A system and method for defining a schema and sending a query to a similarity search engine to determine a quantitative assessment of the similarity of attributes between an anchor record and one or more target records. The similarity search engine makes a similarity assessment in a single pass through...http://www.google.de/patents/US20040078364?utm_source=gb-gplus-sharePatent US20040078364 - Remote scoring and aggregating similarity search engine for use with relational databases