Significance of Low Frequent Terms in Patent Classification using IPC Hierarchy

Akmal Saeed Khattak, Gerhard Heyer. Significance of Low Frequent Terms in Patent Classification using IPC Hierarchy. In Gerald Eichler, Axel Küpper, Volkmar Schau, Hacène Fouchal, Herwig Unger, editors, 2CS 2011), June 15-17, 2011, Deutsche Telekom Laboratories, Berlin, Germany. Volume P-186 of LNI, pages 239-250, GI, 2011. [doi]

Abstract

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