Patent ID: 8438183

Claim:
A method comprising: receiving an inquiry to initiate a search for data concerning a specific individual; determining, based on said inquiry, a strategy to search a reference database; searching said reference database, in accordance with said strategy, for a match to said inquiry; outputting said match: and outputting an indicator of a level of confidence that said match is an appropriate match to said inquiry, wherein said indicator indicates what reference data was used to form an opinion regarding said level of confidence, wherein said determining said strategy comprises: extracting, from said inquiry, an attribute that is relevant to said searching; assigning a weight to said attribute, thus yielding a weighted attribute, wherein said weight is indicative of a usefulness of said attribute in finding a match to said inquiry; and establishing a function, based on said weighted attribute, wherein said searching comprises: retrieving from said reference database, candidates having attribute values that indicate likely matches to said inquiry, based on said function; determining a best candidate from said candidates; and returning said best candidate as said match, wherein said inquiry includes an inquiry value for said attribute, and wherein said establishing comprises: modifying said weight as a function of a number of records in said reference database that have said inquiry value for said attribute.