Mechanisms for generating a set of one or more elements of a fingerprint for a document, the document comprising a semantic construct having one or more ordered words, are provided. With these mechanisms, a range of sizes for a fingerprint element is defined and ordered words of the semantic construct...http://www.google.fr/patents/US7555489?utm_source=gb-gplus-shareBrevet US7555489 - Generating a fingerprint for a document