vectors.