Abstract: A computer-implemented method including the steps of maintaining, by a computer system including at least one computer, a database in which is stored first data related to identification of one or more works and second data related to information corresponding to each of the one or more works as identified by the first data. Extracted features of a work to be identified are obtained. The work is identified by comparing the extracted features of the work with the first data in the database using a non-exhaustive neighbor search. The information corresponding to the identified work is determined based on the second data in the database. The determined information is associated with the identified work.