Nec Laboratories America, Inc.

Gary William Flake

Brian Whitman

Stephen R Lawrence

The method of the present invention utilizes machine-learning techniques, particularly Support Vector Machines in combination with a neural network, to process a unique machine-learning enabled representation of the audio bitstream. Using this method, a classifying machine is able to autonomously detect characteristics of a piece of music, such as the artist or genre, and classify it accordingly. The method includes transforming digital time-domain representation of music into a frequency-domain representation, then dividing that frequency data into time slices, and compressing it into frequency bands to form multiple learning representations of each song. The learning representations that result are processed by a group of Support Vector Machines, then by a neural network, both previously trained to distinguish among a given set of characteristics, to determine the classification.

Extracting classifying data in music from an audio bitstream

Method for partitioning a database containing a plurality of documents into desired and undesired type documents, the plurality of documents containing text and/or links to and from other documents in the database, including: providing a source document of the desired type, the source document including a collection of seed documents linked to more similar documents of the desired type than to dissimilar documents of the undesired type; providing a sink document for providing access to the database, the sink document being generic and representative of the database; identifying a cut-set of links which is the smallest set of links such that removing them from the database completely disconnects the source document and its linked documents from the sink document and its linked documents into first and second subsets of documents, respectively; and defining the first subset of documents as desired type documents and the remaining documents as undesired type documents.

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Lawrenceville, NJ, United States of America

Gary William Flake