| http://www.w3.org/ns/prov#value | - Computer system 1 of FIG. 1 includes a set of files including files 70, 72 and 74, containing images or other information, a storage module 3, storing associative information for files, a search module 5, searching for files, a metadata file index 10, containing information used for searching over files 70-74 stored on computer system 1, feature extractors 20, 22, 24, 26, and 28, for evaluating fi
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